{"id":18023,"date":"2026-08-13T06:44:02","date_gmt":"2026-08-13T10:44:02","guid":{"rendered":"https:\/\/wp.glbgpt.com\/?p=18023"},"modified":"2026-08-13T06:44:04","modified_gmt":"2026-08-13T10:44:04","slug":"deepseek-v4-pro-review","status":"publish","type":"post","link":"https:\/\/wp.glbgpt.com\/fr\/hub\/deepseek-v4-pro-review","title":{"rendered":"Test du DeepSeek V4 Pro : ce qui a chang\u00e9, les tests de performances, les tarifs et comment l'essayer"},"content":{"rendered":"<section data-dsv4-visual=\"quick-answer\" style=\"font-family:Inter,ui-sans-serif,system-ui,-apple-system,'Segoe UI',sans-serif;color:#17223b;box-sizing:border-box;max-width:1100px;margin:20px auto 30px;padding:clamp(22px,4vw,34px);border-radius:24px;overflow:hidden;background:linear-gradient(135deg,#eaf2ff 0%,#f1edff 55%,#e7faf3 100%);border:1px solid #cbd9ee;box-shadow:0 16px 42px rgba(29,61,112,.11)\">\n  <div style=\"display:inline-flex;align-items:center;gap:8px;margin:0 0 16px;padding:7px 11px;border-radius:999px;background:#ffffff;border:1px solid #d6e0f1;color:#50617c;font-size:12px;font-weight:850;letter-spacing:.08em;text-transform:uppercase\">Updated August 13, 2026 <span aria-hidden=\"true\" style=\"color:#7b61e8\">&#8226;<\/span> Independent hands-on review<\/div>\n  <p style=\"margin:0;font-size:clamp(17px,2.1vw,21px);line-height:1.72;color:#1d2b46\"><strong style=\"color:#14378c\">R\u00e9ponse rapide :<\/strong> DeepSeek V4 is officially available as DeepSeek-V4-Pro-0813 and DeepSeek-V4-Flash-0731. Both list a 1M-token context window and 384K maximum output. Flash is the low-cost, high-concurrency choice; Pro costs more but was more reliable on our strictest multi-constraint task.<\/p>\n  <div aria-label=\"Key DeepSeek V4 facts\" style=\"display:flex;flex-wrap:wrap;gap:9px;margin-top:20px\">\n    <span style=\"padding:8px 12px;border-radius:999px;background:#ffffff;border:1px solid #cbd8ed;font-size:13px;font-weight:800\">Pro-0813<\/span>\n    <span style=\"padding:8px 12px;border-radius:999px;background:#ffffff;border:1px solid #cbd8ed;font-size:13px;font-weight:800\">Flash-0731<\/span>\n    <span style=\"padding:8px 12px;border-radius:999px;background:#ffffff;border:1px solid #cbd8ed;font-size:13px;font-weight:800\">Contexte 1M<\/span>\n    <span style=\"padding:8px 12px;border-radius:999px;background:#ffffff;border:1px solid #cbd8ed;font-size:13px;font-weight:800\">384K sortie max.<\/span>\n    <span style=\"padding:8px 12px;border-radius:999px;background:#ffffff;border:1px solid #cbd8ed;font-size:13px;font-weight:800\">Thinking + non-thinking<\/span>\n  <\/div>\n<\/section>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>DeepSeek V4 Flash is the better default for most users.<\/strong> It matched Pro in our coding tests and 20.7K-token retrieval tests, while costing far less. Pro justified its higher price only on the hardest task: it scored 12\/12 on a strict launch memo where Flash scored 8\/12.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">That makes the choice straightforward. Start with Flash for routine coding, retrieval, extraction, and high-volume work. Pay for Pro when one arithmetic error, missed constraint, or malformed deliverable could cost more than the model.<\/p>\n\n\n\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\">\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/www.glbgpt.com\/home?inviter=hub_popup&amp;login=1\"><img alt=\"\" fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"640\" src=\"https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/03\/image-831-1024x640.png\" class=\"wp-image-15877\" srcset=\"https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/03\/image-831-1024x640.png 1024w, https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/03\/image-831-300x187.png 300w, https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/03\/image-831-768x480.png 768w, https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/03\/image-831-1536x960.png 1536w, https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/03\/image-831-2048x1279.png 2048w, https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/03\/image-831-18x12.png 18w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-3e41869c wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-black-color has-luminous-vivid-amber-background-color has-text-color has-background has-link-color wp-element-button\" href=\"https:\/\/www.glbgpt.com\/home?inviter=hub_popup&amp;login=1\">Essayez plus de 100 mod\u00e8les phares sur GlobalGPT<\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<nav data-dsv4-visual=\"table-of-contents\" aria-label=\"Table des mati\u00e8res\" style=\"font-family:Inter,ui-sans-serif,system-ui,-apple-system,'Segoe UI',sans-serif;color:#17223b;box-sizing:border-box;max-width:1100px;margin:30px auto;padding:clamp(22px,4vw,28px);border-radius:22px;background:#112541;color:#ffffff;box-shadow:0 14px 34px rgba(17,37,65,.18);box-sizing:border-box\">\n  <div style=\"display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;margin-bottom:16px\"><h2 style=\"margin:0;color:#ffffff;font-size:clamp(20px,3vw,25px)\">DeepSeek V4 review: contents<\/h2><span style=\"padding:6px 10px;border-radius:999px;background:#263d5d;color:#cfe0ff;font-size:12px;font-weight:800\">11 sections<\/span><\/div>\n  <ol style=\"display:grid;grid-template-columns:repeat(auto-fit,minmax(min(230px,100%),1fr));gap:16px;margin:0;padding:0;list-style:none;counter-reset:dsv4toc\"><li style=\"min-width:0\"><a href=\"#release-status\" style=\"display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:12px;background:#1b3353;color:#e7efff;text-decoration:none;font-weight:720\"><span aria-hidden=\"true\" style=\"display:inline-grid;place-items:center;flex:0 0 28px;width:28px;height:28px;border-radius:9px;background:#31517b;color:#ffffff;font-size:12px;font-weight:900\">1<\/span><span>Statut de publication<\/span><\/a><\/li><li style=\"min-width:0\"><a href=\"#what-changed\" style=\"display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:12px;background:#1b3353;color:#e7efff;text-decoration:none;font-weight:720\"><span aria-hidden=\"true\" style=\"display:inline-grid;place-items:center;flex:0 0 28px;width:28px;height:28px;border-radius:9px;background:#31517b;color:#ffffff;font-size:12px;font-weight:900\">2<\/span><span>What changed<\/span><\/a><\/li><li style=\"min-width:0\"><a href=\"#pro-vs-flash\" style=\"display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:12px;background:#1b3353;color:#e7efff;text-decoration:none;font-weight:720\"><span aria-hidden=\"true\" style=\"display:inline-grid;place-items:center;flex:0 0 28px;width:28px;height:28px;border-radius:9px;background:#31517b;color:#ffffff;font-size:12px;font-weight:900\">3<\/span><span>Pro vs Flash<\/span><\/a><\/li><li style=\"min-width:0\"><a href=\"#hands-on-tests\" style=\"display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:12px;background:#1b3353;color:#e7efff;text-decoration:none;font-weight:720\"><span aria-hidden=\"true\" style=\"display:inline-grid;place-items:center;flex:0 0 28px;width:28px;height:28px;border-radius:9px;background:#31517b;color:#ffffff;font-size:12px;font-weight:900\">4<\/span><span>Essais pratiques<\/span><\/a><\/li><li style=\"min-width:0\"><a href=\"#official-benchmarks\" style=\"display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:12px;background:#1b3353;color:#e7efff;text-decoration:none;font-weight:720\"><span aria-hidden=\"true\" style=\"display:inline-grid;place-items:center;flex:0 0 28px;width:28px;height:28px;border-radius:9px;background:#31517b;color:#ffffff;font-size:12px;font-weight:900\">5<\/span><span>Tests de performance officiels<\/span><\/a><\/li><li style=\"min-width:0\"><a href=\"#api-pricing\" style=\"display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:12px;background:#1b3353;color:#e7efff;text-decoration:none;font-weight:720\"><span aria-hidden=\"true\" style=\"display:inline-grid;place-items:center;flex:0 0 28px;width:28px;height:28px;border-radius:9px;background:#31517b;color:#ffffff;font-size:12px;font-weight:900\">6<\/span><span>Prix de l'API<\/span><\/a><\/li><li style=\"min-width:0\"><a href=\"#context-and-limits\" style=\"display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:12px;background:#1b3353;color:#e7efff;text-decoration:none;font-weight:720\"><span aria-hidden=\"true\" style=\"display:inline-grid;place-items:center;flex:0 0 28px;width:28px;height:28px;border-radius:9px;background:#31517b;color:#ffffff;font-size:12px;font-weight:900\">7<\/span><span>1M context and limits<\/span><\/a><\/li><li style=\"min-width:0\"><a href=\"#how-to-try\" style=\"display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:12px;background:#1b3353;color:#e7efff;text-decoration:none;font-weight:720\"><span aria-hidden=\"true\" style=\"display:inline-grid;place-items:center;flex:0 0 28px;width:28px;height:28px;border-radius:9px;background:#31517b;color:#ffffff;font-size:12px;font-weight:900\">8<\/span><span>How to try it<\/span><\/a><\/li><li style=\"min-width:0\"><a href=\"#which-model\" style=\"display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:12px;background:#1b3353;color:#e7efff;text-decoration:none;font-weight:720\"><span aria-hidden=\"true\" style=\"display:inline-grid;place-items:center;flex:0 0 28px;width:28px;height:28px;border-radius:9px;background:#31517b;color:#ffffff;font-size:12px;font-weight:900\">9<\/span><span>Which model to choose<\/span><\/a><\/li><li style=\"min-width:0\"><a href=\"#final-verdict\" style=\"display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:12px;background:#1b3353;color:#e7efff;text-decoration:none;font-weight:720\"><span aria-hidden=\"true\" style=\"display:inline-grid;place-items:center;flex:0 0 28px;width:28px;height:28px;border-radius:9px;background:#31517b;color:#ffffff;font-size:12px;font-weight:900\">10<\/span><span>Verdict final<\/span><\/a><\/li><li style=\"min-width:0\"><a href=\"#faq\" style=\"display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:12px;background:#1b3353;color:#e7efff;text-decoration:none;font-weight:720\"><span aria-hidden=\"true\" style=\"display:inline-grid;place-items:center;flex:0 0 28px;width:28px;height:28px;border-radius:9px;background:#31517b;color:#ffffff;font-size:12px;font-weight:900\">11<\/span><span>FAQ<\/span><\/a><\/li><\/ol>\n<\/nav>\n\n\n\n<h2 id=\"release-status\" class=\"wp-block-heading\">Is DeepSeek V4 officially released?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Oui.<\/strong> As checked on August 13, 2026, the <a href=\"https:\/\/api-docs.deepseek.com\/quick_start\/pricing\">official Models &amp; Pricing page<\/a> lists DeepSeek-V4-Pro-0813 and DeepSeek-V4-Flash-0731. That is the current status to use\u2014not the July 31 changelog sentence saying Pro would follow soon.