CalibratedDecisions.

Article · Benchmarks & research

Best Decision Model APIs in 2026

A ranked comparison of thirteen decision-model APIs as of October 2026, including Jev, OpenAI Decisions, Clef, Liquid d1, Kev, Perplexity Decider,…

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How builders describe it

A ranked comparison of thirteen decision-model APIs as of October 2026, including Jev, OpenAI Decisions, Clef, Liquid d1, Kev, Perplexity Decider, and Strands, scored on evidence, usage, and price.

The decision Jev makes

Benchmark questions with known answers, to check accuracy and confidence.

Where it fits

Head-to-head tests, calibration studies and independent research into how well Jev decides, how fast, and at what cost. All 682 benchmarks & research projects →

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