{"id":20652,"date":"2026-10-14T02:26:32","date_gmt":"2026-10-14T06:26:32","guid":{"rendered":"https:\/\/wp.glbgpt.com\/?p=20652"},"modified":"2026-10-14T02:26:33","modified_gmt":"2026-10-14T06:26:33","slug":"how-to-use-nano-banana-2-1","status":"publish","type":"post","link":"https:\/\/wp.glbgpt.com\/kr\/hub\/how-to-use-nano-banana-2-1","title":{"rendered":"Nano Banana 2.1 \uc0ac\uc6a9 \ubc29\ubc95: \uc774\ubbf8\uc9c0 \uc0dd\uc131, \ud3b8\uc9d1 \ubc0f \ubcf4\uc815"},"content":{"rendered":"<p class=\"wp-block-paragraph\"><strong>To use Nano Banana 2.1, choose the model in an image generator, describe the image you want, set the shape and resolution, and generate a first draft. To change that draft, attach it as a reference and specify what must stay the same.<\/strong> Start at 1K while you explore the idea. Move to a larger output when the composition and text are settled.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In <a href=\"https:\/\/www.glbgpt.com\/home?inviter=hub_content_home&amp;login=1\">GlobalGPT<\/a>, you can turn a brief into an image, refine the result, and continue with writing or video tools in the same multi-model workspace. That is useful when the picture is one part of a product launch, a social campaign, or a presentation\u2014not the entire job.<\/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\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"640\" src=\"https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/10\/nano21-globalgpt-workspace-clean-20261013_817492f562a74adbb3c310c614286737-1024x640.webp\" alt=\"nano21-globalgpt-workspace-clean\" class=\"wp-image-20655\" srcset=\"https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/10\/nano21-globalgpt-workspace-clean-20261013_817492f562a74adbb3c310c614286737-1024x640.webp 1024w, https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/10\/nano21-globalgpt-workspace-clean-20261013_817492f562a74adbb3c310c614286737-300x188.webp 300w, https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/10\/nano21-globalgpt-workspace-clean-20261013_817492f562a74adbb3c310c614286737-768x480.webp 768w, https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/10\/nano21-globalgpt-workspace-clean-20261013_817492f562a74adbb3c310c614286737-18x12.webp 18w, https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/10\/nano21-globalgpt-workspace-clean-20261013_817492f562a74adbb3c310c614286737.webp 1440w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/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 is-style-fill\"><a class=\"wp-block-button__link has-white-color has-text-color has-background has-link-color wp-element-button\" href=\"https:\/\/www.glbgpt.com\/image-generator\/nano-banana-2-1?inviter=hub_nano21&amp;login=1\" style=\"background:linear-gradient(135deg,rgba(250,183,0,0.88) 0%,rgba(255,106,0,0.78) 100%)\"><strong>\uc9c0\uae08 GlobalGPT\uc5d0\uc11c Nano Banana\ub97c \uc0ac\uc6a9\ud574 \ubcf4\uc138\uc694<\/strong><\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">We tried Nano Banana 2.1 with three practical examples: a labeled product photograph, an edit of that same photograph, and an English workflow graphic. The examples below include the first outputs and the prompts, so you can see what to ask for and what still needs a human check.<\/p>\n\n\n\n<style>#toc-how-to-use-nano-banana-2-1{box-sizing:border-box;padding:22px;border:1px solid #d7e4e8;border-radius:12px;background:#f3f8fa;margin:28px 0;font:inherit}#toc-how-to-use-nano-banana-2-1 ul{display:grid;grid-template-columns:1fr 1fr;gap:9px 24px;margin:12px 0 0;padding-left:20px}#toc-how-to-use-nano-banana-2-1 a{color:#145c6e;text-decoration:underline;text-underline-offset:3px}@media(max-width:600px){#toc-how-to-use-nano-banana-2-1 ul{grid-template-columns:1fr}}<\/style><nav id=\"toc-how-to-use-nano-banana-2-1\" aria-label=\"\ubaa9\ucc28\"><strong>\uc774 \uac00\uc774\ub4dc\uc5d0\uc11c\ub294<\/strong><ul><li><a href=\"#choose-model\">What is Nano Banana 2.1\u2014and which model should you select?<\/a><\/li><li><a href=\"#where-to-use\">Where can you use Nano Banana 2.1?<\/a><\/li><li><a href=\"#globalgpt-steps\">How to use Nano Banana 2.1 in GlobalGPT<\/a><\/li><li><a href=\"#product-example\">Example 1: generate a labeled product photograph<\/a><\/li><li><a href=\"#edit-image\">Example 2: edit the image without rebuilding the subject<\/a><\/li><li><a href=\"#text-graphic\">Example 3: create an English workflow graphic<\/a><\/li><li><a href=\"#pricing\">Nano Banana 2.1 pricing and free-access conditions<\/a><\/li><li><a href=\"#better-results\">How to get better results\u2014and fix common misses<\/a><\/li><li><a href=\"#start\">Start with one useful image<\/a><\/li><li><a href=\"#sources\">\ucd9c\ucc98<\/a><\/li><li><a href=\"#frequently-asked-questions\">\uc790\uc8fc \ubb3b\ub294 \uc9c8\ubb38<\/a><\/li><\/ul><\/nav>\n\n\n\n<h2 id=\"choose-model\" class=\"wp-block-heading\">What is Nano Banana 2.1\u2014and which model should you select?