Gemini 3.1 Pro & Deep Think Leaks: Google's New Move (Last 10 Days)
Latest leaks, benchmarks, and release dates for Google's highly anticipated Gemini 3.1 Pro and Deep Think models. The cards are being reshuffled in the AI world.
The AI world has been buzzing for the last 10 days. Leaks and rumors, especially from Google, point to a new model (or models) arriving very soon. Here is everything we know about Gemini 3.1 Pro and the mysterious Deep Think.
1. Leaks and Rumors (Last 10 Days – Very Hot)
Between February 11-13, 2026, a "Gemini 3.1 Pro Preview" listing was spotted in the Artificial Analysis Arena (shared by testingcatalog and synthwavedd). This discovery caused a huge stir on Reddit (r/Bard, r/singularity, r/GeminiAI) and X (Twitter).
Is Deep Think = Gemini 3.1 Pro?
This is the most common rumor right now. Many users and early access testers claim, "3.1 Pro is running behind Deep Think, which is why it's so slow but incredibly powerful."
- Theory 1: Google rebranded and released 3.1 Pro as "Deep Think".
- Theory 2: Deep Think is a separate model, but uses the 3.1 Pro infrastructure. A separate "3.1 Pro" version is still coming. (A thread on r/Bard received 300+ upvotes 6 days ago supporting this.)
Early Access Experiences
Some AI Studio and Vertex AI testers, along with select users, report trying Gemini 3.1 Pro as of today. For example, accounts like Lentils80 shared screenshots on February 19.
Initial comments are very positive:
"Less lazy than Gemini 3 Pro and much better at agentic tasks."
Release Expectation: When is it coming?
Polls asking "This week or tomorrow?" are circulating on Reddit and X.
- A few people claimed "Gemini 3 GA (General Access) tomorrow".
- The majority agree on "3.1 Pro preview this week".
However, since Sundar Pichai is currently in India, big announcements are not expected today (February 19).
2. Benchmark Leaks (Most Concrete Evidence)
The leak table shared by @mark_k on February 19 offers the most concrete data so far. The table looks like it's from Artificial Analysis, though it hasn't been verified yet.
Here is the leaked table:
| Benchmark | Gemini 3.1 Pro | Gemini 3 Pro | Gemini 3 Deep Think |
|---|---|---|---|
| Humanity’s Last Exam (no tools) | 39.8% | 37.5% | 48.4% |
| ARC-AGI-2 (Prize Verified) | 71.8% | 31.1% | 84.6% |
| GPQA Diamond (no tools) | 93.5% | 91.9% | — |
| AIME 2025 (no tools) | 100% | 95% | — |
| SWE-Bench Verified (single attempt) | 83.9% | 76.2% | — |
| LiveCodeBench Pro | 2,844 | 2,439 | — |
| MMMU-Pro | 84.4% | 81% | 81.5% |
| Terminal-Bench 2.0 | 63.5% | 54.2% | — |
| Vending-Bench 2 (agentic net worth) | — | — | $8,345 |
This chart is the most shared proof on X and Reddit (r/singularity, r/Bard). Many say "If this is real, 3.1 Pro beats OpenAI".
Analysis:
- Gemini 3.1 Pro establishes a clear superiority over the current 3 Pro version. It is near perfect, especially in coding and math tests (100% in AIME 2025!).
- Deep Think draws a profile of a true "thinking model". It dominates with an incredible score of 84.6% in the ARC-AGI-2 test, which requires logical reasoning. This success is thought to be powered by a "sub-agent" architecture.
3. Other Leaks: UI and Coding Capabilities
There are exciting leaks not just in benchmarks, but also on the user experience side.
- Videos circulating on Instagram and YouTube feature titles like "Leaked Gemini 3.1 Pro crushes the competition".
- It is said to give "instant" responses, especially in React/Tailwind coding.
- UI Generation: It is claimed to be pro-level, handling layout work entirely by itself and leaving very little work for the designer.
Stay tuned for updates. Google's official announcement could come at any moment.
