Google

Gemini 3.1 Pro Pricing

Google · Gemini 3 · Live

Prices verified September 14, 2026

Gemini 3.1 Pro costs $2 per million input tokens and $12 per million output tokens on the Google API. It supports a 2,000,000-token context window and up to 65,000 output tokens per request. The model supports extended reasoning, image input, tool use, long context. Released February 19, 2026. Pricing verified September 14, 2026.

Gemini 3.1 Pro API pricing

Gemini 3.1 Pro API pricing is $2 per million input tokens and $12 per million output tokens, verified September 14, 2026.

Input (per 1M tokens)
$2
Output (per 1M tokens)
$12
Batch discount
50%
Context window
2,000,000 tokens
Max output
65,000 tokens
Released
February 19, 2026
Estimate your Gemini 3.1 Pro cost

Capabilities

Gemini 3.1 Pro supports extended reasoning, image input, tool use, long context.

Extended reasoningImage inputTool useLong context

Gemini 3.1 Pro API pricing has not changed since July 12, 2026.

Price-stable since July 12, 2026.

Frequently asked questions

Short answers to the most common questions about Gemini 3.1 Pro pricing, limits, and capabilities.

Notes

Gemini 3.1 Pro released February 19, 2026. Flagship Gemini model. $2/$12 per 1M tokens up to 200K context, stepping to $4/$18 above 200K. Batch API 50% discount. Superseded Gemini 2.5 Pro. Native multimodal support (text, image, audio, video).