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Nano Banana 2.1 is Google\u2019s image-generation and conversational-editing model. Its official identifier is <code>gemini-nano-banana-2.1<\/code>. It updates Nano Banana 2, the model also known as Gemini 3.1 Flash Image. Nano Banana Pro is a separate option, so check the selected model name instead of assuming every \u201cNano Banana\u201d entry is identical.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" width=\"1440\" height=\"900\" src=\"https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/10\/nano21-official-model-20261013_a0f4abdee3a94d9f9db749ee0d5758c2.webp\" alt=\"Google documentation lists Nano Banana 2.1 image generation, editing, resolution and reference-image capabilities.\" class=\"wp-image-20661\" srcset=\"https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/10\/nano21-official-model-20261013_a0f4abdee3a94d9f9db749ee0d5758c2.webp 1440w, https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/10\/nano21-official-model-20261013_a0f4abdee3a94d9f9db749ee0d5758c2-300x188.webp 300w, https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/10\/nano21-official-model-20261013_a0f4abdee3a94d9f9db749ee0d5758c2-1024x640.webp 1024w, https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/10\/nano21-official-model-20261013_a0f4abdee3a94d9f9db749ee0d5758c2-768x480.webp 768w, https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/10\/nano21-official-model-20261013_a0f4abdee3a94d9f9db749ee0d5758c2-18x12.webp 18w\" sizes=\"(max-width: 1440px) 100vw, 1440px\" \/><figcaption class=\"wp-element-caption\">Google\u2019s Nano Banana 2.1 model reference, checked October 13, 2026.<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The 2.1 model supports 1K, 2K, and 4K image output, with 1K as its default. Google documents up to 14 reference images, with consistency support for up to four characters and fidelity for up to ten objects. Those are different limits: fourteen uploads do not mean fourteen people will all retain their appearance perfectly.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Use 2.1 for a fast first draft, product scenes, iterative edits, short text, and instructional graphics.<\/li>\n\n\n\n<li>Use reference images when the subject already exists: a product, a person you have permission to depict, or an approved visual style.<\/li>\n\n\n\n<li>Compare another model when a first draft repeatedly misses the feature that matters to your project. Keep the same brief and source material for a useful comparison.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">If you are choosing between the two current options, our <a href=\"https:\/\/www.glbgpt.com\/hub\/nano-banana-2-1-vs-pro\/\">Nano Banana 2.1 vs Nano Banana Pro comparison<\/a> focuses on the same-prompt decision. For a first tutorial, stay with one model until you understand how it responds to revisions.<\/p>\n\n\n\n<h2 id=\"where-to-use\" class=\"wp-block-heading\">Where can you use Nano Banana 2.1?<\/h2>\n\n\n\n<style>.nb21-1{box-sizing:border-box;font:16px\/1.65 Arial,sans-serif;overflow-wrap:anywhere}.nb21-1 *{box-sizing:border-box}.nb21-1 h3{color:#173b36;font-size:23px;margin:0 0 14px}.nb21-1 pre{white-space:pre-wrap;overflow-wrap:anywhere}.nb21-1 table{width:100%;border-collapse:collapse}.nb21-1 th,.nb21-1 td{padding:12px;border-bottom:1px solid #c9dcd5;text-align:left;vertical-align:top}@media(max-width:600px){.nb21-1{padding:16px!important;font-size:15px}}<\/style><section class=\"nb21-1\" style=\"margin:28px 0;padding:24px;background:#eef7f2;color:#173b36;border:1px solid #c9dcd5;border-radius:14px\"><h3 style=\"color:#173b36\">Choose the route that fits your work<\/h3><div style=\"overflow-x:auto\"><table style=\"width:100%;border-collapse:collapse\"><thead><tr><th style=\"text-align:left;padding:12px;border-bottom:2px solid #94b6a8\">\uacbd\ub85c<\/th><th style=\"text-align:left;padding:12px;border-bottom:2px solid #94b6a8\">\uac00\uc7a5 \uc801\ud569<\/th><th style=\"text-align:left;padding:12px;border-bottom:2px solid #94b6a8\">\ud655\uc778\ud560 \uc0ac\ud56d<\/th><\/tr><\/thead><tbody><tr><td style=\"padding:12px;border-bottom:1px solid #c9dcd5\">GlobalGPT<\/td><td style=\"padding:12px;border-bottom:1px solid #c9dcd5\">Generate and revise images alongside writing, video, and other models.<\/td><td style=\"padding:12px;border-bottom:1px solid #c9dcd5\">Select Nano Banana 2.1, check the generation credit estimate, then review the result.<\/td><\/tr><tr><td style=\"padding:12px;border-bottom:1px solid #c9dcd5\">Google AI \uc2a4\ud29c\ub514\uc624<\/td><td style=\"padding:12px;border-bottom:1px solid #c9dcd5\">Explore Google\u2019s model controls and prototype prompts.<\/td><td style=\"padding:12px;border-bottom:1px solid #c9dcd5\">Account access, model availability, and the experiment\u2019s billing or quota conditions.