Gemini 3.1 Pro
Google's most advanced AI model — now available via API
2.5× stronger reasoning, 82% better agentic tool use, and native multimodal support. Access the official Google Gemini API through our platform.
What is Gemini 3.1 Pro?
Gemini 3.1 Pro is Google's latest frontier AI model, released on February 19, 2026. It delivers a 2.5× improvement in abstract reasoning over Gemini 3 Pro, scoring 77.1% on ARC-AGI-2 — a benchmark designed to test human-level reasoning that most models struggle with.
Built for complex, multi-step tasks, Gemini 3.1 Pro supports native multimodal inputs (text, images, video, audio, and code) with a 1M token context window and 64k output. Document processing is 50% more efficient. It's available through Google AI Studio, Vertex AI, and the Gemini API — and through our platform at the same official pricing.
Why Gemini 3.1 Pro
A step change in AI capability
Agentic Coding
80.6% on SWE-Bench Verified. Handles entire codebases, multi-file refactors, and long-horizon engineering tasks autonomously.
82% Better Tool Use
APEX-Agents 33.5%, MCP Atlas 69.2%, BrowseComp 85.9%. Gemini 3.1 Pro executes complex agentic workflows reliably.
1M Token Context
Process entire codebases, legal documents, research papers, or video transcripts in a single prompt. Document processing efficiency is 50% higher — no chunking needed. Up to 64k output tokens.
Native Multimodal
Text, images, video, audio, and code — all in one model. Generate animated SVGs from text, analyze video content, and more.
Capabilities
What Gemini 3.1 Pro can do
From PhD-level reasoning to full-stack code generation
Scientific Research
94.3% GPQA Diamond. Tackle graduate-level science questions, synthesize research papers, and reason through complex hypotheses.
Full-Stack Development
Write, debug, and refactor code across entire repositories. One user built a Windows 11-style web OS in a single prompt.
Abstract Reasoning
77.1% on ARC-AGI-2 — 2.5× better than Gemini 3 Pro. Solves novel problems that require genuine logical inference.
Autonomous Agents
Plan and execute multi-step tasks using tools, APIs, and browsers. 82% improvement in agentic tool use over the previous version.
Document & Data Analysis
Ingest massive datasets, financial reports, or legal contracts. Bring disparate data into a single coherent view.
Use Cases
Built for real work
Software Engineering
Navigate long-horizon tasks across entire codebases. Gemini 3.1 Pro maintains perfect context across thousands of files, making it ideal for large-scale refactoring and feature development.
Research & Analysis
Synthesize findings from hundreds of papers, generate data visualizations, and reason through complex scientific problems with PhD-level accuracy.
Business Intelligence
Reconcile data from multiple sources, generate executive summaries, and turn raw numbers into actionable insights — all within a single 1M-token context.
Creative & Multimodal
Generate animated SVGs from text prompts, analyze video content, process audio, and create dynamic UI components from high-level descriptions.
Benchmarks
Performance at a glance
Gemini 3.1 Pro leads across reasoning, coding, and multimodal benchmarks:
| ARC-AGI-2 | 77.1% (2.5× vs Gemini 3 Pro) |
| GPQA Diamond | 94.3% |
| Humanity's Last Exam | 37.5% (PhD-level reasoning) |
| SWE-Bench Verified | 80.6% |
| Terminal-Bench 2.0 | 68.5% |
| WebDev Arena | 1487 Elo |
| APEX-Agents | 33.5% (82% improvement) |
| BrowseComp | 85.9% |
| LMArena Elo | 1501 (state-of-the-art) |
| MathArena Apex | 23.4% |
| MMMU-Pro | 81% |
| Video-MMMU | 87.6% |
| Safety (SimpleQA Verified) | 72.1%, 30% fewer errors, low prompt-injection risk |
| Context Window | 1,000,000 tokens |
Why choose us
Official API, community pricing
We provide direct access to Google's official Gemini API. Same model, same quality — with a platform built for developers:
- ✓ Official Google Gemini API — not a wrapper or fine-tune
- ✓ Same pricing as Google AI Studio: $2/1M input, $12/1M output tokens
- ✓ Access Gemini 3.1 Pro, Gemini 3 Pro, and Gemini 3 Flash in one place
- ✓ Community support, tutorials, and developer resources included
Pricing
Simple, transparent pricing
Gemini 3.1 Pro is priced at $2.00 per million input tokens and $12.00 per million output tokens — identical to Gemini 3 Pro. For prompts over 200K tokens, pricing is $4.00/$18.00 per million tokens.
We provide access to the official Google Gemini API. Gemini3.1.com is an independent community platform and is not affiliated with Google LLC.
Timeline
Gemini 3.x release history
- November 2025: Gemini 3 Pro Preview released with 1M context, 1501 LMArena Elo
- January 2026: Gemini 3 Pro GA — reduced hallucinations, improved coding stability
- February 19, 2026: Gemini 3.1 Pro Preview — 2.5× reasoning, 82% better agentic tool use
- Coming: Gemini 3.1 Flash — faster and ~3× cheaper than 3.1 Pro
Get Started
Start using Gemini 3.1 Pro
Get API Access
Sign up and get your API key to access Gemini 3.1 Pro through our platform
Make your first call
Use model ID gemini-3.1-pro-preview with the standard Gemini API format
Build & scale
Integrate into your app, agent, or workflow — with 1M token context and full multimodal support
FAQ
Frequently Asked Questions
What is Gemini 3.1 Pro?
Gemini 3.1 Pro is Google's latest frontier AI model, released February 19, 2026. It delivers 2.5× stronger abstract reasoning than Gemini 3 Pro, with 77.1% on ARC-AGI-2, 94.3% on GPQA Diamond, and 80.6% on SWE-Bench Verified.
How is Gemini 3.1 Pro different from Gemini 3 Pro?
Gemini 3.1 Pro improves abstract reasoning by 2.5× (ARC-AGI-2: 77.1% vs 31.1%), agentic tool use by 82%, and adds a MEDIUM thinking mode. Pricing and context window remain the same.
What does Gemini 3.1 Pro cost?
Pricing is $2.00/1M input tokens and $12.00/1M output tokens (≤200K context). For longer prompts (>200K tokens): $4.00/$18.00 per million tokens.
What modalities does Gemini 3.1 Pro support?
Gemini 3.1 Pro natively supports text, images, video, audio, and code — all in a single model with a 1M token context window.
Is this the official Google Gemini API?
Yes, we provide access to the official Google Gemini API. Gemini31.com is an independent community platform and is not affiliated with or endorsed by Google LLC.
What are the best use cases for Gemini 3.1 Pro?
Gemini 3.1 Pro excels at agentic software development, scientific research, business data analysis, long-document processing, and complex multi-step reasoning tasks.
Ready to use Gemini 3.1 Pro?
Access Google's most capable AI model through our platform. Same official API, developer-friendly pricing.
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