<\/p>\n\n\n\n<section data-dsv4-visual=\"release-tiers\" style=\"font-family:Inter,ui-sans-serif,system-ui,-apple-system,'Segoe UI',sans-serif;color:#17223b;box-sizing:border-box;max-width:1100px;margin:26px auto;display:grid;grid-template-columns:repeat(auto-fit,minmax(min(230px,100%),1fr));gap:16px;box-sizing:border-box\">\n  <article style=\"min-width:0;padding:20px;border-radius:18px;background:#ffffff;border:1px solid #d7dfed;box-shadow:0 8px 24px rgba(28,47,82,.07);box-sizing:border-box;border-top:5px solid #7657ef\"><span style=\"display:inline-block;margin:0 0 10px;font-size:12px;line-height:1.2;text-transform:uppercase;letter-spacing:.08em;color:#66758c;font-weight:850\">Quality tier<\/span><h3 style=\"margin:0 0 10px;font-size:20px;color:#332174\">DeepSeek V4 Pro<\/h3><p style=\"margin:6px 0;line-height:1.6\"><strong>Version:<\/strong> Pro-0813<\/p><p style=\"margin:6px 0;line-height:1.6\"><strong>Le plus adapt\u00e9 :<\/strong> harder coding, agents, reasoning, and constraint-heavy deliverables.<\/p><\/article>\n  <article style=\"min-width:0;padding:20px;border-radius:18px;background:#ffffff;border:1px solid #d7dfed;box-shadow:0 8px 24px rgba(28,47,82,.07);box-sizing:border-box;border-top:5px solid #2864ff\"><span style=\"display:inline-block;margin:0 0 10px;font-size:12px;line-height:1.2;text-transform:uppercase;letter-spacing:.08em;color:#66758c;font-weight:850\">Efficiency tier<\/span><h3 style=\"margin:0 0 10px;font-size:20px;color:#1746a2\">DeepSeek V4 Flash<\/h3><p style=\"margin:6px 0;line-height:1.6\"><strong>Version:<\/strong> Flash-0731<\/p><p style=\"margin:6px 0;line-height:1.6\"><strong>Le plus adapt\u00e9 :<\/strong> high-throughput production, routine coding, retrieval, and cost-sensitive workloads.<\/p><\/article>\n<\/section>\n\n\n\n<p class=\"wp-block-paragraph\">The names can be confusing because the V4 technical report describes Preview variants, while the live API uses dated production versions. Throughout this review, \u201cPro\u201d means Pro-0813 and \u201cFlash\u201d means Flash-0731 unless a sentence explicitly says \u201cV4 Preview.\u201d<\/p>\n\n\n\n<figure data-dsv4-visual=\"evidence-figure\" style=\"font-family:Inter,ui-sans-serif,system-ui,-apple-system,'Segoe UI',sans-serif;color:#17223b;box-sizing:border-box;max-width:1100px;margin:30px auto;padding:16px;border-radius:22px;background:#ffffff;border:1px solid #d9e1ee;border-top:5px solid #2864ff;box-shadow:0 12px 34px rgba(25,39,67,.09);box-sizing:border-box\"><div style=\"display:inline-flex;align-items:center;margin:0 0 12px;padding:6px 10px;border-radius:999px;background:#f1f5fb;color:#41526d;font-size:12px;font-weight:850;letter-spacing:.06em;text-transform:uppercase\">Official pricing and specifications<\/div><img decoding=\"async\" style=\"display:block;width:100%;height:auto;border-radius:16px;border:1px solid #d7deea;background:#f4f7fb\" src=\"https:\/\/static.futureshareai.com\/glb_features\/deepseek-v4-official-models-pricing-2026-08-13.webp\" alt=\"DeepSeek V4 Pro and Flash official model versions, context limits, features, and API prices\" width=\"1280\" height=\"1236\"><figcaption style=\"margin:11px 3px 2px;font-size:14px;line-height:1.62;color:#59677d\">DeepSeek API Docs listed V4-Pro-0813 and V4-Flash-0731 with 1M context and dated token prices on August 13, 2026. Prices are dynamic and should be rechecked before publication.<\/figcaption><\/figure>\n\n\n\n<figure data-dsv4-visual=\"evidence-figure\" style=\"font-family:Inter,ui-sans-serif,system-ui,-apple-system,'Segoe UI',sans-serif;color:#17223b;box-sizing:border-box;max-width:1100px;margin:30px auto;padding:16px;border-radius:22px;background:#ffffff;border:1px solid #d9e1ee;border-top:5px solid #e3a21a;box-shadow:0 12px 34px rgba(25,39,67,.09);box-sizing:border-box\"><div style=\"display:inline-flex;align-items:center;margin:0 0 12px;padding:6px 10px;border-radius:999px;background:#f1f5fb;color:#41526d;font-size:12px;font-weight:850;letter-spacing:.06em;text-transform:uppercase\">Official release history<\/div><img decoding=\"async\" style=\"display:block;width:100%;height:auto;border-radius:16px;border:1px solid #d7deea;background:#f4f7fb\" src=\"https:\/\/static.futureshareai.com\/glb_features\/deepseek-v4-flash-0731-official-update.webp\" alt=\"DeepSeek V4 Flash July 31 official update and agent benchmark notes\" width=\"1280\" height=\"871\"><figcaption style=\"margin:11px 3px 2px;font-size:14px;line-height:1.62;color:#59677d\">The July 31 update documents Flash, benchmark settings, and Codex support. Its \u201cPro will follow soon\u201d wording is a historical release note, not the August 13 status.<\/figcaption><\/figure>\n\n\n\n<h2 id=\"what-changed\" class=\"wp-block-heading\">What changed in DeepSeek V4 Pro?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The clearest changes are scale, context capacity, agent-oriented interfaces, and a two-tier product strategy. DeepSeek\u2019s <a href=\"https:\/\/huggingface.co\/deepseek-ai\/DeepSeek-V4-Pro\">official Pro model card<\/a> identifies a mixture-of-experts model with 1.6 trillion total parameters and 49 billion active parameters, released under MIT. The accompanying V4 materials describe new attention and routing work aimed at making million-token processing practical.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Two current tiers:<\/strong> Pro for quality-sensitive work and Flash for throughput and cost.<\/li>\n\n\n\n<li><strong>Much longer working memory:<\/strong> a listed 1M-token context window for both models.<\/li>\n\n\n\n<li><strong>Large generation ceiling:<\/strong> up to 384K output tokens in the official specification.<\/li>\n\n\n\n<li><strong>Agent interfaces:<\/strong> tool calls, JSON output, Responses API, and Anthropic-compatible access.<\/li>\n\n\n\n<li><strong>Open weights:<\/strong> official V4 model cards and files are available, though serious local deployment remains a major infrastructure project.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">That combination makes V4 relevant to repository-scale coding, long research packets, and multi-step agent traces. It also changes the competitive frame: a useful evaluation now needs to look beyond chat quality and ask how the model behaves under tools, strict formats, and long inputs. Our <a href=\"https:\/\/www.glbgpt.com\/hub\/deepseek-vs-chatgpt\/\">DeepSeek vs ChatGPT comparison<\/a> gives more background on where those ecosystems differ.<\/p>\n\n\n\n<figure data-dsv4-visual=\"evidence-figure\" style=\"font-family:Inter,ui-sans-serif,system-ui,-apple-system,'Segoe UI',sans-serif;color:#17223b;box-sizing:border-box;max-width:1100px;margin:30px auto;padding:16px;border-radius:22px;background:#ffffff;border:1px solid #d9e1ee;border-top:5px solid #7657ef;box-shadow:0 12px 34px rgba(25,39,67,.09);box-sizing:border-box\"><div style=\"display:inline-flex;align-items:center;margin:0 0 12px;padding:6px 10px;border-radius:999px;background:#f1f5fb;color:#41526d;font-size:12px;font-weight:850;letter-spacing:.06em;text-transform:uppercase\">Official model card<\/div><img loading=\"lazy\" decoding=\"async\" style=\"display:block;width:100%;height:auto;border-radius:16px;border:1px solid #d7deea;background:#f4f7fb\" src=\"https:\/\/static.futureshareai.com\/glb_features\/deepseek-v4-pro-official-huggingface-model-card.webp\" alt=\"Official DeepSeek V4 Pro Hugging Face model card and open weights\" width=\"1062\" height=\"1280\"><figcaption style=\"margin:11px 3px 2px;font-size:14px;line-height:1.62;color:#59677d\">The official model card identifies DeepSeek-V4-Pro, the MIT license, the 1.6T\/49B design, and one-million-token support.<\/figcaption><\/figure>\n\n\n\n<h2 id=\"pro-vs-flash\" class=\"wp-block-heading\">DeepSeek V4 Pro vs Flash: the practical difference<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Both versions expose the same headline context and output limits, so this is not a \u201cfull model versus short-context model\u201d choice. It is mainly a quality, price, and capacity-planning decision. Flash\u2019s official concurrency ceiling is five times Pro\u2019s, while Pro\u2019s cache-miss input and output tokens cost a little over three times as much.<\/p>\n\n\n\n<section data-dsv4-visual=\"specification-card-table\" data-dsv4-table=\"pro-vs-flash\" aria-label=\"DeepSeek V4 Pro versus Flash specifications\" style=\"font-family:Inter,ui-sans-serif,system-ui,-apple-system,'Segoe UI',sans-serif;color:#17223b;box-sizing:border-box;max-width:1100px;margin:28px auto;padding:clamp(18px,3vw,24px);border-radius:22px;background:#f5f8fd;border:1px solid #d7e0ee;box-sizing:border-box\">\n  <div style=\"display:flex;flex-wrap:wrap;align-items:end;justify-content:space-between;gap:10px;margin-bottom:16px\"><div><span style=\"display:inline-block;margin:0 0 10px;font-size:12px;line-height:1.2;text-transform:uppercase;letter-spacing:.08em;color:#66758c;font-weight:850;color:#31527e\">Side-by-side specifications<\/span><h3 style=\"margin:0;font-size:22px;color:#142b4f\">Pro vs Flash at a glance<\/h3><\/div><div style=\"display:flex;gap:8px;font-size:12px;font-weight:850\"><span style=\"padding:7px 10px;border-radius:999px;background:#e6efff;color:#1746a2\">Flash<\/span><span style=\"padding:7px 10px;border-radius:999px;background:#eee9ff;color:#4d35a7\">Pro<\/span><\/div><\/div>\n  <div style=\"display:grid;gap:10px\"><div style=\"display:grid;grid-template-columns:repeat(auto-fit,minmax(min(240px,100%),1fr));gap:12px;padding:14px;border-radius:15px;background:#ffffff;border:1px solid #dce4ef\"><strong style=\"align-self:center;color:#263955;line-height:1.45\">Current version<\/strong><div style=\"display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px\"><div style=\"min-width:0;padding:10px;border-radius:11px;background:#eef4ff;color:#1746a2;overflow-wrap:anywhere\"><span style=\"display:block;margin-bottom:4px;font-size:10px;letter-spacing:.08em;text-transform:uppercase;font-weight:850\">Flash<\/span><span style=\"font-weight:720\">Flash-0731<\/span><\/div><div style=\"min-width:0;padding:10px;border-radius:11px;background:#f2edff;color:#4d35a7;overflow-wrap:anywhere\"><span style=\"display:block;margin-bottom:4px;font-size:10px;letter-spacing:.08em;text-transform:uppercase;font-weight:850\">Pro<\/span><span style=\"font-weight:720\">Pro-0813<\/span><\/div><\/div><\/div><div style=\"display:grid;grid-template-columns:repeat(auto-fit,minmax(min(240px,100%),1fr));gap:12px;padding:14px;border-radius:15px;background:#ffffff;border:1px solid #dce4ef\"><strong style=\"align-self:center;color:#263955;line-height:1.45\">Fen\u00eatre de contexte<\/strong><div style=\"display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px\"><div style=\"min-width:0;padding:10px;border-radius:11px;background:#eef4ff;color:#1746a2;overflow-wrap:anywhere\"><span style=\"display:block;margin-bottom:4px;font-size:10px;letter-spacing:.08em;text-transform:uppercase;font-weight:850\">Flash<\/span><span style=\"font-weight:720\">1 million de jetons<\/span><\/div><div style=\"min-width:0;padding:10px;border-radius:11px;background:#f2edff;color:#4d35a7;overflow-wrap:anywhere\"><span