<\/td><\/tr><tr><td style=\"padding:12px;border-bottom:1px solid #c9dcd5\">Gemini API<\/td><td style=\"padding:12px;border-bottom:1px solid #c9dcd5\">Build image creation or editing into software.<\/td><td style=\"padding:12px;border-bottom:1px solid #c9dcd5\">Use gemini-nano-banana-2.1; enable the required billing and inspect actual token usage.<\/td><\/tr><\/tbody><\/table><\/div><\/section>\n\n\n\n<p class=\"wp-block-paragraph\">Google\u2019s model reference links to AI Studio and its image-generation documentation. Access to one interface does not establish the same free allowance in another. A paid Gemini API rate also does not describe a GlobalGPT subscription.<\/p>\n\n\n\n<h2 id=\"globalgpt-steps\" class=\"wp-block-heading\">How to use Nano Banana 2.1 in GlobalGPT<\/h2>\n\n\n\n<h3 id=\"1-open-the-image-workspace-and-check-the-model\" class=\"wp-block-heading\">1. Open the image workspace and check the model<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\uc5f4\uae30 <a href=\"https:\/\/www.glbgpt.com\/home?inviter=hub_content_home&amp;login=1\">GlobalGPT<\/a>, enter the image generator, and choose <strong>Nano Banana 2.1<\/strong> in the model selector. Sign in to keep your creations together. If you switch from another image model, check the selector again before generating.<\/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\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"640\" src=\"https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/10\/nano21-globalgpt-workspace-clean-20261013_817492f562a74adbb3c310c614286737-1024x640.webp\" alt=\"nano21-globalgpt-workspace-clean\" class=\"wp-image-20655\" srcset=\"https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/10\/nano21-globalgpt-workspace-clean-20261013_817492f562a74adbb3c310c614286737-1024x640.webp 1024w, https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/10\/nano21-globalgpt-workspace-clean-20261013_817492f562a74adbb3c310c614286737-300x188.webp 300w, https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/10\/nano21-globalgpt-workspace-clean-20261013_817492f562a74adbb3c310c614286737-768x480.webp 768w, https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/10\/nano21-globalgpt-workspace-clean-20261013_817492f562a74adbb3c310c614286737-18x12.webp 18w, https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/10\/nano21-globalgpt-workspace-clean-20261013_817492f562a74adbb3c310c614286737.webp 1440w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/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 is-style-fill\"><a class=\"wp-block-button__link has-white-color has-text-color has-background has-link-color wp-element-button\" href=\"https:\/\/www.glbgpt.com\/image-generator\/nano-banana-2-1?inviter=hub_nano21&amp;login=1\" style=\"background:linear-gradient(135deg,rgba(250,183,0,0.88) 0%,rgba(255,106,0,0.78) 100%)\"><strong>\uc9c0\uae08 GlobalGPT\uc5d0\uc11c Nano Banana\ub97c \uc0ac\uc6a9\ud574 \ubcf4\uc138\uc694<\/strong><\/a><\/div>\n<\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">The controls you need are grouped on the left: reference images, the prompt, aspect ratio, resolution, and Generate. In our October 13 view, the 1K configuration displayed 200 credits on the button. Treat that as the displayed estimate for that configuration; changing settings or account conditions can change the amount shown.<\/p>\n\n\n\n<h3 id=\"2-decide-the-image-s-job-before-writing-the-prompt\" class=\"wp-block-heading\">2. Decide the image\u2019s job before writing the prompt<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A product listing, a slide illustration, and a social post need different framing. State the subject, scene, lighting, camera view, and intended empty space. Give exact words in quotation marks if the image must contain text. A useful prompt is specific about the deliverable without piling on unrelated style adjectives.<\/p>\n\n\n\n<style>.nb21-2{box-sizing:border-box;font:16px\/1.65 Arial,sans-serif;overflow-wrap:anywhere}.nb21-2 *{box-sizing:border-box}.nb21-2 h3{color:#173b36;font-size:23px;margin:0 0 14px}.nb21-2 pre{white-space:pre-wrap;overflow-wrap:anywhere}.nb21-2 table{width:100%;border-collapse:collapse}.nb21-2 th,.nb21-2 td{padding:12px;border-bottom:1px solid #c9dcd5;text-align:left;vertical-align:top}@media(max-width:600px){.nb21-2{padding:16px!important;font-size:15px}}<\/style><section class=\"nb21-2\" style=\"margin:28px 0;padding:24px;background:#eef7f2;color:#173b36;border:1px solid #c9dcd5;border-radius:14px\"><h3 style=\"color:#173b36\">A reusable first-image prompt<\/h3><pre style=\"white-space:pre-wrap;overflow-wrap:anywhere;background:#fff;color:#173b36;padding:16px;border-radius:8px\">Create a [shape] image of [subject] for [use]. Place it in [scene]. Use [lighting] and [camera view]. Keep [important details] clearly visible. Leave empty space at [position] for copy I will add later. The only visible text should be \"[exact text]\". No extra objects, logos, or watermark.