Gemini 3.1 Pro Preview
by Google
Gemini 3.1 Pro Preview is Google’s frontier reasoning model, delivering enhanced software engineering performance, improved agentic reliability, and more efficient token usage acro
Models
Gemini 3.1 Pro Preview
Added 10 July 2026
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-previewDocs
OpenRouter id: google/gemini-3.1-pro-preview
Benchmarks
- Intelligence Index (artificial-analysis): 29.7 index
- Coding Index (artificial-analysis): 68.8 index
- Agentic Index (artificial-analysis): 8.2 index
- Design Arena agenticgamedev (other): 1114 elo · #22
- Design Arena agentichtmlslides (other): 1226 elo · #4
- Design Arena agenticslides (other): 1112 elo · #7
- Design Arena agenticslides(html) (other): 1219 elo · #4
Notes
Gemini 3.1 Pro Preview is listed in the EDNA Models directory from the OpenRouter catalogue.
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