by Google
gemini-3.1-pro-preview-customtools For users who build applications mixing bash and custom tools, the Gemini 3.1 Pro preview provides a separate endpoint accessible via the API call gemini-3.1-pro-preview-customtools. This endpoint is better at prioritizing your custom tools (for example, view_file or search_code). Please note that while gemini-3.1-pro-preview-customtools is optimized for agent workflows that use custom tools and Bash, you may experience quality fluctuations in some use cases that cannot benefit from these tools.
gemini-3.1-pro-preview-customtools For users who build applications mixing bash and custom tools, the Gemini 3.1 Pro preview provides a separate endpoint accessible via the API call gemini-3.1-pro-preview-customtools. This endpoint is better at prioritizing your custom tools (for example, view_file or search_code). Please note that while gemini-3.1-pro-preview-customtools is optimized for agent workflows that use custom tools and Bash, you may experience quality fluctuations in some use cases that cannot benefit from these tools.
gemini-3.1-pro-preview-customtools has a 1,000,000 token context window.
On AIHubMix, gemini-3.1-pro-preview-customtools costs $2 per million input tokens and $12 per million output tokens. Cached input reads are billed at $0.5 per million tokens.
gemini-3.1-pro-preview-customtools accepts text, image, audio and video input.
gemini-3.1-pro-preview-customtools supports thinking, tool calling, function calling, structured outputs, web, deepsearch and long context. Per-protocol parameter support is listed in the capability table on this page.
gemini-3.1-pro-preview-customtools is available through the AIHubMix unified API. The API is OpenAI-compatible: point your OpenAI SDK at https://aihubmix.com/v1, use your AIHubMix API key, and set the model name to gemini-3.1-pro-preview-customtools — no other code changes needed.
gemini-3.1-pro-preview-customtools is developed by Google. AIHubMix aggregates it alongside models from other providers behind one API and one bill.
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Use gemini-3.1-pro-preview-customtools via the AIHubMix unified API — one interface for every major LLM.