<\/pre><\/section>\n\n\n\n<h3 id=\"3-set-aspect-ratio-and-resolution\" class=\"wp-block-heading\">3. Set aspect ratio and resolution<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Choose the shape for the final placement: a wide frame for a presentation or article, square for a product tile, or portrait for a vertical post. Use 1K for early iterations. Once the result works, request 2K or 4K when you need a larger asset; that choice increases the output cost and does not guarantee a better composition.<\/p>\n\n\n\n<h3 id=\"4-generate-once-then-inspect-the-result\" class=\"wp-block-heading\">4. Generate once, then inspect the result<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Check the entire picture, not just the central subject. Read every word, count important objects, inspect edges and reflections, and look at the background. Save a useful first version before you start revising. A small targeted correction is easier to evaluate than changing the subject, lighting, layout, and style all at once.<\/p>\n\n\n\n<h2 id=\"product-example\" class=\"wp-block-heading\">Example 1: generate a labeled product photograph<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Our first brief asked for one cobalt-blue glass bottle, a brushed-silver cap, a cream label reading \u201cCLEAR DAY,\u201d and a lemon on the left. We chose a quiet product-photo composition rather than a complicated scene so that text, material, object count, and placement were easy to check.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" width=\"1376\" height=\"768\" src=\"https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/10\/task_GmWF92cVITjwQBGirPk4Y4MT5cfyY44f.png\" alt=\"Nano Banana 2.1 generated a blue bottle labeled CLEAR DAY with a lemon on a light stone desk.\" class=\"wp-image-20662\" srcset=\"https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/10\/task_GmWF92cVITjwQBGirPk4Y4MT5cfyY44f.png 1376w, https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/10\/task_GmWF92cVITjwQBGirPk4Y4MT5cfyY44f-300x167.png 300w, https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/10\/task_GmWF92cVITjwQBGirPk4Y4MT5cfyY44f-1024x572.png 1024w, https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/10\/task_GmWF92cVITjwQBGirPk4Y4MT5cfyY44f-768x429.png 768w, https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/10\/task_GmWF92cVITjwQBGirPk4Y4MT5cfyY44f-18x10.png 18w\" sizes=\"(max-width: 1376px) 100vw, 1376px\" \/><figcaption class=\"wp-element-caption\">First Nano Banana 2.1 output on GlobalGPT: a morning-light product photograph.<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The label is legible, the bottle and cap match the requested materials, and the lemon sits on the left. The glass reflections and soft shadows give the scene a coherent photographic look. It is a useful starting image for a fictional product campaign; a real product still needs comparison against its actual packaging and proportions.<\/p>\n\n\n\n<style>.nb21-3{box-sizing:border-box;font:16px\/1.65 Arial,sans-serif;overflow-wrap:anywhere}.nb21-3 *{box-sizing:border-box}.nb21-3 h3{color:#173b36;font-size:23px;margin:0 0 14px}.nb21-3 pre{white-space:pre-wrap;overflow-wrap:anywhere}.nb21-3 table{width:100%;border-collapse:collapse}.nb21-3 th,.nb21-3 td{padding:12px;border-bottom:1px solid #c9dcd5;text-align:left;vertical-align:top}@media(max-width:600px){.nb21-3{padding:16px!important;font-size:15px}}<\/style><section class=\"nb21-3\" style=\"margin:28px 0;padding:24px;background:#eef7f2;color:#173b36;border:1px solid #c9dcd5;border-radius:14px\"><h3 style=\"color:#173b36\">Product photograph: exact test prompt<\/h3><pre style=\"white-space:pre-wrap;overflow-wrap:anywhere;background:#fff;color:#173b36;padding:16px\">Create a realistic 16:9 editorial product photograph of one cobalt-blue glass water bottle with a brushed silver screw cap, on a pale limestone desk. The bottle has a small rectangular cream label that reads exactly CLEAR DAY in two lines, with no other text. One fresh lemon sits to the left of the bottle. Soft morning window light from the right, subtle natural shadows, calm minimalist composition, bottle fully visible and centered slightly right with generous negative space on the left. No people, no watermark, no extra bottles, no Chinese text.<\/pre><p>GlobalGPT \u00b7 October 13, 2026 \u00b7 Nano Banana 2.1 \u00b7 requested 1K and 16:9 \u00b7 first valid output \u00b7 27.98 seconds to task completion. The delivered file is 1376 \u00d7 768 pixels.<\/p><p><strong>Use this for:<\/strong> a clean first draft with readable short packaging text and a clear product arrangement. Before using it for a real brand, compare the bottle shape, label, and proportions with approved packaging; then request one targeted correction at a time.