Vercel adds Google’s Gemini Decision 1 to AI Gateway
Vercel has made Google’s Gemini Decision 1 available through AI Gateway, giving developers a multimodal model for making decisions from text, images, audio, video and PDF documents. The model returns Boolean probabilities, choices and scores without generating output tokens.
- Gemini Decision 1 is now available on Vercel AI Gateway.
- The model accepts text, images, audio, video and PDF documents.
- It returns Boolean probabilities, choices and scores without output tokens.
- Developers can access it through the AI SDK, TypeSafe-compatible API or Decisions API.
- Decision calls appear in logs and count toward AI Gateway budgets.
A model for routing and filtering
Gemini Decision 1 is designed for tasks where an application needs to evaluate information and select an outcome rather than produce a conventional text response. According to Vercel, developers can use it to route requests, check policies, filter agent tools and rank results.
These capabilities can support decision points inside applications and agent workflows. For example, a developer could ask whether a customer is requesting a refund, then use the result to determine what happens next. Vercel’s example uses the state, “I was charged twice. Please refund the duplicate charge,” and defines a Boolean question called requestsRefund.
Multimodal inputs and developer access
Gemini Decision 1 works with text, images, audio, video and PDF documents. Developers can use the model as google/gemini-decision-1 with the AI SDK, the TypeSafe-compatible API or the Decisions API.
Input support varies by interface. Vercel says PDF, audio and video inputs are supported through AI SDK 7. The TypeSafe-compatible and Decisions APIs support text and image inputs. The announcement also points developers to documentation covering Choice, Score and Boolean questions.
Vercel’s example imports experimental_decide from the AI SDK, sends a state and a set of questions, then logs the answer returned for the Boolean question. This shows how the model can be integrated as a decision step within an application rather than as a general response generator.
Usage appears alongside other AI Gateway requests
AI Gateway provides a unified way to access models and track usage and cost, according to Vercel. Decision calls appear in logs and count toward budgets alongside other model requests, giving teams a way to include these operations in the same monitoring and budget controls.
For developers already using AI Gateway, the addition offers another model option for structured evaluation tasks. They can browse the available models or read Vercel’s decision model guides when choosing a decision model. The announcement does not provide performance figures or pricing details for Gemini Decision 1.
Vercel: Gemini Decision 1 now available on AI Gateway