style=\"display:block;margin-bottom:4px;font-size:10px;letter-spacing:.08em;text-transform:uppercase;font-weight:850\">Pro<\/span><span style=\"font-weight:720\">1 million de jetons<\/span><\/div><\/div><\/div><div style=\"display:grid;grid-template-columns:repeat(auto-fit,minmax(min(240px,100%),1fr));gap:12px;padding:14px;border-radius:15px;background:#ffffff;border:1px solid #dce4ef\"><strong style=\"align-self:center;color:#263955;line-height:1.45\">Puissance maximale<\/strong><div style=\"display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px\"><div style=\"min-width:0;padding:10px;border-radius:11px;background:#eef4ff;color:#1746a2;overflow-wrap:anywhere\"><span style=\"display:block;margin-bottom:4px;font-size:10px;letter-spacing:.08em;text-transform:uppercase;font-weight:850\">Flash<\/span><span style=\"font-weight:720\">384K tokens<\/span><\/div><div style=\"min-width:0;padding:10px;border-radius:11px;background:#f2edff;color:#4d35a7;overflow-wrap:anywhere\"><span style=\"display:block;margin-bottom:4px;font-size:10px;letter-spacing:.08em;text-transform:uppercase;font-weight:850\">Pro<\/span><span style=\"font-weight:720\">384K tokens<\/span><\/div><\/div><\/div><div style=\"display:grid;grid-template-columns:repeat(auto-fit,minmax(min(240px,100%),1fr));gap:12px;padding:14px;border-radius:15px;background:#ffffff;border:1px solid #dce4ef\"><strong style=\"align-self:center;color:#263955;line-height:1.45\">Modes de pens\u00e9e<\/strong><div style=\"display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px\"><div style=\"min-width:0;padding:10px;border-radius:11px;background:#eef4ff;color:#1746a2;overflow-wrap:anywhere\"><span style=\"display:block;margin-bottom:4px;font-size:10px;letter-spacing:.08em;text-transform:uppercase;font-weight:850\">Flash<\/span><span style=\"font-weight:720\">Thinking and non-thinking<\/span><\/div><div style=\"min-width:0;padding:10px;border-radius:11px;background:#f2edff;color:#4d35a7;overflow-wrap:anywhere\"><span style=\"display:block;margin-bottom:4px;font-size:10px;letter-spacing:.08em;text-transform:uppercase;font-weight:850\">Pro<\/span><span style=\"font-weight:720\">Thinking and non-thinking<\/span><\/div><\/div><\/div><div style=\"display:grid;grid-template-columns:repeat(auto-fit,minmax(min(240px,100%),1fr));gap:12px;padding:14px;border-radius:15px;background:#ffffff;border:1px solid #dce4ef\"><strong style=\"align-self:center;color:#263955;line-height:1.45\">Official concurrency ceiling<\/strong><div style=\"display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px\"><div style=\"min-width:0;padding:10px;border-radius:11px;background:#eef4ff;color:#1746a2;overflow-wrap:anywhere\"><span style=\"display:block;margin-bottom:4px;font-size:10px;letter-spacing:.08em;text-transform:uppercase;font-weight:850\">Flash<\/span><span style=\"font-weight:720\">2,500<\/span><\/div><div style=\"min-width:0;padding:10px;border-radius:11px;background:#f2edff;color:#4d35a7;overflow-wrap:anywhere\"><span style=\"display:block;margin-bottom:4px;font-size:10px;letter-spacing:.08em;text-transform:uppercase;font-weight:850\">Pro<\/span><span style=\"font-weight:720\">500<\/span><\/div><\/div><\/div><div style=\"display:grid;grid-template-columns:repeat(auto-fit,minmax(min(240px,100%),1fr));gap:12px;padding:14px;border-radius:15px;background:#ffffff;border:1px solid #dce4ef\"><strong style=\"align-self:center;color:#263955;line-height:1.45\">Cache-miss input \/ 1M<\/strong><div style=\"display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px\"><div style=\"min-width:0;padding:10px;border-radius:11px;background:#eef4ff;color:#1746a2;overflow-wrap:anywhere\"><span style=\"display:block;margin-bottom:4px;font-size:10px;letter-spacing:.08em;text-transform:uppercase;font-weight:850\">Flash<\/span><span style=\"font-weight:720\">$0.14<\/span><\/div><div style=\"min-width:0;padding:10px;border-radius:11px;background:#f2edff;color:#4d35a7;overflow-wrap:anywhere\"><span style=\"display:block;margin-bottom:4px;font-size:10px;letter-spacing:.08em;text-transform:uppercase;font-weight:850\">Pro<\/span><span style=\"font-weight:720\">$0.435<\/span><\/div><\/div><\/div><div style=\"display:grid;grid-template-columns:repeat(auto-fit,minmax(min(240px,100%),1fr));gap:12px;padding:14px;border-radius:15px;background:#ffffff;border:1px solid #dce4ef\"><strong style=\"align-self:center;color:#263955;line-height:1.45\">Sortie \/ 1M<\/strong><div style=\"display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px\"><div style=\"min-width:0;padding:10px;border-radius:11px;background:#eef4ff;color:#1746a2;overflow-wrap:anywhere\"><span style=\"display:block;margin-bottom:4px;font-size:10px;letter-spacing:.08em;text-transform:uppercase;font-weight:850\">Flash<\/span><span style=\"font-weight:720\">$0.28<\/span><\/div><div style=\"min-width:0;padding:10px;border-radius:11px;background:#f2edff;color:#4d35a7;overflow-wrap:anywhere\"><span style=\"display:block;margin-bottom:4px;font-size:10px;letter-spacing:.08em;text-transform:uppercase;font-weight:850\">Pro<\/span><span style=\"font-weight:720\">$0.87<\/span><\/div><\/div><\/div><div style=\"display:grid;grid-template-columns:repeat(auto-fit,minmax(min(240px,100%),1fr));gap:12px;padding:14px;border-radius:15px;background:#ffffff;border:1px solid #dce4ef\"><strong style=\"align-self:center;color:#263955;line-height:1.45\">Our strongest observed advantage<\/strong><div style=\"display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px\"><div style=\"min-width:0;padding:10px;border-radius:11px;background:#eef4ff;color:#1746a2;overflow-wrap:anywhere\"><span style=\"display:block;margin-bottom:4px;font-size:10px;letter-spacing:.08em;text-transform:uppercase;font-weight:850\">Flash<\/span><span style=\"font-weight:720\">Faster coding run; lower token use<\/span><\/div><div style=\"min-width:0;padding:10px;border-radius:11px;background:#f2edff;color:#4d35a7;overflow-wrap:anywhere\"><span style=\"display:block;margin-bottom:4px;font-size:10px;letter-spacing:.08em;text-transform:uppercase;font-weight:850\">Pro<\/span><span style=\"font-weight:720\">Perfect strict-memo score<\/span><\/div><\/div><\/div><\/div>\n  <p style=\"margin:14px 2px 0;color:#5b687b;font-size:13px;line-height:1.6\">Official specifications and prices checked August 13, 2026; hands-on observations come from one run per task and are not official benchmarks.<\/p>\n<\/section>\n\n\n\n<section data-dsv4-visual=\"pro-flash-choice\" style=\"font-family:Inter,ui-sans-serif,system-ui,-apple-system,'Segoe UI',sans-serif;color:#17223b;box-sizing:border-box;max-width:1100px;margin:28px auto;padding:clamp(18px,3vw,24px);border-radius:22px;background:linear-gradient(135deg,#f1f6ff,#f8f3ff);border:1px solid #d5dcf1;box-sizing:border-box\">\n  <div style=\"display:grid;grid-template-columns:repeat(auto-fit,minmax(min(230px,100%),1fr));gap:16px\">\n    <article style=\"min-width:0;padding:20px;border-radius:18px;background:#ffffff;border:1px solid #d7dfed;box-shadow:0 8px 24px rgba(28,47,82,.07);box-sizing:border-box;border-left:5px solid #2864ff\"><span style=\"display:inline-block;margin:0 0 10px;font-size:12px;line-height:1.2;text-transform:uppercase;letter-spacing:.08em;color:#66758c;font-weight:850;color:#174ed3\">Lower cost + scale<\/span><h3 style=\"margin:0 0 10px;color:#1746a2\">Choose Flash when&#8230;<\/h3><p style=\"margin:0;line-height:1.65;color:#46536b\">You need inexpensive scale, routine code fixes, extraction, classification, or many parallel requests-and you can validate high-stakes arithmetic and format constraints.<\/p><\/article>\n    <article style=\"min-width:0;padding:20px;border-radius:18px;background:#ffffff;border:1px solid #d7dfed;box-shadow:0 8px 24px rgba(28,47,82,.07);box-sizing:border-box;border-left:5px solid #7657ef\"><span style=\"display:inline-block;margin:0 0 10px;font-size:12px;line-height:1.2;text-transform:uppercase;letter-spacing:.08em;color:#66758c;font-weight:850;color:#5d43c5\">Higher assurance<\/span><h3 style=\"margin:0 0 10px;color:#442b9a\">Choose Pro when&#8230;<\/h3><p style=\"margin:0;line-height:1.65;color:#46536b\">The output combines code, policy, finance, or many exact constraints, and the extra price is smaller than the cost of a subtle failure.<\/p><\/article>\n  <\/div>\n<\/section>\n\n\n\n<h2 id=\"hands-on-tests\" class=\"wp-block-heading\">Hands-on tests: coding, retrieval, and constraint following<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">We tested both API model IDs through the same Broly Anywhere OpenAI-compatible endpoint on August 13, 2026. Temperature was 0. Each scored result is one run per model and task. Wall-clock time includes gateway and upstream delay, so it is useful as an observation\u2014not a stable latency ranking.<\/p>\n\n\n\n<section data-dsv4-visual=\"hands-on-dashboard\" style=\"font-family:Inter,ui-sans-serif,system-ui,-apple-system,'Segoe UI',sans-serif;color:#17223b;box-sizing:border-box;max-width:1100px;margin:28px auto;padding:clamp(18px,3vw,24px);border-radius:22px;background:#f4f7fc;border:1px solid #d9e0ee;box-sizing:border-box\">\n  <div style=\"display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;margin-bottom:16px\"><div><span style=\"display:inline-block;margin:0 0 10px;font-size:12px;line-height:1.2;text-transform:uppercase;letter-spacing:.08em;color:#66758c;font-weight:850;color:#31527e\">One run per model and task<\/span><h3 style=\"margin:0;font-size:22px;color:#142b4f\">Hands-on scorecard<\/h3><\/div><span style=\"padding:7px 10px;border-radius:999px;background:#e4ecfa;color:#31527e;font-size:12px;font-weight:850\">Observed, not official<\/span><\/div>\n  <div style=\"display:grid;grid-template-columns:repeat(auto-fit,minmax(min(230px,100%),1fr));gap:16px\">\n    <article style=\"min-width:0;padding:20px;border-radius:18px;background:#ffffff;border:1px solid #d7dfed;box-shadow:0 8px 24px rgba(28,47,82,.07);box-sizing:border-box;border-top:5px solid #2864ff\"><span style=\"display:inline-block;margin:0 0 10px;font-size:12px;line-height:1.2;text-transform:uppercase;letter-spacing:.08em;color:#66758c;font-weight:850\">Codage agentique<\/span><div style=\"font-size:clamp(26px,4vw,33px);line-height:1.1;font-weight:900;color:#183f9d\">8\/8 <span style=\"color:#9aa7b8\">&#8226;<\/span> 8\/8<\/div><p style=\"margin:10px 0 0;line-height:1.55;color:#536178\">Pro and Flash both passed every fixed test.<\/p><\/article>\n    <article style=\"min-width:0;padding:20px;border-radius:18px;background:#ffffff;border:1px solid #d7dfed;box-shadow:0 8px 24px rgba(28,47,82,.07);box-sizing:border-box;border-top:5px solid #1ca078\"><span style=\"display:inline-block;margin:0 0 10px;font-size:12px;line-height:1.2;text-transform:uppercase;letter-spacing:.08em;color:#66758c;font-weight:850\">20.7K dossier<\/span><div style=\"font-size:clamp(26px,4vw,33px);line-height:1.1;font-weight:900;color:#14755a\">22\/22 <span style=\"color:#9aa7b8\">&#8226;<\/span> 22\/22<\/div><p style=\"margin:10px 0 0;line-height:1.55;color:#536178\">Both answers and all required record citations were correct.