Gemini 3.1 Pro vs Gemini 3 Pro: The 2026 Ultimate Review

Gemini 3.1 Pro is the newest and smartest version of Google’s AI. It is twice as good at solving hard puzzles and logic problems compared to Gemini 3 Pro, scoring a huge 77.1% on the ARC-AGI-2 test. Even though Gemini 3 Pro is powerful, many people in 2026 get frustrated because it sometimes takes too long to “think” or makes mistakes when trying to finish big, complex tasks.

When the AI gets confused, it slows down your work. GlobalGPT solves this problem by giving you the full power of Gemini 3.1 Pro and its Mode réflexion approfondie in one easy place. For only $10.8 (Pro Plan), you get everything you need without paying for the super expensive $249 official “Ultra” subscription. You can also use the best video makers like Sora 2 Flash, Veo 3.1, and Kling right next to it.

GlobalGPT helps you finish your whole project from start to finish. You can use Gemini 3.1 Pro to plan your ideas, then use ChatGPT 5.2, Claude 4.6, ou Nano Banane Pro to write your text and create amazing pictures. You don’t have to jump between ten different websites anymore — you can do every step of your project on one simple dashboard.

Gemini 3.1 Pro vs Gemini 3 Pro: Is It More Than a Simple “Point One” Update?

In the world of software, a “.1” update usually just means the developers fixed a few bugs or changed a button color. But for Gemini 3.1 Pro (released in February 2026), that “0.1” represents a massive technical leap. If Gemini 3 Pro was the pioneer that opened the door to the “Agentic Era,” Gemini 3.1 Pro is the expert that actually knows how to live in it.

The most important change is how Google talks about these models. Gemini 3 Pro was marketed as having “Advanced Intelligence.” Just three months later, Gemini 3.1 Pro is described as having “Unprecedented Depth and Nuance.” This isn’t just marketing talk—it refers to the AI’s ability to handle “Extreme Reasoning.”

Why 3.1 is a “Strict Upgrade”

Technically, Gemini 3.1 Pro is a “Strict Upgrade.” This means it does everything 3.0 can do, but better, faster, and more reliably—without costing a penny more in API fees. While Gemini 3 Pro focused on “Vibe Coding” (turning simple ideas into apps), Gemini 3.1 Pro focuses on “System Synthesis.” It can manage complex tools, follow longer instructions without getting “confused,” and provide answers that feel like they came from a human expert rather than a computer program.

Solving the “Frustration Gap”

Many users in 2026 find that while Gemini 3 Pro is smart, it can sometimes struggle with “Long-Horizon Tasks”—projects that require the AI to remember 50 different steps over an hour of work. Gemini 3.1 Pro was built specifically to close this gap. It is significantly more stable, meaning it won’t “lose the thread” of your conversation or fail to call a tool (like a search engine or a calculator) when it’s needed.

On GlobalGPT, we recognize that you shouldn’t have to pay $249/month for a Google Ultra subscription just to get this level of stability. Our $10.8 Pro Plan gives you immediate access to this “logic powerhouse,” allowing you to use Gemini 3.1 Pro as the “brain” of your project while our other 100+ models handle the visuals and the drafting.

Why Gemini 3.1 Pro Doubled the ARC-AGI-2 Reasoning Score

The biggest news about Gemini 3.1 Pro is its logic brain. There is a famous test called ARC-AGI-2. It tests if an AI can solve a puzzle it has never seen before.

• Gemini 3 Pro Score: 31.1%
• Gemini 3.1 Pro Score: 77.1%

That is a 2.5x increase! It also beats other famous models like Claude Opus 4.6. This is why 3.1 Pro is much better at reducing hallucinations (making up fake facts). In the “SimpleQA Verified” test, it reached 72.1% accuracy, making it one of the most honest AIs you can use today.

Gemini 3.1 Pro for Developers: Solving the “Agentic Coding” Pain Point

For people who build apps, the new model is a lifesaver. It fixes the biggest problem with AI coding: consistency. Gemini 3.1 Pro scores 68.5% on Terminal-Bench 2.0, which means it’s much better at using a computer’s command line to fix bugs.

One cool new feature is the customtools endpoint. This makes the AI prioritize your specific coding tools, so it doesn’t get confused during long projects. It can even generate animated SVG code. Instead of a heavy video file, the AI writes simple code that makes a crisp, moving animation for your website.

Gemini 3.1 Pro vs Gemini 3 Pro: Who Wins the 100MB Upload and 65K Output Battle?

If you work with big documents, you will love the new limits. Gemini 3 Pro was good, but it often cut off your work if it was too long.

• Bigger Uploads: You can now upload files up to 100MB (5x more than before).
• Longer Answers: It can write up to 65,000 tokens in one go. You can generate a whole manual in seconds.
• YouTube Support: You can just paste a YouTube link, and the AI will “watch” and analyze it for you instantly.

GlobalGPT makes using these features even better because you can quickly switch to Sora 2 or Nano Banana Pro once you finish your research with Gemini.

Gemini 3.1 Pro Thinking Levels: How to Choose Between Speed and Smarts

Sometimes you need a quick answer, and sometimes you need the AI to “brainstorm” for a few minutes. Gemini 3.1 Pro gives you a special “thinking slider” with three levels: Low, Medium, and High. This helps you control how much effort the AI puts into your request.