<\/p><\/section>\n\n\n\n<h2 id=\"edit-image\" class=\"wp-block-heading\">Example 2: edit the image without rebuilding the subject<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Attach the first result as a reference. Then split the instruction into two parts: <strong>keep<\/strong> the product, label, camera angle, and composition; <strong>\ubcc0\uacbd<\/strong> the lighting and background mood. If you attach several references, use the interface\u2019s reference labels to explain each image\u2019s role.<\/p>\n\n\n\n<style>.nb21-4{box-sizing:border-box;font:16px\/1.65 Arial,sans-serif;overflow-wrap:anywhere}.nb21-4 *{box-sizing:border-box}.nb21-4 h3{color:#173b36;font-size:23px;margin:0 0 14px}.nb21-4 pre{white-space:pre-wrap;overflow-wrap:anywhere}.nb21-4 table{width:100%;border-collapse:collapse}.nb21-4 th,.nb21-4 td{padding:12px;border-bottom:1px solid #c9dcd5;text-align:left;vertical-align:top}@media(max-width:600px){.nb21-4{padding:16px!important;font-size:15px}}<\/style><section class=\"nb21-4\" style=\"margin:28px 0;padding:24px;background:#eef7f2;color:#173b36;border:1px solid #c9dcd5;border-radius:14px\"><h3 style=\"color:#173b36\">A focused edit instruction<\/h3><pre style=\"white-space:pre-wrap;overflow-wrap:anywhere;background:#fff;color:#173b36;padding:16px\">Edit the attached image. Keep the same cobalt-blue glass bottle, brushed silver cap, cream label, exact CLEAR DAY text, bottle size, position, camera angle, pale limestone desk, and lemon unchanged. Change only the lighting and background mood from morning to cinematic blue-hour dusk: cool blue ambient light, a subtle warm light reflection from the right, and a softly blurred dark window background. Preserve photorealistic glass, the original composition and 16:9 framing. Do not add objects, words, logos, watermarks, or Chinese text.<\/pre><p>GlobalGPT \u00b7 October 13, 2026 \u00b7 Nano Banana 2.1 \u00b7 requested 1K and 16:9 \u00b7 first valid output \u00b7 33.50 seconds to task completion. The previous image was the reference; the delivered file is 1376 \u00d7 768 pixels.<\/p><p><strong>Keep the product, change the mood:<\/strong> the bottle, cap, and readable label stayed recognizable while the scene moved to blue-hour lighting. The lemon shifted slightly, so compare secondary objects too. Save the source version and request a focused repair if that detail matters to your final asset.<\/p><\/section>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1376\" height=\"768\" src=\"https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/10\/task_MShQASlmPiCSkT02SZoEAOFA0lB1esYG.png\" alt=\"The same blue bottle and CLEAR DAY label in a cooler blue-hour scene after a reference-image edit.\" class=\"wp-image-20664\" srcset=\"https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/10\/task_MShQASlmPiCSkT02SZoEAOFA0lB1esYG.png 1376w, https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/10\/task_MShQASlmPiCSkT02SZoEAOFA0lB1esYG-300x167.png 300w, https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/10\/task_MShQASlmPiCSkT02SZoEAOFA0lB1esYG-1024x572.png 1024w, https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/10\/task_MShQASlmPiCSkT02SZoEAOFA0lB1esYG-768x429.png 768w, https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/10\/task_MShQASlmPiCSkT02SZoEAOFA0lB1esYG-18x10.png 18w\" sizes=\"(max-width: 1376px) 100vw, 1376px\" \/><figcaption class=\"wp-element-caption\">The dusk revision keeps the main product recognizable while changing the atmosphere.<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The edit preserved the blue bottle, silver cap, readable label, and broad arrangement. The cool light and darker window clearly changed the mood. The lemon\u2019s orientation also shifted slightly, despite the instruction to leave it unchanged. For an advertising asset, inspect secondary objects as carefully as the product itself before approving a revision.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This is where a multi-model workspace becomes useful: create the image, ask a writing model for headline options, and keep the visual revision brief close to the copy. For a connected project with branches and reference assets, the <a href=\"https:\/\/www.glbgpt.com\/hub\/globalgpt-canvas\/\">GlobalGPT Canvas workflow<\/a> gives you a practical next step.<\/p>\n\n\n\n<h2 id=\"text-graphic\" class=\"wp-block-heading\">Example 3: create an English workflow graphic<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">We also requested four equal panels with icons and the labels \u201c1 CHOOSE,\u201d \u201c2 PROMPT,\u201d \u201c3 REFINE,\u201d and \u201c4 EXPORT.\u201d The result used consistent colors, orderly spacing, four matching icons, and three connecting arrows.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img loading=\"lazy\" decoding=\"async\" width=\"1376\" height=\"768\" src=\"https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/10\/task_pvXXLI9P5YwlZAMbTMY9k78eFlG78PIc.png\" alt=\"Four-panel AI workflow graphic labeled CHOOSE, PROMPT, REFINE and EXPORT.