Gemini 3.1 Pro Preview

Overview

Gemini 3.1 Pro Preview is Google’s frontier reasoning model, delivering enhanced software engineering performance, improved agentic reliability, and more efficient token usage across complex workflows. Building on the multimodal foundation...

How to use / API access

Call via OpenRouter with model id `google/gemini-3.1-pro-preview`.

• openrouter · google/gemini-3.1-pro-preview Docs

OpenRouter id: google/gemini-3.1-pro-preview

Benchmarks

• Intelligence Index (artificial-analysis) : 46.5 index
• Coding Index (artificial-analysis) : 68.8 index
• Agentic Index (artificial-analysis) : 21.4 index
• Design Arena agenticgamedev (other) : 1142 elo · #10
• Design Arena agentichtmlslides (other) : 1226 elo · #5
• Design Arena agenticslides (other) : 1112 elo · #8
• Design Arena agenticslides(html) (other) : 1219 elo · #5

Notes

Gemini 3.1 Pro Preview is listed in the EDNA Models directory from the OpenRouter catalogue.