<\/p><\/article>\n    <article style=\"min-width:0;padding:20px;border-radius:18px;background:#ffffff;border:1px solid #d7dfed;box-shadow:0 8px 24px rgba(28,47,82,.07);box-sizing:border-box;border-top:5px solid #7657ef\"><span style=\"display:inline-block;margin:0 0 10px;font-size:12px;line-height:1.2;text-transform:uppercase;letter-spacing:.08em;color:#66758c;font-weight:850\">Strict memo<\/span><div style=\"font-size:clamp(26px,4vw,33px);line-height:1.1;font-weight:900;color:#5b3fc0\">12\/12 <span style=\"color:#9aa7b8\">&#8226;<\/span> 8\/12<\/div><p style=\"margin:10px 0 0;line-height:1.55;color:#536178\">Pro met every rule; Flash missed arithmetic and length constraints.<\/p><\/article>\n  <\/div>\n<\/section>\n\n\n\n<h3 class=\"wp-block-heading\">Test 1: agentic Python debugging<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The harness gave each model four tools\u2014list files, read a file, write a file, and run tests\u2014inside a small three-file Python pricing project. This is closer to an agent workflow than asking for a code snippet in chat.<\/p>\n\n\n\n<section data-dsv4-visual=\"prompt-card\" data-dsv4-prompt=\"agentic-coding\" style=\"font-family:Inter,ui-sans-serif,system-ui,-apple-system,'Segoe UI',sans-serif;color:#17223b;box-sizing:border-box;max-width:1100px;margin:24px auto 30px;padding:clamp(16px,3vw,22px);border-radius:22px;background:linear-gradient(145deg,#111d31,#182845);border:1px solid #2b4266;box-shadow:0 15px 36px rgba(16,31,54,.18);color:#eef4ff;box-sizing:border-box\">\n  <div style=\"display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;margin-bottom:13px\">\n    <div style=\"min-width:0\"><span style=\"display:inline-block;margin:0 0 7px;padding:5px 9px;border-radius:999px;background:#2a4167;color:#cfe0ff;font-size:11px;font-weight:850;letter-spacing:.08em;text-transform:uppercase\">Test 1 \/ Agentic coding<\/span><h4 style=\"margin:0;color:#ffffff;font-size:19px;line-height:1.35\">Debug, patch, and verify a Python pricing project<\/h4><\/div>\n    <button type=\"button\" data-copy-prompt aria-label=\"Copy Debug, patch, and verify a Python pricing project\" style=\"appearance:none;border:1px solid #b8cced;border-radius:11px;padding:10px 15px;background:#f7fbff;color:#183f72;font:inherit;font-weight:850;cursor:pointer;box-shadow:0 5px 16px rgba(0,0,0,.15)\" onclick=\"(async function(button){const card=button.closest('[data-dsv4-prompt]');const box=card.querySelector('textarea');const status=card.querySelector('[data-copy-status]');const fallback=function(){box.focus();box.select();box.setSelectionRange(0,box.value.length);status.textContent='Automatic copy was blocked. Prompt selected - press Ctrl\/Cmd+C.';};try{if(!navigator.clipboard||!navigator.clipboard.writeText)throw new Error('Clipboard unavailable');let timer;await Promise.race([navigator.clipboard.writeText(box.value),new Promise(function(_,reject){timer=setTimeout(function(){reject(new Error('Clipboard timeout'));},1200);})]);clearTimeout(timer);status.textContent='Prompt copied.';}catch(error){fallback();}})(this)\"><span aria-hidden=\"true\">&#10697;<\/span> Copier l'invite<\/button>\n  <\/div>\n  <textarea aria-label=\"Debug, patch, and verify a Python pricing project\" spellcheck=\"false\" style=\"display:block;width:100%;height:190px;min-height:150px;max-height:520px;resize:vertical;padding:15px;border:1px solid #3d5375;border-radius:14px;background:#0b1424;color:#e8f0ff;font:13px\/1.62 ui-monospace,SFMono-Regular,Consolas,'Liberation Mono',monospace;white-space:pre-wrap;overflow:auto;overflow-wrap:anywhere;box-sizing:border-box\">You are debugging a small Python order-pricing project. Use the available tools to inspect the files, fix the implementation, and run the tests. Requirements: (1) apply percent_discount first, then subtract fixed_discount; (2) reject quantity &lt;= 0 with ValueError(&#8216;quantity must be positive&#8217;); (3) round monetary results to two decimal places with ROUND_HALF_UP; (4) preserve Decimal return values; (5) do not modify tests or add dependencies. Keep the change minimal. Do not claim success until you run the test suite. When finished, summarize the change and the actual test result.<\/textarea>\n  <div style=\"display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;margin-top:10px;color:#aebdd3;font-size:12px;line-height:1.45\"><span>Editable and reusable &#8211; review inputs before running.<\/span><span data-copy-status role=\"status\" aria-live=\"polite\">Ready to copy<\/span><\/div>\n<\/section>\n\n\n\n<p class=\"wp-block-paragraph\">Both models followed the same six-call path, edited only the implementation, and produced <code>8 passed<\/code>. Flash completed this run in 47.378 seconds versus Pro\u2019s 95.228 seconds and used fewer returned tokens. There was no quality winner here. For another code-focused perspective, see our <a href=\"https:\/\/www.glbgpt.com\/hub\/deepseek-vs-chatgpt-which-ai-tool-generates-better-python-code\/\">DeepSeek vs ChatGPT Python coding test<\/a>.<\/p>\n\n\n\n<figure data-dsv4-visual=\"evidence-figure\" style=\"font-family:Inter,ui-sans-serif,system-ui,-apple-system,'Segoe UI',sans-serif;color:#17223b;box-sizing:border-box;max-width:1100px;margin:30px auto;padding:16px;border-radius:22px;background:#ffffff;border:1px solid #d9e1ee;border-top:5px solid #2864ff;box-shadow:0 12px 34px rgba(25,39,67,.09);box-sizing:border-box\"><div style=\"display:inline-flex;align-items:center;margin:0 0 12px;padding:6px 10px;border-radius:999px;background:#f1f5fb;color:#41526d;font-size:12px;font-weight:850;letter-spacing:.06em;text-transform:uppercase\">Hands-on test 1 \/ Agentic coding<\/div><img loading=\"lazy\" decoding=\"async\" style=\"display:block;width:100%;height:auto;border-radius:16px;border:1px solid #d7deea;background:#f4f7fb\" src=\"https:\/\/static.futureshareai.com\/glb_features\/deepseek-v4-pro-hands-on-agentic-coding.webp\" alt=\"DeepSeek V4 Pro and Flash results on an agentic Python debugging task\" width=\"1280\" height=\"853\"><figcaption style=\"margin:11px 3px 2px;font-size:14px;line-height:1.62;color:#59677d\">Both models passed 8\/8 fixed tests in one run. Timing includes gateway and upstream latency and is not an official benchmark.<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Test 2: approximately 20.7K-token dossier retrieval<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">We attached a dossier containing more than 180 records, repeated distractors, stale drafts, and ten scattered facts. The model had to answer in an exact ten-line format and cite a record for every answer.<\/p>\n\n\n\n<section data-dsv4-visual=\"prompt-card\" data-dsv4-prompt=\"dossier-retrieval\" style=\"font-family:Inter,ui-sans-serif,system-ui,-apple-system,'Segoe UI',sans-serif;color:#17223b;box-sizing:border-box;max-width:1100px;margin:24px auto 30px;padding:clamp(16px,3vw,22px);border-radius:22px;background:linear-gradient(145deg,#111d31,#182845);border:1px solid #2b4266;box-shadow:0 15px 36px rgba(16,31,54,.18);color:#eef4ff;box-sizing:border-box\">\n  <div style=\"display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;margin-bottom:13px\">\n    <div style=\"min-width:0\"><span style=\"display:inline-block;margin:0 0 7px;padding:5px 9px;border-radius:999px;background:#2a4167;color:#cfe0ff;font-size:11px;font-weight:850;letter-spacing:.08em;text-transform:uppercase\">Test 2 \/ Retrieval<\/span><h4 style=\"margin:0;color:#ffffff;font-size:19px;line-height:1.35\">Answer a noisy dossier with exact citations<\/h4><\/div>\n    <button type=\"button\" data-copy-prompt aria-label=\"Copy Answer a noisy dossier with exact citations\" style=\"appearance:none;border:1px solid #b8cced;border-radius:11px;padding:10px 15px;background:#f7fbff;color:#183f72;font:inherit;font-weight:850;cursor:pointer;box-shadow:0 5px 16px rgba(0,0,0,.15)\" onclick=\"(async function(button){const card=button.closest('[data-dsv4-prompt]');const box=card.querySelector('textarea');const status=card.querySelector('[data-copy-status]');const fallback=function(){box.focus();box.select();box.setSelectionRange(0,box.value.length);status.textContent='Automatic copy was blocked. Prompt selected - press Ctrl\/Cmd+C.';};try{if(!navigator.clipboard||!navigator.clipboard.writeText)throw new Error('Clipboard unavailable');let timer;await Promise.race([navigator.clipboard.writeText(box.value),new Promise(function(_,reject){timer=setTimeout(function(){reject(new Error('Clipboard timeout'));},1200);})]);clearTimeout(timer);status.textContent='Prompt copied.';}catch(error){fallback();}})(this)\"><span aria-hidden=\"true\">&#10697;<\/span> Copier l'invite<\/button>\n  <\/div>\n  <textarea aria-label=\"Answer a noisy dossier with exact citations\" spellcheck=\"false\" style=\"display:block;width:100%;height:155px;min-height:150px;max-height:520px;resize:vertical;padding:15px;border:1px solid #3d5375;border-radius:14px;background:#0b1424;color:#e8f0ff;font:13px\/1.62 ui-monospace,SFMono-Regular,Consolas,'Liberation Mono',monospace;white-space:pre-wrap;overflow:auto;overflow-wrap:anywhere;box-sizing:border-box\">Use only the dossier below. Later signed\/final records override drafts or rehearsals. Answer exactly 10 lines in the format `Qn | answer | [REC-####]`. Do not add an introduction, conclusion, or outside facts. If evidence is missing, write UNKNOWN.<\/textarea>\n  <div style=\"display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;margin-top:10px;color:#aebdd3;font-size:12px;line-height:1.45\"><span>Editable and reusable &#8211; review inputs before running.<\/span><span data-copy-status role=\"status\" aria-live=\"polite\">Ready to copy<\/span><\/div>\n<\/section>\n\n\n\n<p class=\"wp-block-paragraph\">Both models scored 22\/22: ten correct answers, ten correct citations, and two format points. Pro completed this run in 10.396 seconds and Flash in 21.737 seconds. The actual prompt usage was about 20.7K tokens. That makes it a useful mid-length retrieval test, but it does <em>pas<\/em> validate the full 1M-token window.<\/p>\n\n\n\n<figure data-dsv4-visual=\"evidence-figure\" style=\"font-family:Inter,ui-sans-serif,system-ui,-apple-system,'Segoe UI',sans-serif;color:#17223b;box-sizing:border-box;max-width:1100px;margin:30px auto;padding:16px;border-radius:22px;background:#ffffff;border:1px solid #d9e1ee;border-top:5px solid #1ca078;box-shadow:0 12px 34px rgba(25,39,67,.09);box-sizing:border-box\"><div style=\"display:inline-flex;align-items:center;margin:0 0 12px;padding:6px 10px;border-radius:999px;background:#f1f5fb;color:#41526d;font-size:12px;font-weight:850;letter-spacing:.06em;text-transform:uppercase\">Hands-on test 2 \/ Retrieval<\/div><img loading=\"lazy\" decoding=\"async\" style=\"display:block;width:100%;height:auto;border-radius:16px;border:1px solid #d7deea;background:#f4f7fb\" src=\"https:\/\/static.futureshareai.com\/glb_features\/deepseek-v4-pro-hands-on-long-context.webp\" alt=\"DeepSeek V4 Pro and Flash results on a 20K-token dossier retrieval task\" width=\"1280\" height=\"853\"><figcaption style=\"margin:11px 3px 2px;font-size:14px;line-height:1.62;color:#59677d\">Both models scored 22\/22. Actual prompt usage was about 20.7K tokens; this was not a 1M-context test.