Google's Gemini Decisions API outperforms TypeSafe's Jev on most shared benchmarks

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Google launched the Gemini Decisions API on November 11, powered by a new model called Gemini Decision 1 and available through Google AI Studio. The API scores bounded candidate answers in a single pass, offering yes/no, multiple-choice, and ordered-rubric question types. Google's own benchmark table shows Decision 1 beating TypeSafe's Jev 1.14 on five of the seven shared evaluations, though two of those wins are by under two points. The model also posts a notably lower calibration error than Jev, which the company frames as a key advantage for routing and gating decisions. The same chart shows Jev is cheaper overall across the shared benchmark suite.

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