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Googleapi
November 11, 2026·Source

Gemini Decisions API

A Gemini API built to make quick yes/no, pick-one, and grading calls without generating any text, for developers building apps and agents.

Gemini Decisions API announcement image

Details

  • Runs on a new model, Gemini Decision 1 (gemini-decision-1), which returns binary, categorical, or rubric-based decisions instead of written output
  • Up to 1,000 questions can be evaluated in a single request, all against one shared input
  • That shared input can be text, images, audio, video, or PDFs
  • Priced at $0.10 per 1M input tokens with $0 for output tokens, since nothing is generated. Available now through the Gemini API with a key from Google AI Studio

Best for

Fast routing, tool selection, safety checks, and grading steps inside an app or agent.

When to use it

When a step only needs a decision, such as which tool to call or whether an answer passes a rubric, and a full text response would be slower and cost more.

Who benefits

Developers building agents and review pipelines on the Gemini API.

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