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Checked fact 460312 Nov 2026Models and releases

The Decisions API guide says it "evaluates typed questions against your data using Gemini Decision 1 and returns calibrated probabilities. It generates zero text tokens, so output token usage is always 0." Its Limitations section says it is available on the Gemini Developer API (v1beta) with Gemini Decision 1 only.

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The exact words it rests on

The Decisions API evaluates typed questions against your data using [Gemini Decision 1](/docs/models/gemini-decision-1) and returns calibrated probabilities. It generates zero text tokens, so output token usage is always 0. ... ## Limitations {% id="limitations" %} * Available on the Gemini Developer API (v1beta) with [Gemini Decision 1](/docs/models/gemini-decision-1) only.

What the source said when we opened it, on 12 Nov 2026.

The source

Decisions API guide, Gemini API docs
Google

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Checked

Checked by the notis newsroom on , against the source above.

In the story

Google releases Gemini Decisions API, which returns probabilities for up to 1,000 questions 12 Nov 2026

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