\" class=\"wp-image-20663\" srcset=\"https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/10\/task_pvXXLI9P5YwlZAMbTMY9k78eFlG78PIc.png 1376w, https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/10\/task_pvXXLI9P5YwlZAMbTMY9k78eFlG78PIc-300x167.png 300w, https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/10\/task_pvXXLI9P5YwlZAMbTMY9k78eFlG78PIc-1024x572.png 1024w, https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/10\/task_pvXXLI9P5YwlZAMbTMY9k78eFlG78PIc-768x429.png 768w, https:\/\/wp.glbgpt.com\/wp-content\/uploads\/2026\/10\/task_pvXXLI9P5YwlZAMbTMY9k78eFlG78PIc-18x10.png 18w\" sizes=\"(max-width: 1376px) 100vw, 1376px\" \/><figcaption class=\"wp-element-caption\">Nano Banana 2.1 produced the four English words correctly but omitted their requested number prefixes.<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The four words are readable and in the right order. The missing numerals mean the image does not satisfy the exact-text instruction completely. If the numbering is important, request that specific repair or add final typography in a design editor. Short text can work well; exact text still deserves a line-by-line check.<\/p>\n\n\n\n<style>.nb21-infographic-prompt{box-sizing:border-box;font:16px\/1.65 Arial,sans-serif;overflow-wrap:anywhere}.nb21-infographic-prompt *{box-sizing:border-box}.nb21-infographic-prompt h3{color:#173b36;font-size:23px;margin:0 0 14px}.nb21-infographic-prompt pre{white-space:pre-wrap;overflow-wrap:anywhere}@media(max-width:600px){.nb21-infographic-prompt{padding:16px!important;font-size:15px}}<\/style><section class=\"nb21-infographic-prompt\" style=\"margin:28px 0;padding:24px;background:#eef7f2;color:#173b36;border:1px solid #c9dcd5;border-radius:14px\"><h3>Workflow graphic: exact test prompt<\/h3><pre style=\"white-space:pre-wrap;overflow-wrap:anywhere;background:#fff;color:#173b36;padding:16px;border-radius:8px\">Create a clean 16:9 instructional infographic on a warm white background. Four equal panels run left to right, separated by generous whitespace. Each panel contains one simple flat teal-and-navy icon and exactly one large, readable English label below it. Panel 1: a cursor over a small image card, label 1 CHOOSE. Panel 2: a pencil drawing a rectangle, label 2 PROMPT. Panel 3: a picture frame with a small adjustment slider, label 3 REFINE. Panel 4: a downward arrow over a tray, label 4 EXPORT. Add one thin teal arrow between each neighboring pair of panels. No title, no subtitle, no decorative words, no logo, no watermark, no Chinese text. Use consistent icon size, aligned baselines, crisp vector-like edges and readable letter spacing.<\/pre><p>GlobalGPT \u00b7 October 13, 2026 \u00b7 Nano Banana 2.1 \u00b7 requested 1K and 16:9 \u00b7 first valid output \u00b7 27.32 seconds to task completion.<\/p><p><strong>Finish the typography:<\/strong> the four English words and their order worked, but the requested number prefixes were missing. Ask for that specific correction or add the numbers in a design editor, then proofread the finished graphic before publishing.<\/p><\/section>\n\n\n\n<style>.nb21-5{box-sizing:border-box;font:16px\/1.65 Arial,sans-serif;overflow-wrap:anywhere}.nb21-5 *{box-sizing:border-box}.nb21-5 h3{color:#173b36;font-size:23px;margin:0 0 14px}.nb21-5 pre{white-space:pre-wrap;overflow-wrap:anywhere}.nb21-5 table{width:100%;border-collapse:collapse}.nb21-5 th,.nb21-5 td{padding:12px;border-bottom:1px solid #c9dcd5;text-align:left;vertical-align:top}@media(max-width:600px){.nb21-5{padding:16px!important;font-size:15px}}<\/style><section class=\"nb21-5\" style=\"margin:28px 0;padding:24px;background:#eef7f2;color:#173b36;border:1px solid #c9dcd5;border-radius:14px\"><h3 style=\"color:#173b36\">How to turn a draft into a finished image<\/h3><ul style=\"padding-left:22px\"><li>Start with one clear subject and a short label. Check the first result against the product details you need to preserve.<\/li><li>Save a useful version before changing the lighting. Use it as the reference and inspect small background or prop changes after each revision.<\/li><li>Treat generated typography as a draft: proofread every word and number, then make a targeted repair or finish the text in an editor.<\/li><\/ul><p>Begin at 1K to settle the composition before moving to a larger output. These three examples show practical starting points; we did not test 4K or exact-pixel preservation. The recorded completion times include task and network overhead.<\/p><\/section>\n\n\n\n<h2 id=\"pricing\" class=\"wp-block-heading\">Nano Banana 2.1 pricing and free-access conditions<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Google\u2019s standard Gemini API rates, checked October 13, 2026, are $1.50 per million input tokens, $7.50 per million text and thinking output tokens, and $30 per million image output tokens. The image portion scales with resolution.