Model prices / Google / Gemini 3.1 Pro Preview Custom Tools
Gemini 3.1 Pro Preview Custom Tools
Google · released 2026-02-19
The official API price of Gemini 3.1 Pro Preview Custom Tools is $2 per 1M input tokens and $12 per 1M output tokens (as of 2026-11-12). Context window: 1.05M tokens, up to 65.5K output tokens per request. 12 providers sell it, none below the official price.
Price by providerUSD per 1M tokens
| Provider | Input | Output | Cached | Notes | |
|---|---|---|---|---|---|
| GoogleOfficialTiered pricinggemini-3.1-pro-preview-customtools | $2 | $12 | $0.2 | OfficialTiered pricing | Official docs |
 AIHubMixTiered pricinggemini-3.1-pro-preview-customtools | $2 | $12 | $0.2 | Tiered pricing | Official docs |
EEden AITiered pricinggoogle/ | $2 | $12 | $0.2 | Tiered pricing | Official docs |
 VertexTiered pricingBetagemini-3.1-pro-preview-customtools | $2 | $12 | $0.2 | Tiered pricingBeta | Official docs |
KKilo Gatewaygoogle/ | $2 | $12 | $0.2 | Official docs | |
MMerge GatewayTiered pricinggoogle/ | $2 | $12 | $0.2 | Tiered pricing | Official docs |
NNanoGPTgoogle/ | $2 | $12 | $0.2 | Official docs | |
NNeonTiered pricinggemini-3-1-pro | $2 | $12 | $0.2 | Tiered pricing | Official docs |
 OpenRouterTiered pricinggoogle/ | $2 | $12 | $0.2 | Tiered pricing | Official docs |
TTempr GatewayTiered pricinggoogle/ | $2 | $12 | $0.2 | Tiered pricing | Official docs |
 AI/ML APIgoogle/ | $2.116 | $12.696 | $0.2116 | Official docs | |
OOrcaRoutergoogle/ | $4 | $18 | $0.4 | Official docs |
Providers are those listed by models.dev. This site has not vetted them one by one; each provider's own page has the binding price.
About
Advanced Gemini model for complex reasoning, coding, and multimodal analysis
Description from models.dev.
Specs
- Type
- Text
- Context
- 1.05M
- Max output
- 65.5K
- Input
- Text, Image, Video, Audio, PDF
- Output
- Text
- Reasoning
- Yes
- Tool calling
- Yes
- Structured output
- Yes
- Knowledge cutoff
- 2025-01
- Open weights
- No
- Released
- 2026-02-19
Source
Prices and specs come from models.dev (MIT licence), updated 2026-11-12. Each provider's name links to its official docs. A provider priced at 0 usually includes the model in a subscription; it is not necessarily a free API.