HomeGeminiGemini 3.1 Pro

Gemini 3.1 ProLatest

Google's most advanced model — next-gen reasoning, coding, and multimodal intelligence.

Gemini 3.1 Pro, released in February 2026, is Google DeepMind's most capable AI model to date. Built on an enhanced sparse Mixture-of-Experts architecture, it delivers significant improvements over Gemini 3 Pro in reasoning, coding, mathematical problem-solving, and instruction following. It features a 2M token context window, 128K output tokens, native multimodal support across text, images, audio, video, and code, and improved agentic capabilities with more reliable multi-step tool use.

February 2026
$4.00 in / $18.00 out per 1M tokens
MoE architecture
2M tokens

Performance Scores

Gemini 3.1 Pro — Capability Radar

Strengths

2M token context window with 128K output tokens
State-of-the-art coding and agentic capabilities
Significant reasoning improvements over Gemini 3 Pro
Enhanced instruction following and reduced hallucinations

Weaknesses

Higher cost than Flash variants
Slower than Flash models due to deeper reasoning
Some advanced features still in preview

Use Cases

Large-scale codebase generation and refactoring
Complex multi-step agentic workflows
Advanced scientific research and analysis
Enterprise document understanding at scale

Example Demo

demo-preview.html

Example Prompts

Agentic code refactoring
Analyze this entire monorepo, identify code smells and architectural debt, then generate a complete refactoring plan with implementation.
Scientific research synthesis
Read these 50 research papers on protein folding and synthesize a comprehensive literature review with novel insights.
Full-stack code generation
Build a production-ready REST API with authentication, rate limiting, and comprehensive tests from this specification document.
Back to Gemini