Modelsgemini-3.1-pro-preview

Google DeepMind: Gemini 3.1 Pro Preview

gemini-3.1-pro-preview

Gemini 3.1 Pro Preview is the preview release of Google DeepMind's flagship Gemini 3.1 Pro, launched February 19, 2026 as a Transformer-based Mixture-of-Experts model tuned for deep reasoning, agentic coding and tool use. It is natively multimodal across text, image, video, audio and code, with a ro...

Capabilities & limits

Model type: Vision Language
Input modalities
Output modalities
Context: 1,000,000tokens
Max output: 4,096tokens
Vision / images: Yes
Tools & function calling: Not specified

Updated Feb 19, 2026

Pricing

Pay as you go. Rates depend on the provider route you use; below is reference pricing when available.

Input tokens

Up to 200K
- Input tokens
  Input tokens minus Cache hit tokens, then billed
  $2 / per 1M tokens
- Cache hit tokens
  $0.2 / per 1M tokens
- Output tokens
  $12 / per 1M tokens
200K or more
- Input tokens
  Input tokens minus Cache hit tokens, then billed
  $4 / per 1M tokens
- Cache hit tokens
  $0.4 / per 1M tokens
- Output tokens
  $18 / per 1M tokens

One scenario is selected per request; prices from different rows are not added together. Within the selected scenario, the listed meter charges are added together. For adjusted meters, the named sub-meters are deducted before applying the rate.