<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Test 3: a strict launch decision memo<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">This task combined a 120\u2013180 word summary, an exact four-row table, fixed risk and unknown counts, a short decision, valid JSON, and a first-year cost calculation from finance, legal, engineering, sales, support, and security notes.<\/p>\n\n\n\n<section data-dsv4-visual=\"prompt-card\" data-dsv4-prompt=\"launch-memo\" style=\"font-family:Inter,ui-sans-serif,system-ui,-apple-system,'Segoe UI',sans-serif;color:#17223b;box-sizing:border-box;max-width:1100px;margin:24px auto 30px;padding:clamp(16px,3vw,22px);border-radius:22px;background:linear-gradient(145deg,#111d31,#182845);border:1px solid #2b4266;box-shadow:0 15px 36px rgba(16,31,54,.18);color:#eef4ff;box-sizing:border-box\">\n  <div style=\"display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;margin-bottom:13px\">\n    <div style=\"min-width:0\"><span style=\"display:inline-block;margin:0 0 7px;padding:5px 9px;border-radius:999px;background:#2a4167;color:#cfe0ff;font-size:11px;font-weight:850;letter-spacing:.08em;text-transform:uppercase\">Test 3 \/ Constraint following<\/span><h4 style=\"margin:0;color:#ffffff;font-size:19px;line-height:1.35\">Produce a launch memo with arithmetic and strict output rules<\/h4><\/div>\n    <button type=\"button\" data-copy-prompt aria-label=\"Copy Produce a launch memo with arithmetic and strict output rules\" style=\"appearance:none;border:1px solid #b8cced;border-radius:11px;padding:10px 15px;background:#f7fbff;color:#183f72;font:inherit;font-weight:850;cursor:pointer;box-shadow:0 5px 16px rgba(0,0,0,.15)\" onclick=\"(async function(button){const card=button.closest('[data-dsv4-prompt]');const box=card.querySelector('textarea');const status=card.querySelector('[data-copy-status]');const fallback=function(){box.focus();box.select();box.setSelectionRange(0,box.value.length);status.textContent='Automatic copy was blocked. Prompt selected - press Ctrl\/Cmd+C.';};try{if(!navigator.clipboard||!navigator.clipboard.writeText)throw new Error('Clipboard unavailable');let timer;await Promise.race([navigator.clipboard.writeText(box.value),new Promise(function(_,reject){timer=setTimeout(function(){reject(new Error('Clipboard timeout'));},1200);})]);clearTimeout(timer);status.textContent='Prompt copied.';}catch(error){fallback();}})(this)\"><span aria-hidden=\"true\">&#10697;<\/span> Copier l'invite<\/button>\n  <\/div>\n  <textarea aria-label=\"Produce a launch memo with arithmetic and strict output rules\" spellcheck=\"false\" style=\"display:block;width:100%;height:390px;min-height:150px;max-height:520px;resize:vertical;padding:15px;border:1px solid #3d5375;border-radius:14px;background:#0b1424;color:#e8f0ff;font:13px\/1.62 ui-monospace,SFMono-Regular,Consolas,'Liberation Mono',monospace;white-space:pre-wrap;overflow:auto;overflow-wrap:anywhere;box-sizing:border-box\">You are advising a launch committee. Use only the material below. Produce:\n1. `EXECUTIVE SUMMARY` of 120-180 words.\n2. `FACT TABLE` with exactly four Markdown rows after the header: First-year cost, Approved budget, Budget variance, Legal status.\n3. `RISKS` with exactly three numbered items.\n4. `UNKNOWNS` with exactly two bullet items.\n5. `RECOMMENDATION` containing exactly one of GO, NO-GO, or CONDITIONAL GO and no more than 45 words.\n6. `JSON` with a valid JSON object using exactly these keys: `decision`, `first_year_cost_usd`, `budget_variance_usd`, `legal_approved`, `blocking_unknowns`. Values must agree with the prose. Do not use code comments. Do not invent missing facts.\n\nMATERIAL\n[FIN-1] Finance approved a first-year budget ceiling of $210,000.\n[FIN-2] Vendor licence is $132,000 for year one. Implementation is a one-time $46,500. Required support is $3,200 per month for 12 months.\n[PROD-1] Product forecasts $390,000 incremental annual gross margin if all enterprise customers adopt. This forecast has not been validated by Finance.\n[ENG-1] Load testing passed at 2x forecast traffic. The disaster-recovery exercise has not been run with the new vendor.\n[LEGAL-1] Counsel approved the standard data-processing addendum, but the cross-border transfer schedule remains under review. Legal has not issued final launch approval.\n[SALES-1] Two customers signed non-binding letters of intent. No purchase order exists.\n[SUPPORT-1] Support can cover the launch only if the vendor delivers the escalation runbook at least five business days before release.\n[SEC-1] Security review found no critical vulnerabilities. One medium issue is accepted until Q4.\n\nCalculate cost and variance yourself. Treat unvalidated forecasts and non-binding letters as such. The recommendation must be consistent with the unresolved legal schedule and operational prerequisites.<\/textarea>\n  <div style=\"display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;margin-top:10px;color:#aebdd3;font-size:12px;line-height:1.45\"><span>Editable and reusable &#8211; review inputs before running.<\/span><span data-copy-status role=\"status\" aria-live=\"polite\">Ready to copy<\/span><\/div>\n<\/section>\n\n\n\n<p class=\"wp-block-paragraph\">At a 2,048 completion-token limit, both models used the available completion budget on returned reasoning and produced no visible answer. We preserved those records, then reran the unchanged prompt with an 8,192-token limit. Pro scored 12\/12. Flash scored 8\/12 because it reported $217,100 instead of $216,900, carried the $200 error into the variance, and wrote a 94-word summary instead of the required 120\u2013180 words.<\/p>\n\n\n\n<figure data-dsv4-visual=\"evidence-figure\" style=\"font-family:Inter,ui-sans-serif,system-ui,-apple-system,'Segoe UI',sans-serif;color:#17223b;box-sizing:border-box;max-width:1100px;margin:30px auto;padding:16px;border-radius:22px;background:#ffffff;border:1px solid #d9e1ee;border-top:5px solid #7657ef;box-shadow:0 12px 34px rgba(25,39,67,.09);box-sizing:border-box\"><div style=\"display:inline-flex;align-items:center;margin:0 0 12px;padding:6px 10px;border-radius:999px;background:#f1f5fb;color:#41526d;font-size:12px;font-weight:850;letter-spacing:.06em;text-transform:uppercase\">Hands-on test 3 \/ Constraint following<\/div><img loading=\"lazy\" decoding=\"async\" style=\"display:block;width:100%;height:auto;border-radius:16px;border:1px solid #d7deea;background:#f4f7fb\" src=\"https:\/\/static.futureshareai.com\/glb_features\/deepseek-v4-pro-hands-on-decision-memo.webp\" alt=\"DeepSeek V4 Pro and Flash results on a constrained decision memo\" width=\"1280\" height=\"853\"><figcaption style=\"margin:11px 3px 2px;font-size:14px;line-height:1.62;color:#59677d\">Pro scored 12\/12 and Flash 8\/12 after a shared 2,048-token truncation and unchanged-prompt 8,192-token rerun.<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The lesson is specific, not universal: Flash was already excellent at the coding and retrieval tasks, while Pro was safer on the densest combination of arithmetic, structure, and policy constraints. If your workflow relies on an agent shell, our <a href=\"https:\/\/www.glbgpt.com\/hub\/openclaw-vs-claude-code-vs-opencode\/\">OpenClaw vs Claude Code vs OpenCode comparison<\/a> helps match the model to the surrounding tool.<\/p>\n\n\n\n<h2 id=\"official-benchmarks\" class=\"wp-block-heading\">DeepSeek V4 benchmarks: what the official data proves<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The safest benchmark source is the <a href=\"https:\/\/arxiv.org\/abs\/2606.19348\">DeepSeek V4 technical report<\/a>, but its tables and charts describe V4 Preview models. They are useful for understanding the architecture\u2019s intended capability and test setup; they are not independent scores for the dated Pro-0813 API release.<\/p>\n\n\n\n<section data-dsv4-visual=\"benchmark-boundary\" style=\"font-family:Inter,ui-sans-serif,system-ui,-apple-system,'Segoe UI',sans-serif;color:#17223b;box-sizing:border-box;max-width:1100px;margin:28px auto;padding:clamp(18px,3vw,24px);border-radius:22px;background:linear-gradient(135deg,#fff8e5,#fffdf6);border:1px solid #ead8a6;box-sizing:border-box\">\n  <div style=\"display:flex;align-items:center;gap:11px;margin-bottom:16px\"><span aria-hidden=\"true\" style=\"display:inline-grid;place-items:center;width:38px;height:38px;border-radius:12px;background:#ffe3a3;color:#7a4f00;font-size:21px;font-weight:900\">!<\/span><div><span style=\"display:inline-block;margin:0 0 10px;font-size:12px;line-height:1.2;text-transform:uppercase;letter-spacing:.08em;color:#66758c;font-weight:850;color:#87621d;margin-bottom:3px\">Limites de la preuve<\/span><h3 style=\"margin:0;color:#503a12;font-size:21px\">Preview scores are not Pro-0813 scores<\/h3><\/div><\/div>\n  <div style=\"display:grid;grid-template-columns:repeat(auto-fit,minmax(min(230px,100%),1fr));gap:16px\">\n    <article style=\"min-width:0;padding:20px;border-radius:18px;background:#ffffff;border:1px solid #d7dfed;box-shadow:0 8px 24px rgba(28,47,82,.07);box-sizing:border-box;border-color:#e7d7ad\"><span style=\"display:inline-block;margin:0 0 10px;font-size:12px;line-height:1.2;text-transform:uppercase;letter-spacing:.08em;color:#66758c;font-weight:850;color:#87621d\">Official report<\/span><div style=\"font-size:27px;font-weight:900;color:#5d420f\">V4 Preview<\/div><p style=\"margin:8px 0 0;color:#64583f;line-height:1.55\">Architecture and benchmark evidence from DeepSeek.<\/p><\/article>\n    <article style=\"min-width:0;padding:20px;border-radius:18px;background:#ffffff;border:1px solid #d7dfed;box-shadow:0 8px 24px rgba(28,47,82,.07);box-sizing:border-box;border-color:#e7d7ad\"><span style=\"display:inline-block;margin:0 0 10px;font-size:12px;line-height:1.2;text-transform:uppercase;letter-spacing:.08em;color:#66758c;font-weight:850;color:#87621d\">Current API<\/span><div style=\"font-size:27px;font-weight:900;color:#5d420f\">0813 \/ 0731<\/div><p style=\"margin:8px 0 0;color:#64583f;line-height:1.55\">Dated production versions listed in API docs.<\/p><\/article>\n    <article style=\"min-width:0;padding:20px;border-radius:18px;background:#ffffff;border:1px solid #d7dfed;box-shadow:0 8px 24px rgba(28,47,82,.07);box-sizing:border-box;border-color:#e5bf64;background:#fff7df\"><span style=\"display:inline-block;margin:0 0 10px;font-size:12px;line-height:1.2;text-transform:uppercase;letter-spacing:.08em;color:#66758c;font-weight:850;color:#87621d\">Do not merge<\/span><div style=\"font-size:27px;font-weight:900;color:#8b5c00\">Preview &ne; Pro<\/div><p style=\"margin:8px 0 0;color:#64583f;line-height:1.55\">Preview scores cannot be relabeled as Pro-0813 scores.