Google: Gemini 3.1 Pro Preview Custom Tools (google/gemini-3.1-pro-preview-customtools) costs $2 per 1M prompt tokens and $12 per 1M completion tokens, has a 1,048,576-token context window, and supports tool calling, structured outputs, reasoning and response format. Data updated 2026-10-30.
- Prompt price
- $2 / 1M tokens
- Completion price
- $12 / 1M tokens
- Context
- 1,048,576 tokens
- Input modalities
- text, audio, image, video, file
- Output modalities
- text
- Tokenizer
- Gemini
- Instruct type
- —
- Knowledge cutoff
- —
- Hugging Face
- —
Last price change: 2026-02-26
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...
Price history
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