Low Mode is built for speed. If you need to fix a quick typo, translate a simple sentence, or summarize a short email, use this. It responds almost instantly and is very efficient.

Medium Mode is the “sweet spot” for most users. Here is a secret: Gemini 3.1 Pro in Medium Mode is just as smart as the old Gemini 3 Pro was in its highest mode. This means you get elite-level intelligence but with much faster response times. It is perfect for writing complex code or doing deep research.

High Mode (Deep Think Mini) is for the hardest problems on earth. If you are working on a Ph.D. science project or a world-class math puzzle, turn this on. The AI will take extra time to double-check its logic and look for hidden mistakes. It is the most powerful reasoning tool Google has ever built.

Pricing Breakdown: Google AI Ultra ($249) vs GlobalGPT ($10.8)

The Official Barrier: High Costs and Region Locks

To get the full power of Gemini 3.1 Pro (Ultra), Google currently charges $249.99 per month. This plan is required to unlock the most advanced reasoning, the highest video generation limits, and the specialized Deep Think mode.

Beyond the price, there is a “hidden” barrier: Region Restrictions. Many countries still cannot access the Ultra plan, and even if you can, Google often requires specific international credit cards that are hard to get. For most people, the official site feels like a “closed club.”

The GlobalGPT Solution: All-in-One Access

GlobalGPT changes the game by making world-class AI accessible to everyone. Instead of paying hundreds of dollars for a single model, you can get the GlobalGPT Pro Plan for just $10.80.

• Elite Intelligence: You get the same Gemini 3.1 Pro and Deep Think capabilities used by top scientists.
• Massive Model Library: Access 100+ industry-leading models like ChatGPT 5.2, Claude 4.5, and Perplexity in one place.
• No Restrictions: There are zero region locks. Whether you are in Asia, Europe, or the Americas, it works perfectly.
• Paiement facile : You don’t need a special high-limit credit card; we support easy, flexible payment options for everyone.

From Idea to Movie: How To Use Gemini 3.1 Pro to Direct Sora 2 and Nano Banana Pro?

The best part of using GlobalGPT is the Full-Cycle Workflow. You don’t just get a chatbot; you get a creative factory.

Imagine this: You use Gemini 3.1 Pro to research a story and write a complex script. Then, without leaving the page, you send that script to Sora 2 to make a cinematic video. Finally, you use Nano Banana Pro to create a poster for your project. You can do everything in one place, saving you hours of time.

Final Verdict: Which Gemini Model Should You Choose in 2026?

Picking the right AI is all about using the right tool for the job. Here is a quick guide to help you decide:

• Gemini 3 Pro (The Daily Assistant): Best for emails, quick summaries, and daily tasks. It’s fast and cost-effective on the GlobalGPT Basic Plan ($5.8).
• Gemini 3.1 Pro (The Professional Builder): Best for coding, big data, and long reports. It handles 100MB uploads and complex logic without breaking a sweat.
• Deep Think Mode (The Mastermind): Best for Ph.D.-level math, science, and spotting tiny logical errors. It is the world champion of “extreme reasoning.”

L'avantage GlobalGPT

Why pay for multiple subscriptions? On the GlobalGPT Pro Plan ($10.8), you get all these models on one dashboard. You can use Gemini 3.1 Pro to write a script and immediately send it to Sora 2 or Veo 3.1 to create a video. It is the most affordable way to access the entire 2026 AI lineup in one place.

Foire aux questions (FAQ)

• What is the knowledge cutoff for Gemini 3.1 Pro? It knows facts up to January 2025. However, because it is integrated with real-time search on GlobalGPT, it can browse the live web to give you accurate news and data from 2026.
• Can I use Gemini 3.1 Pro for free? You can use it with very small daily limits on some official sites, but you will often hit “model overloaded” errors. For professional work with high limits and zero restrictions, the GlobalGPT Pro Plan ($10.8) is the best and most stable deal.
• Does it support 3D art and game design? Yes! Gemini 3.1 Pro is a master of “Vibe Coding.” It can write complex code for 3D Voxel art and GLSL Shaders, allowing you to build playable mini-games or interactive 3D visuals with just one prompt.
• Is Gemini 3.1 Pro better than GPT-5.2 for coding? It’s a close battle! While GPT-5.2 is great for logic, Gemini 3.1 Pro wins on Context. Because it can handle 100MB of code at once, it can see your entire project, whereas other models might “forget” the beginning of your file.
• Why is the “High” thinking mode slower than others? The “High” mode (Deep Think Mini) uses Chain-of-Thought reasoning. The AI actually “talks to itself” to verify its logic before showing you the answer. This prevents mistakes in math and science, but it takes a few extra seconds to finish.
• Can Gemini 3.1 Pro analyze my local PDF files? Yes. Unlike older versions that had small limits, 3.1 Pro supports 100MB PDF uploads. You can upload massive legal contracts or medical textbooks, and it will summarize them perfectly without losing details.
• How do I get Gemini 3.1 Pro if it’s blocked in my country? Google’s official Ultra plan has many region locks. GlobalGPT removes these barriers. You can access the full power of Gemini 3.1 Pro from anywhere in the world without needing a VPN or a specific international bank card.