DEEP REASONING · Google
Gemini 3.1 Pro Preview
Gemini 3.1 Pro Preview is a reasoning, tool-using model from Google in the Gemini family, living in The High Peaks (deep reasoning). It reads text, audio, files, images and video and writes text, with a 1.05M-token context window and up to 66K tokens of output. On OpenRouter it costs $2.00 per million input tokens and $12.0 per million output tokens.
See Gemini 3.1 Pro Preview in 3DOpen in the WorktableView on OpenRouter
Specifications
- Provider
- Family
- Gemini
- Province
- The High Peaks
- Context window
- 1.05M tokens
- Maximum output
- 66K tokens
- Input / 1M tokens
- $2.00
- Output / 1M tokens
- $12.0
- Accepts
- text, audio, files, images, video
- Produces
- text
- Reasoning
- Yes
- Tool use
- Yes
- Added to OpenRouter
- 2026-02-19
- Model ID
google/gemini-3.1-pro-preview- Price history
- —All recorded prices
From the 2026-10-24 catalog snapshot. Prices are US dollars per million tokens.
More Gemini models
- Gemini 4 Argon1.05M · $2.00 / $10.0
- Gemini 3.5 Flash1.05M · $1.50 / $9.00
- Gemini 2.5 Pro1.05M · $1.25 / $10.0
- Gemini 2.5 Pro Preview 06-051.05M · $1.25 / $10.0