# Gemini Decision 1 now available on AI Gateway

Vercel added [Gemini Decision 1](<https://vercel.com/changelog/gemini-decision-1-now-available-on-ai-gateway>) from Google to AI Gateway. It's a multimodal decision model: instead of writing text, it answers typed questions with Boolean probabilities, choices, or scores, without generating output tokens.

You pass in some state, such as a support message, and ask questions about it. For example, "Does the customer request a refund?" comes back as a probability. You can use the same approach to route requests, check policies, filter agent tools, or rank results. Call it with google/gemini-decision-1 through the AI SDK, the TypeSafe-compatible API, or the Decisions API.

Input support depends on how you call it. PDF, audio, and video inputs work through AI SDK 7. The TypeSafe-compatible and Decisions APIs take text and images only.

Decision calls show up in AI Gateway logs and count toward your budgets alongside other model requests.

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