<\/p>\n\n\n\n<style>.nb21-6{box-sizing:border-box;font:16px\/1.65 Arial,sans-serif;overflow-wrap:anywhere}.nb21-6 *{box-sizing:border-box}.nb21-6 h3{color:#173b36;font-size:23px;margin:0 0 14px}.nb21-6 pre{white-space:pre-wrap;overflow-wrap:anywhere}.nb21-6 table{width:100%;border-collapse:collapse}.nb21-6 th,.nb21-6 td{padding:12px;border-bottom:1px solid #c9dcd5;text-align:left;vertical-align:top}@media(max-width:600px){.nb21-6{padding:16px!important;font-size:15px}}<\/style><section class=\"nb21-6\" style=\"margin:28px 0;padding:24px;background:#eef7f2;color:#173b36;border:1px solid #c9dcd5;border-radius:14px\"><h3 style=\"color:#173b36\">Standard Gemini API image-output cost<\/h3><div style=\"overflow-x:auto\"><table style=\"width:100%;border-collapse:collapse\"><thead><tr><th style=\"text-align:left;padding:12px;border-bottom:2px solid #94b6a8\">\ud574\uc0c1\ub3c4<\/th><th style=\"text-align:left;padding:12px;border-bottom:2px solid #94b6a8\">Image tokens<\/th><th style=\"text-align:left;padding:12px;border-bottom:2px solid #94b6a8\">Image-output portion<\/th><\/tr><\/thead><tbody><tr><td style=\"padding:12px;border-bottom:1px solid #c9dcd5\">1K<\/td><td style=\"padding:12px;border-bottom:1px solid #c9dcd5\">1,120<\/td><td style=\"padding:12px;border-bottom:1px solid #c9dcd5\">$0.0336<\/td><\/tr><tr><td style=\"padding:12px;border-bottom:1px solid #c9dcd5\">2K<\/td><td style=\"padding:12px;border-bottom:1px solid #c9dcd5\">1,680<\/td><td style=\"padding:12px;border-bottom:1px solid #c9dcd5\">$0.0504<\/td><\/tr><tr><td style=\"padding:12px;border-bottom:1px solid #c9dcd5\">4K<\/td><td style=\"padding:12px;border-bottom:1px solid #c9dcd5\">3,780<\/td><td style=\"padding:12px;border-bottom:1px solid #c9dcd5\">$0.1134 (about $0.113)<\/td><\/tr><\/tbody><\/table><\/div><\/section>\n\n\n\n<p class=\"wp-block-paragraph\">For example, 100 outputs at 1K contribute $3.36 in image-output charges before input, text\/thinking, grounding, or other applicable charges. These calculations describe Google\u2019s API billing, not GlobalGPT credit charges. Revisions are additional generations, so include them when estimating a project.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The official API pricing table lists the model\u2019s free tier as unavailable. Do not confuse that with a temporary app promotion or an AI Studio allowance. In GlobalGPT, check the account\u2019s available credits and the displayed generation estimate before you run; a signup button is not a promise of unlimited free images.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For a workflow that also needs copy, presentation ideas, or video, <a href=\"https:\/\/www.glbgpt.com\/home?inviter=hub_content_home&amp;login=1\">GlobalGPT\uc758 \ub2e4\uc911 \ubaa8\ub378 \uad6c\ub3c5 \uc11c\ube44\uc2a4<\/a> lets you use those tools in one place. Compare the plan with the full project you need to finish, rather than treating a developer\u2019s per-image rate as a complete subscription comparison.<\/p>\n\n\n\n<h2 id=\"better-results\" class=\"wp-block-heading\">How to get better results\u2014and fix common misses<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Wrong subject: replace a vague description with one clear subject and a reference image.<\/li>\n\n\n\n<li>Product drift: specify the features to preserve, then compare the new image with the source at full size.<\/li>\n\n\n\n<li>Unreadable or missing text: shorten the phrase, quote it exactly, and check every character. Add final legal or pricing text in an editor when accuracy is critical.<\/li>\n\n\n\n<li>Crowded layout: name the empty area and reduce decorative objects.<\/li>\n\n\n\n<li>An edit changes too much: return to the saved version and change one variable at a time.<\/li>\n\n\n\n<li>Unexpected crop: choose the aspect ratio before generation and verify the delivered pixel dimensions before placing the image.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">When the output is ready, download it and inspect it at the size you plan to publish. Keep a copy of the prompt and the source reference with the asset. That makes later variations much easier to reproduce.<\/p>\n\n\n\n<h2 id=\"start\" class=\"wp-block-heading\">Start with one useful image<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A good first Nano Banana 2.1 project is small: one subject, one composition, one deliberate revision. <a href=\"https:\/\/www.glbgpt.com\/home?inviter=hub_content_home&amp;login=1\">Try that sequence in GlobalGPT<\/a>, then use the best result as the starting point for your next campaign asset. The time you spend defining what must stay fixed usually pays off more than another paragraph of style adjectives.