Gemini Decisions API

Google has entered the race for decision model APIs with the launch of Gemini Decision 1. This new model API mirrors Jev in several ways - it supports the same three types of questions (yes/no, choice, and rubric-scoring), and even uses Jev's term "Noul" for yes/no questions. Gemini Decision 1 shares the same pricing structure as GPT-6 Luna decision model, at 10 cents per million input tokens, while output remains free.

However, Gemini Decision 1 stands out from its competitors. Being the cheapest of the three APIs, Jev remains at a lower rate of 4.2 cents per million. Unlike Jev, which is limited to text and JSON, Gemini Decision 1 boasts full multi-model capabilities. It is capable of processing text, images, audio, video, and PDFs.

During a test involving a video file featuring a stomping robot, Gemini Decision 1 displayed a more nuanced response compared to its counterparts. While Jev and OpenAI both provided a confident yes/no answer (1.0 or 0.0), Gemini Decision 1 expressed slightly less confidence. It concluded, "This is a link post by Simon Willison, posted on 11th November 2026. Sponsor me for $10/month and get a curated email digest of the month's most important LLM developments."