<\/p><\/article>\n  <\/div>\n<\/section>\n\n\n\n<p class=\"wp-block-paragraph\">The July 31 Flash update also publishes agent results and names the harness, settings, and Codex support. Those details matter because cross-vendor leaderboards can change with scaffolding, reasoning budget, tool definitions, and retry rules. A result without its harness is not enough to declare an unconditional winner.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For the same reason, our three tasks sit beside the official evidence instead of replacing it. They tell you what happened under one disclosed setup. If you are comparing agent products rather than just model APIs, our <a href=\"https:\/\/www.glbgpt.com\/hub\/codex-vs-claude-code\/\">Codex vs Claude Code guide<\/a> explains why the surrounding workflow can change the user experience.<\/p>\n\n\n\n<h2 id=\"api-pricing\" class=\"wp-block-heading\">DeepSeek V4 API pricing<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">DeepSeek\u2019s API pricing is unusually aggressive at launch. The table below reproduces the official per-million-token figures checked on August 13, 2026. The official page also warns that prices will rise significantly in the future, so treat these as dated launch-era numbers.<\/p>\n\n\n\n<section data-dsv4-visual=\"pricing-card-table\" data-dsv4-table=\"api-pricing\" aria-label=\"DeepSeek V4 API pricing per million tokens\" style=\"font-family:Inter,ui-sans-serif,system-ui,-apple-system,'Segoe UI',sans-serif;color:#17223b;box-sizing:border-box;max-width:1100px;margin:28px auto;padding:clamp(18px,3vw,24px);border-radius:22px;background:linear-gradient(135deg,#edfbf6,#f6f8ff);border:1px solid #cfe4dc;box-sizing:border-box\">\n  <div style=\"display:flex;flex-wrap:wrap;align-items:end;justify-content:space-between;gap:10px;margin-bottom:16px\"><div><span style=\"display:inline-block;margin:0 0 10px;font-size:12px;line-height:1.2;text-transform:uppercase;letter-spacing:.08em;color:#66758c;font-weight:850;color:#26755c\">Prix officiel de l'API<\/span><h3 style=\"margin:0;font-size:22px;color:#164d3e\">Price per 1M tokens<\/h3><\/div><span style=\"padding:7px 10px;border-radius:999px;background:#dff5ed;color:#176349;font-size:12px;font-weight:850\">Checked Aug 13, 2026<\/span><\/div>\n  <div style=\"display:grid;gap:11px\"><article style=\"display:grid;grid-template-columns:repeat(auto-fit,minmax(min(190px,100%),1fr));gap:10px;padding:15px;border-radius:16px;background:#ffffff;border:1px solid #d8e7e2;box-sizing:border-box\"><strong style=\"align-self:center;color:#2f4850\">Entr\u00e9e avec acc\u00e8s au cache<\/strong><div style=\"display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px\"><div style=\"padding:10px;border-radius:11px;background:#eaf2ff;color:#1746a2;min-width:0\"><span style=\"display:block;font-size:10px;font-weight:850;letter-spacing:.07em;text-transform:uppercase\">Flash<\/span><strong style=\"display:block;font-size:clamp(11px,3vw,18px);letter-spacing:-.025em;white-space:nowrap\">$0.0028<\/strong><\/div><div style=\"padding:10px;border-radius:11px;background:#f0ebff;color:#4d35a7;min-width:0\"><span style=\"display:block;font-size:10px;font-weight:850;letter-spacing:.07em;text-transform:uppercase\">Pro<\/span><strong style=\"display:block;font-size:clamp(11px,3vw,18px);letter-spacing:-.025em;white-space:nowrap\">$0.003625<\/strong><\/div><div style=\"padding:10px;border-radius:11px;background:#eef8f4;color:#176349;min-width:0\"><span style=\"display:block;font-size:10px;font-weight:850;letter-spacing:.07em;text-transform:uppercase\">Ratio<\/span><strong style=\"display:block;font-size:clamp(11px,3vw,18px);letter-spacing:-.015em;white-space:nowrap\">1.29&times;<\/strong><\/div><\/div><\/article><article style=\"display:grid;grid-template-columns:repeat(auto-fit,minmax(min(190px,100%),1fr));gap:10px;padding:15px;border-radius:16px;background:#ffffff;border:1px solid #d8e7e2;box-sizing:border-box\"><strong style=\"align-self:center;color:#2f4850\">Entr\u00e9e \u00ab \u00e9chec de cache \u00bb<\/strong><div style=\"display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px\"><div style=\"padding:10px;border-radius:11px;background:#eaf2ff;color:#1746a2;min-width:0\"><span style=\"display:block;font-size:10px;font-weight:850;letter-spacing:.07em;text-transform:uppercase\">Flash<\/span><strong style=\"display:block;font-size:clamp(11px,3vw,18px);letter-spacing:-.025em;white-space:nowrap\">$0.14<\/strong><\/div><div style=\"padding:10px;border-radius:11px;background:#f0ebff;color:#4d35a7;min-width:0\"><span style=\"display:block;font-size:10px;font-weight:850;letter-spacing:.07em;text-transform:uppercase\">Pro<\/span><strong style=\"display:block;font-size:clamp(11px,3vw,18px);letter-spacing:-.025em;white-space:nowrap\">$0.435<\/strong><\/div><div style=\"padding:10px;border-radius:11px;background:#eef8f4;color:#176349;min-width:0\"><span style=\"display:block;font-size:10px;font-weight:850;letter-spacing:.07em;text-transform:uppercase\">Ratio<\/span><strong style=\"display:block;font-size:clamp(11px,3vw,18px);letter-spacing:-.015em;white-space:nowrap\">3.11&times;<\/strong><\/div><\/div><\/article><article style=\"display:grid;grid-template-columns:repeat(auto-fit,minmax(min(190px,100%),1fr));gap:10px;padding:15px;border-radius:16px;background:#ffffff;border:1px solid #d8e7e2;box-sizing:border-box\"><strong style=\"align-self:center;color:#2f4850\">Sortie<\/strong><div style=\"display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px\"><div style=\"padding:10px;border-radius:11px;background:#eaf2ff;color:#1746a2;min-width:0\"><span style=\"display:block;font-size:10px;font-weight:850;letter-spacing:.07em;text-transform:uppercase\">Flash<\/span><strong style=\"display:block;font-size:clamp(11px,3vw,18px);letter-spacing:-.025em;white-space:nowrap\">$0.28<\/strong><\/div><div style=\"padding:10px;border-radius:11px;background:#f0ebff;color:#4d35a7;min-width:0\"><span style=\"display:block;font-size:10px;font-weight:850;letter-spacing:.07em;text-transform:uppercase\">Pro<\/span><strong style=\"display:block;font-size:clamp(11px,3vw,18px);letter-spacing:-.025em;white-space:nowrap\">$0.87<\/strong><\/div><div style=\"padding:10px;border-radius:11px;background:#eef8f4;color:#176349;min-width:0\"><span style=\"display:block;font-size:10px;font-weight:850;letter-spacing:.07em;text-transform:uppercase\">Ratio<\/span><strong style=\"display:block;font-size:clamp(11px,3vw,18px);letter-spacing:-.015em;white-space:nowrap\">3.11&times;<\/strong><\/div><\/div><\/article><\/div>\n<\/section>\n\n\n\n<p class=\"wp-block-paragraph\">A simple uncached workload with 10 million input tokens and 2 million output tokens would be $1.96 on Flash and $6.09 on Pro at these rates. That illustration excludes cache hits, provider markups, retries, and any later price change. Teams comparing vendors should use one token mix and billing basis; our <a href=\"https:\/\/www.glbgpt.com\/hub\/claude-opus-4-6-api-pricing\/\">Claude Opus 4.6 API pricing guide<\/a> shows why input, output, and caching need separate rows.<\/p>\n\n\n\n<aside data-dsv4-visual=\"pricing-note\" style=\"font-family:Inter,ui-sans-serif,system-ui,-apple-system,'Segoe UI',sans-serif;color:#17223b;box-sizing:border-box;max-width:1100px;margin:20px auto;padding:17px 19px;border-radius:16px;background:#fff8e8;border:1px solid #efd99e;border-left:6px solid #e3a21a;box-sizing:border-box\"><div style=\"display:flex;align-items:flex-start;gap:12px\"><span aria-hidden=\"true\" style=\"display:inline-grid;place-items:center;flex:0 0 30px;width:30px;height:30px;border-radius:10px;background:#ffe5a6;color:#7b5100;font-weight:900\">!<\/span><div style=\"line-height:1.65;color:#5e4d2b\"><strong style=\"color:#44340f\">Price check:<\/strong> refresh the official pricing page immediately before publishing or budgeting. DeepSeek explicitly signals that the present prices are temporary.<\/div><\/div><\/aside>\n\n\n\n<h2 id=\"context-and-limits\" class=\"wp-block-heading\">What the 1M context window means\u2014and where the limits are<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A 1M-token context window is capacity, not a promise of perfect recall at every position. It gives the API room for very large repositories, document collections, research packets, or agent histories. The quality question is whether the model can retrieve the right detail after relevant evidence is buried among hundreds of thousands of distracting tokens.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">DeepSeek\u2019s Preview report includes a multi-round coreference resolution (MRCR) chart from 8K to 1M input tokens. The curve stays strong at shorter lengths but declines after 128K. That is normal evidence of a hard long-context problem, and it is why \u201csupports 1M\u201d should never be translated into \u201clossless at 1M.\u201d<\/p>\n\n\n\n<figure data-dsv4-visual=\"evidence-figure\" style=\"font-family:Inter,ui-sans-serif,system-ui,-apple-system,'Segoe UI',sans-serif;color:#17223b;box-sizing:border-box;max-width:1100px;margin:30px auto;padding:16px;border-radius:22px;background:#ffffff;border:1px solid #d9e1ee;border-top:5px solid #e3a21a;box-shadow:0 12px 34px rgba(25,39,67,.09);box-sizing:border-box\"><div style=\"display:inline-flex;align-items:center;margin:0 0 12px;padding:6px 10px;border-radius:999px;background:#f1f5fb;color:#41526d;font-size:12px;font-weight:850;letter-spacing:.06em;text-transform:uppercase\">Preview benchmark boundary<\/div><img loading=\"lazy\" decoding=\"async\" style=\"display:block;width:100%;height:auto;border-radius:16px;border:1px solid #d7deea;background:#f4f7fb\" src=\"https:\/\/static.futureshareai.com\/glb_features\/deepseek-v4-preview-mrcr-1m-context.webp\" alt=\"DeepSeek V4 Preview MRCR retrieval performance from 8K to 1M input tokens\" width=\"1280\" height=\"889\"><figcaption style=\"margin:11px 3px 2px;font-size:14px;line-height:1.62;color:#59677d\">Figure 9 from the DeepSeek V4 Preview technical report. It shows Preview retrieval behavior and is not an independent Pro-0813 result.<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The API surface has separate limitations. DeepSeek\u2019s <a href=\"https:\/\/api-docs.deepseek.com\/guides\/responses_api\">Responses API guide<\/a> describes a stateless implementation: features such as <code>previous_response_id<\/code>, conversations, store, and background are unsupported. Image and file inputs are also unsupported, so you need to extract text or build the state layer outside the model.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Le <a href=\"https:\/\/api-docs.deepseek.com\/guides\/anthropic_api\">Anthropic-compatible API table<\/a> likewise marks image and document message variants as not supported. Compatibility therefore means familiar request shapes and tooling\u2014not feature-for-feature parity with every Anthropic model or client.