Gemini 3.1 Pro Preview Custom Tools

gemini-3.1-pro-preview-customtools

Chat & Textby Google

Gemini 3.1 Pro Preview Custom Tools is a variant of Gemini 3.1 Pro that improves tool selection behavior by preventing overuse of a general bash tool when more efficient third-party or user-defined functions are available. 1,048,576 token context window, maximum output of 65,536 tokens.

chatstreamingvisionpdftoolsjson mode

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Details

Accepts: text
Context window: 1M tokens

Pricing

Input: 250 cr / 1M tokens
Output: 1500 cr / 1M tokens
Cached input: 25 cr / 1M tokens

Prices in credits (1 credit = $0.01).

Data schema

approximate

Input

Field	Type	Description
promptrequired	string	The text prompt.

Output

Field	Type	Description
text	string	Generated text (choices[0].message.content).