Gemini 3.1 Pro Pricing
Google · Gemini 3 · Live
Gemini 3.1 Pro costs $2 per million input tokens and $12 per million output tokens on the Google API. Cached input reads are billed at $0.2 per million tokens. 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 November 4, 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 November 4, 2026.
- Input (per 1M tokens)
- $2
- Output (per 1M tokens)
- $12
- Cached input (per 1M tokens)
- $0.2
- Batch discount
- 50%
- Context window
- 2,000,000 tokens
- Max output
- 65,000 tokens
- Released
- February 19, 2026
Capabilities
Gemini 3.1 Pro supports extended reasoning, image input, tool use, long context.
Price history
See full Gemini 3.1 Pro price historyGemini 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 Superseded Gemini 2.5 Pro.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). [2026-10-08] Cache Read filled: $0.20 (≤200K; $0.40 above) per https://ai.google.dev/gemini-api/docs/pricing. Input/Output re-verified unchanged. [2026-11-01] Verification attempt produced no clear result — recheck next run. benchlm and mem0 still give $2/$12 (≤200K; $4/$18 above), but anotherwrapper (citing Google's pricing page, 'as of September 2026') lists $2.50/$15. No ai.google.dev read this run. Prices LEFT at $2/$12/$0.20.