<\/p>\n\n\n\n<figure data-dsv4-visual=\"evidence-figure\" style=\"font-family:Inter,ui-sans-serif,system-ui,-apple-system,'Segoe UI',sans-serif;color:#17223b;box-sizing:border-box;max-width:1100px;margin:30px auto;padding:16px;border-radius:22px;background:#ffffff;border:1px solid #d9e1ee;border-top:5px solid #df6b57;box-shadow:0 12px 34px rgba(25,39,67,.09);box-sizing:border-box\"><div style=\"display:inline-flex;align-items:center;margin:0 0 12px;padding:6px 10px;border-radius:999px;background:#f1f5fb;color:#41526d;font-size:12px;font-weight:850;letter-spacing:.06em;text-transform:uppercase\">Official API limitation<\/div><img loading=\"lazy\" decoding=\"async\" style=\"display:block;width:100%;height:auto;border-radius:16px;border:1px solid #d7deea;background:#f4f7fb\" src=\"https:\/\/static.futureshareai.com\/glb_features\/deepseek-v4-anthropic-input-limitations.webp\" alt=\"DeepSeek Anthropic API compatibility table showing unsupported image and document inputs\" width=\"1280\" height=\"613\"><figcaption style=\"margin:11px 3px 2px;font-size:14px;line-height:1.62;color:#59677d\">The official Message Fields table marks image and document content variants as Not Supported.<\/figcaption><\/figure>\n\n\n\n<h2 id=\"how-to-try\" class=\"wp-block-heading\">How to try DeepSeek V4 Pro and Flash<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">You have three practical routes. Choose based on whether you want a quick chat, production API control, or a multi-model workspace.<\/p>\n\n\n\n<section data-dsv4-visual=\"access-flow\" style=\"font-family:Inter,ui-sans-serif,system-ui,-apple-system,'Segoe UI',sans-serif;color:#17223b;box-sizing:border-box;max-width:1100px;margin:28px auto;padding:clamp(18px,3vw,24px);border-radius:22px;background:#eef8f4;border:1px solid #cde6dc;box-sizing:border-box\">\n  <div style=\"display:flex;flex-wrap:wrap;align-items:end;justify-content:space-between;gap:10px;margin-bottom:16px\"><div><span style=\"display:inline-block;margin:0 0 10px;font-size:12px;line-height:1.2;text-transform:uppercase;letter-spacing:.08em;color:#66758c;font-weight:850;color:#26755c\">Three practical routes<\/span><h3 style=\"margin:0;color:#174f40;font-size:22px\">Choose your access path<\/h3><\/div><span style=\"color:#347461;font-size:13px;font-weight:800\">No single route fits every workflow<\/span><\/div>\n  <div style=\"display:grid;grid-template-columns:repeat(auto-fit,minmax(min(230px,100%),1fr));gap:16px\">\n    <article style=\"min-width:0;padding:20px;border-radius:18px;background:#ffffff;border:1px solid #d7dfed;box-shadow:0 8px 24px rgba(28,47,82,.07);box-sizing:border-box;border-top:5px solid #1ca078\"><span style=\"display:inline-block;margin:0 0 10px;font-size:12px;line-height:1.2;text-transform:uppercase;letter-spacing:.08em;color:#66758c;font-weight:850;color:#26755c\">Route 1<\/span><h3 style=\"margin:0 0 9px;color:#174f40\">DeepSeek Web\/App<\/h3><p style=\"margin:0;color:#4b625c;line-height:1.62\">Best for trying the model through DeepSeek&#8217;s own consumer interface.<\/p><\/article>\n    <article style=\"min-width:0;padding:20px;border-radius:18px;background:#ffffff;border:1px solid #d7dfed;box-shadow:0 8px 24px rgba(28,47,82,.07);box-sizing:border-box;border-top:5px solid #2864ff\"><span style=\"display:inline-block;margin:0 0 10px;font-size:12px;line-height:1.2;text-transform:uppercase;letter-spacing:.08em;color:#66758c;font-weight:850;color:#174ed3\">Route 2<\/span><h3 style=\"margin:0 0 9px;color:#1746a2\">API officielle<\/h3><p style=\"margin:0;color:#4b586f;line-height:1.62\">Best for token billing, tools, JSON, agent frameworks, and production control.<\/p><\/article>\n    <article style=\"min-width:0;padding:20px;border-radius:18px;background:#ffffff;border:1px solid #d7dfed;box-shadow:0 8px 24px rgba(28,47,82,.07);box-sizing:border-box;border-top:5px solid #7657ef\"><span style=\"display:inline-block;margin:0 0 10px;font-size:12px;line-height:1.2;text-transform:uppercase;letter-spacing:.08em;color:#66758c;font-weight:850;color:#5d43c5\">Route 3<\/span><h3 style=\"margin:0 0 9px;color:#4d35a7\">GlobalGPT<\/h3><p style=\"margin:0;color:#574f6e;line-height:1.62\">Best for opening Pro or Flash in a broader multi-model workspace without building a client first.<\/p><\/article>\n  <\/div>\n<\/section>\n\n\n\n<h3 class=\"wp-block-heading\">Route 1: official DeepSeek chat<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Start at <a href=\"https:\/\/www.deepseek.com\/\">DeepSeek\u2019s official site<\/a> if you simply want to see the current consumer experience. Consumer access and API billing are separate; an available chat interface does not mean the API is free.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Route 2: official API and coding agents<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Utilisation <code>deepseek-v4-pro<\/code> ou <code>deepseek-v4-flash<\/code> with the documented OpenAI-compatible interfaces. Both support thinking and non-thinking modes, JSON output, tool calls, Responses API, and Anthropic-compatible access. FIM applies only in non-thinking mode.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">DeepSeek also publishes an <a href=\"https:\/\/api-docs.deepseek.com\/quick_start\/agent_integrations\/codex\/\">official Codex integration guide<\/a>. If you are deciding between agent shells first, compare <a href=\"https:\/\/www.glbgpt.com\/hub\/claude-code-pricing\/\">Claude Code pricing and usage limits<\/a> before assuming model token cost is the whole bill.<\/p>\n\n\n\n<figure data-dsv4-visual=\"evidence-figure\" style=\"font-family:Inter,ui-sans-serif,system-ui,-apple-system,'Segoe UI',sans-serif;color:#17223b;box-sizing:border-box;max-width:1100px;margin:30px auto;padding:16px;border-radius:22px;background:#ffffff;border:1px solid #d9e1ee;border-top:5px solid #2864ff;box-shadow:0 12px 34px rgba(25,39,67,.09);box-sizing:border-box\"><div style=\"display:inline-flex;align-items:center;margin:0 0 12px;padding:6px 10px;border-radius:999px;background:#f1f5fb;color:#41526d;font-size:12px;font-weight:850;letter-spacing:.06em;text-transform:uppercase\">Official integration guide<\/div><img loading=\"lazy\" decoding=\"async\" style=\"display:block;width:100%;height:auto;border-radius:16px;border:1px solid #d7deea;background:#f4f7fb\" src=\"https:\/\/static.futureshareai.com\/glb_features\/deepseek-v4-codex-official-integration.webp\" alt=\"Official DeepSeek V4 integration instructions for Codex\" width=\"1271\" height=\"1280\"><figcaption style=\"margin:11px 3px 2px;font-size:14px;line-height:1.62;color:#59677d\">DeepSeek\u2019s official Codex guide uses the Responses API and documents the V4 model configuration.<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Claude Code users can follow the same endpoint-and-model logic described in our guide to <a href=\"https:\/\/www.glbgpt.com\/hub\/how-to-use-claude-opus-4-6-in-claude-code-2026-configuration-guide\/\">configuring a model in Claude Code<\/a>, while checking DeepSeek\u2019s live compatibility table for unsupported fields.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Route 3: GlobalGPT<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">GlobalGPT has dedicated entries for both models. The verified conversion route is <a href=\"https:\/\/www.glbgpt.com\/home\/deepseek-v4-pro?inviter=hub_deepseekv4_pro&amp;login=1\">DeepSeek V4 Pro on GlobalGPT<\/a>. A Flash product page also exists, but we did not find a verified Flash-specific campaign parameter, so we are not inventing one.<\/p>\n\n\n\n<figure data-dsv4-visual=\"evidence-figure\" style=\"font-family:Inter,ui-sans-serif,system-ui,-apple-system,'Segoe UI',sans-serif;color:#17223b;box-sizing:border-box;max-width:1100px;margin:30px auto;padding:16px;border-radius:22px;background:#ffffff;border:1px solid #d9e1ee;border-top:5px solid #7657ef;box-shadow:0 12px 34px rgba(25,39,67,.09);box-sizing:border-box\"><div style=\"display:inline-flex;align-items:center;margin:0 0 12px;padding:6px 10px;border-radius:999px;background:#f1f5fb;color:#41526d;font-size:12px;font-weight:850;letter-spacing:.06em;text-transform:uppercase\">Verified Pro access route<\/div><a style=\"display:block;text-decoration:none\" href=\"https:\/\/www.glbgpt.com\/home\/deepseek-v4-pro?inviter=hub_deepseekv4_pro&amp;login=1\"><img loading=\"lazy\" decoding=\"async\" style=\"display:block;width:100%;height:auto;border-radius:16px;border:1px solid #d7deea;background:#f4f7fb\" src=\"https:\/\/static.futureshareai.com\/glb_features\/globalgpt-deepseek-v4-pro-entry.webp\" alt=\"DeepSeek V4 Pro model entry inside GlobalGPT\" width=\"1280\" height=\"560\"><\/a><figcaption style=\"margin:11px 3px 2px;font-size:14px;line-height:1.62;color:#59677d\">GlobalGPT provides a dedicated DeepSeek V4 Pro entry. This confirms the route and displayed model identity, not benchmark performance.<\/figcaption><\/figure>\n\n\n\n<figure data-dsv4-visual=\"evidence-figure\" style=\"font-family:Inter,ui-sans-serif,system-ui,-apple-system,'Segoe UI',sans-serif;color:#17223b;box-sizing:border-box;max-width:1100px;margin:30px auto;padding:16px;border-radius:22px;background:#ffffff;border:1px solid #d9e1ee;border-top:5px solid #1ca078;box-shadow:0 12px 34px rgba(25,39,67,.09);box-sizing:border-box\"><div style=\"display:inline-flex;align-items:center;margin:0 0 12px;padding:6px 10px;border-radius:999px;background:#f1f5fb;color:#41526d;font-size:12px;font-weight:850;letter-spacing:.06em;text-transform:uppercase\">Verified Flash access route<\/div><a style=\"display:block;text-decoration:none\" href=\"https:\/\/www.glbgpt.com\/home?inviter=hub_popup&amp;login=1\"><img loading=\"lazy\" decoding=\"async\" style=\"display:block;width:100%;height:auto;border-radius:16px;border:1px solid #d7deea;background:#f4f7fb\" src=\"https:\/\/static.futureshareai.com\/glb_features\/globalgpt-deepseek-v4-flash-entry.webp\" alt=\"DeepSeek V4 Flash model entry inside GlobalGPT\" width=\"1280\" height=\"560\"><\/a><figcaption style=\"margin:11px 3px 2px;font-size:14px;line-height:1.62;color:#59677d\">GlobalGPT also provides a dedicated V4 Flash entry. The image links to the verified general tracked GlobalGPT route because a Flash-specific inviter was not verified.<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">For terminal workflows, the <a href=\"https:\/\/www.glbgpt.com\/hub\/how-to-use-globalgpt-cli-in-claude-code\/\">GlobalGPT CLI in Claude Code setup<\/a> explains how a multi-model platform can fit into an existing coding routine. It does not replace native repository tools; it changes how you reach and compare models.<\/p>\n\n\n\n<h2 id=\"which-model\" class=\"wp-block-heading\">Which DeepSeek V4 model should you choose?