<\/p>\n\n\n\n<h2 id=\"sources\" class=\"wp-block-heading\">\ucd9c\ucc98<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Specifications and prices checked October 13, 2026: <a href=\"https:\/\/ai.google.dev\/gemini-api\/docs\/models\/gemini-nano-banana-2.1?hl=en\">Google model reference<\/a>, <a href=\"https:\/\/ai.google.dev\/gemini-api\/docs\/image-generation?hl=en\">\uc774\ubbf8\uc9c0 \uc0dd\uc131 \ubb38\uc11c<\/a>, \ubc0f <a href=\"https:\/\/ai.google.dev\/gemini-api\/docs\/pricing?hl=en\">Gemini API \uc694\uae08<\/a>. The three GlobalGPT examples were generated on October 13, 2026. Cover illustration is separate from the Nano Banana test outputs.<\/p>\n\n\n\n<h2 id=\"frequently-asked-questions\" class=\"wp-block-heading\">\uc790\uc8fc \ubb3b\ub294 \uc9c8\ubb38<\/h2>\n\n\n\n<h3 id=\"faq-how-do-i-start-using-nano-banana-2-1\" class=\"wp-block-heading\">How do I start using Nano Banana 2.1?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Open an image generator that offers the model, select Nano Banana 2.1, enter a specific prompt, choose an aspect ratio and resolution, and generate a first draft. In GlobalGPT, start in the image workspace.<\/p>\n\n\n\n<h3 id=\"faq-is-nano-banana-2-1-free\" class=\"wp-block-heading\">Is Nano Banana 2.1 free?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Google lists no free tier for this model in its Gemini API pricing. Consumer app access, promotions, AI Studio allowances, and GlobalGPT credits are separate conditions. Check the chosen interface before generating.<\/p>\n\n\n\n<h3 id=\"faq-can-nano-banana-2-1-edit-an-existing-image\" class=\"wp-block-heading\">Can Nano Banana 2.1 edit an existing image?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Yes. Attach the image as a reference and describe what to preserve and what to change. Our product-photo edit changed the lighting while keeping the main bottle recognizable, although a secondary object shifted slightly.<\/p>\n\n\n\n<h3 id=\"faq-how-many-reference-images-can-it-use\" class=\"wp-block-heading\">How many reference images can it use?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Google documents up to 14 reference images, with consistency support for up to four characters and fidelity for up to ten objects. These are different limits and do not guarantee perfect preservation.<\/p>\n\n\n\n<h3 id=\"faq-does-nano-banana-2-1-support-4k\" class=\"wp-block-heading\">Does Nano Banana 2.1 support 4K?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Yes. Google lists 1K, 2K, and 4K output, with 1K as the default. Our three examples used 1K; we did not test 4K output.<\/p>\n\n\n\n<h3 id=\"faq-can-it-generate-readable-text\" class=\"wp-block-heading\">Can it generate readable text?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">It can generate readable text, but exact wording needs checking. Our bottle label and four infographic words were correct; the infographic omitted the four number prefixes requested in the prompt.<\/p>","protected":false},"excerpt":{"rendered":"<p>To use Nano Banana 2.1, choose the model in an image generator, describe the image you want, set the shape and resolution, and generate a first draft. To change that draft, attach it as a reference and specify what must stay the same. Start at 1K while you explore the idea. Move to a larger [&hellip;]<\/p>","protected":false},"author":7,"featured_media":20653,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"","_seopress_titles_title":"How to Use Nano Banana 2.1: Steps, Pricing & Examples","_seopress_titles_desc":"Learn how to use Nano Banana 2.1 on GlobalGPT: select the model, generate and edit images, compare pricing, and use prompts from three real examples.","_seopress_robots_index":"","footnotes":""},"categories":[7],"tags":[],"class_list":["post-20652","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ai-chat"],"acf":[],"_links":{"self":[{"href":"https:\/\/wp.glbgpt.com\/kr\/wp-json\/wp\/v2\/posts\/20652","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wp.glbgpt.com\/kr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wp.glbgpt.com\/kr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wp.glbgpt.com\/kr\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.glbgpt.com\/kr\/wp-json\/wp\/v2\/comments?post=20652"}],"version-history":[{"count":3,"href":"https:\/\/wp.glbgpt.com\/kr\/wp-json\/wp\/v2\/posts\/20652\/revisions"}],"predecessor-version":[{"id":20665,"href":"https:\/\/wp.glbgpt.com\/kr\/wp-json\/wp\/v2\/posts\/20652\/revisions\/20665"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wp.glbgpt.com\/kr\/wp-json\/wp\/v2\/media\/20653"}],"wp:attachment":[{"href":"https:\/\/wp.glbgpt.com\/kr\/wp-json\/wp\/v2\/media?parent=20652"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wp.glbgpt.com\/kr\/wp-json\/wp\/v2\/categories?post=20652"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wp.glbgpt.com\/kr\/wp-json\/wp\/v2\/tags?post=20652"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}