Simon Willison Compares Google’s Gemini Decision 1 API

What happened

Simon Willison reports that Google has joined Jev and OpenAI in the decision model category with Gemini Decision 1. He compares its question types and pricing with the other models, and says Gemini Decision 1 handles text, images, audio, video, and PDFs. In a test using a robot video, it returned probabilities below 1.0 for yes-or-no questions.

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Reported by 6 sources

The story so far

Google launched the Gemini Decisions API, powered by Gemini Decision 1, for scoring up to 1,000 questions in one request. It returns answers with confidence scores for yes-or-no, multiple-choice questions with up to 255 options, and rubric scoring across text, images, audio, video, and PDFs. The API costs $0.10 per million input tokens with no output-token charge; Google says it also has a free tier with limits of 200 requests per minute and 10,000 per day. Google says free-tier data may be used to improve its products, while paid-tier data will not. The API is available through Google AI Studio. Google Cloud support is planned for later. It does not support context caching or the Batch API, and users cannot submit YouTube links directly.