<\/h2>\n\n\n\n<section data-dsv4-visual=\"model-choice-guide\" style=\"font-family:Inter,ui-sans-serif,system-ui,-apple-system,'Segoe UI',sans-serif;color:#17223b;box-sizing:border-box;max-width:1100px;margin:28px auto;padding:clamp(18px,3vw,24px);border-radius:22px;background:linear-gradient(135deg,#f1f6ff,#f8f3ff);border:1px solid #d5dcf1;box-sizing:border-box\">\n  <div style=\"display:flex;flex-wrap:wrap;align-items:end;justify-content:space-between;gap:10px;margin-bottom:16px\"><div><span style=\"display:inline-block;margin:0 0 10px;font-size:12px;line-height:1.2;text-transform:uppercase;letter-spacing:.08em;color:#66758c;font-weight:850;color:#5d43c5\">Guide d'aide \u00e0 la d\u00e9cision<\/span><h3 style=\"margin:0;color:#2f2460;font-size:22px\">Match the model to the cost of failure<\/h3><\/div><\/div>\n  <div style=\"display:grid;grid-template-columns:repeat(auto-fit,minmax(min(230px,100%),1fr));gap:16px\">\n    <article style=\"min-width:0;padding:20px;border-radius:18px;background:#ffffff;border:1px solid #d7dfed;box-shadow:0 8px 24px rgba(28,47,82,.07);box-sizing:border-box;border-top:5px solid #2864ff\"><span style=\"display:inline-block;margin:0 0 10px;font-size:12px;line-height:1.2;text-transform:uppercase;letter-spacing:.08em;color:#66758c;font-weight:850;color:#174ed3\">Best default<\/span><h3 style=\"margin:0 0 9px;color:#1746a2\">Flash<\/h3><p style=\"margin:0;color:#4b586f;line-height:1.62\">Pick it for high-volume chat, extraction, routine code, retrieval, and agents with strong validation. It passed two of our three tasks perfectly at the lowest official price.<\/p><\/article>\n    <article style=\"min-width:0;padding:20px;border-radius:18px;background:#ffffff;border:1px solid #d7dfed;box-shadow:0 8px 24px rgba(28,47,82,.07);box-sizing:border-box;border-top:5px solid #7657ef\"><span style=\"display:inline-block;margin:0 0 10px;font-size:12px;line-height:1.2;text-transform:uppercase;letter-spacing:.08em;color:#66758c;font-weight:850;color:#5d43c5\">Higher assurance<\/span><h3 style=\"margin:0 0 9px;color:#4d35a7\">Pro<\/h3><p style=\"margin:0;color:#574f6e;line-height:1.62\">Pick it when strict arithmetic, formatting, policy, and multi-domain reasoning meet in one deliverable. It was the only model to score 12\/12 on our memo.<\/p><\/article>\n    <article style=\"min-width:0;padding:20px;border-radius:18px;background:#ffffff;border:1px solid #d7dfed;box-shadow:0 8px 24px rgba(28,47,82,.07);box-sizing:border-box;border-top:5px solid #1ca078\"><span style=\"display:inline-block;margin:0 0 10px;font-size:12px;line-height:1.2;text-transform:uppercase;letter-spacing:.08em;color:#66758c;font-weight:850;color:#26755c\">Easiest trial<\/span><h3 style=\"margin:0 0 9px;color:#174f40\">GlobalGPT<\/h3><p style=\"margin:0;color:#4b625c;line-height:1.62\">Pick the platform route when you want to try the model or compare alternatives without first writing an API client.<\/p><\/article>\n  <\/div>\n<\/section>\n\n\n\n<p class=\"wp-block-paragraph\">For many teams, Flash is the smartest first deployment: it is much cheaper, supports the same stated context and output limits, and handled our coding and 20.7K retrieval tests without a quality miss. Add deterministic checks for numbers, schema, and required sections.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Move to Pro when review time or failure cost dominates token savings. The price gap is real, but so is the value of getting a dense compliance or launch memo right on the first pass. If your shortlist includes other assistants, the broader <a href=\"https:\/\/www.glbgpt.com\/hub\/deepseek-vs-chatgpt\/\">DeepSeek vs ChatGPT choice guide<\/a> can help separate model quality from product ecosystem.<\/p>\n\n\n\n<h2 id=\"final-verdict\" class=\"wp-block-heading\">Verdict final<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>DeepSeek V4 Flash is the value winner; DeepSeek V4 Pro is the assurance upgrade.<\/strong> Both models were genuinely capable in our tests, and neither needs a 1M-token stunt to be useful. Flash matched Pro on agentic coding and mid-length retrieval. Pro separated itself when the task combined arithmetic, legal status, exact structure, JSON consistency, and a tight word-count rule.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The biggest reasons to be careful are not hidden: current prices are signposted to rise, the 1M window does not guarantee lossless recall, image and document inputs remain unsupported in the documented compatibility layers, and Preview benchmark charts are not Pro-0813 benchmark tables.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Start with Flash for validated, high-volume work. Pay for Pro when mistakes are more expensive than tokens. And if you want to compare the experience before integrating an API, <a href=\"https:\/\/www.glbgpt.com\/home\/deepseek-v4-pro?inviter=hub_deepseekv4_pro&amp;login=1\">try DeepSeek V4 Pro on GlobalGPT<\/a>.<\/p>\n\n\n\n<h2 id=\"faq\" class=\"wp-block-heading\">DeepSeek V4 FAQ<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Is DeepSeek V4 officially released?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Yes. On August 13, 2026, DeepSeek\u2019s official API documentation listed DeepSeek-V4-Pro-0813 and DeepSeek-V4-Flash-0731 as the current V4 versions.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">What is the difference between DeepSeek V4 Pro and V4 Flash?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Both list 1M context and 384K maximum output. Flash is cheaper and has a higher concurrency ceiling; Pro is the higher-quality tier and performed better on our strict multi-constraint memo.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">How much does the DeepSeek V4 API cost?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">On August 13, 2026, Flash cost $0.0028 cache-hit input, $0.14 cache-miss input, and $0.28 output per million tokens. Pro cost $0.003625, $0.435, and $0.87. DeepSeek warns that prices will rise.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Does DeepSeek V4 really support a 1M-token context window?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Yes, both current versions list a 1M-token context window. That is a capacity limit, not a guarantee of perfect retrieval: DeepSeek\u2019s Preview report shows MRCR performance declining at extreme lengths.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Can I use DeepSeek V4 with Codex or Claude Code?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Yes. DeepSeek documents a Codex setup through its Responses API and offers an Anthropic-compatible interface for tools such as Claude Code, although not every Anthropic field or feature is supported.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Is DeepSeek V4 open source or open weight?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">DeepSeek publishes official V4 weights and lists an MIT license on the Pro model card. Running the full Pro model locally still requires serious storage, memory, and inference infrastructure.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Can I use DeepSeek V4 for free?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">DeepSeek may provide consumer chat access, but its official API is billed by tokens. Any third-party platform access depends on that platform\u2019s current plan, so do not treat web access and API pricing as the same thing.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Can I use DeepSeek V4 on GlobalGPT?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Yes. GlobalGPT has dedicated DeepSeek V4 Pro and Flash entries. The verified tracked Pro route opens the model directly, while the general tracked GlobalGPT route can be used when a Flash-specific campaign link is unavailable.<\/p>\n\n\n\n<script type=\"application\/ld+json\">{\n    \"@context\": \"https:\\\/\\\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is DeepSeek V4 officially released?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. 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DeepSeek documents a Codex setup through its Responses API and offers an Anthropic-compatible interface for tools such as Claude Code, although not every Anthropic field or feature is supported.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is DeepSeek V4 open source or open weight?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"DeepSeek publishes official V4 weights and lists an MIT license on the Pro model card. Running the full Pro model locally still requires serious storage, memory, and inference infrastructure.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Can I use DeepSeek V4 for free?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"DeepSeek may provide consumer chat access, but its official API is billed by tokens. Any third-party platform access depends on that platform\\u2019s current plan, so do not treat web access and API pricing as the same thing.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Can I use DeepSeek V4 on GlobalGPT?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. GlobalGPT has dedicated DeepSeek V4 Pro and Flash entries. The verified tracked Pro route opens the model directly, while the general tracked GlobalGPT route can be used when a Flash-specific campaign link is unavailable.\"\n            }\n        }\n    ]\n}<\/script>\n\n\n\n<script type=\"application\/ld+json\">{\n    \"@context\": \"https:\\\/\\\/schema.org\",\n    \"@type\": \"Article\",\n    \"headline\": \"DeepSeek V4 Pro Review: What Changed, Benchmarks, Pricing, and How to Try It\",\n    \"description\": \"A hands-on DeepSeek V4 Pro review covering Pro vs Flash tests, official API pricing, 1M context limits, benchmarks, and access routes.\",\n    \"image\": [\n        \"https:\\\/\\\/static.futureshareai.com\\\/glb_features\\\/deepseek-v4-pro-review-hero.webp\"\n    ],\n    \"datePublished\": \"2026-08-13\",\n    \"dateModified\": \"2026-08-13\",\n    \"author\": {\n        \"@type\": \"Organization\",\n        \"name\": \"GlobalGPT Hub\"\n    },\n    \"publisher\": {\n        \"@type\": \"Organization\",\n        \"name\": \"GlobalGPT\"\n    },\n    \"mainEntityOfPage\": {\n        \"@type\": \"WebPage\",\n        \"@id\": \"https:\\\/\\\/www.glbgpt.com\\\/hub\\\/deepseek-v4-pro-review\\\/\"\n    }\n}<\/script>","protected":false},"excerpt":{"rendered":"<p>Updated August 13, 2026 &#8226; Independent hands-on review Quick answer: DeepSeek V4 is officially available as DeepSeek-V4-Pro-0813 and DeepSeek-V4-Flash-0731. Both list a 1M-token context window and 384K maximum output. Flash is the low-cost, high-concurrency choice; Pro costs more but was more reliable on our strictest multi-constraint task. Pro-0813 Flash-0731 1M context 384K max output Thinking [&hellip;]<\/p>","protected":false},"author":16,"featured_media":18029,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"DeepSeek V4 Pro Review: Tests, Pricing & How to Try It","_seopress_titles_desc":"DeepSeek V4 Pro or Flash? 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