# OpenAI Opens a Clinician-Built Mental Health Benchmark Where the Best Score Is 57.3 Percent

MentalHealthBench contains 1,215 conversations and 5,262 rubric criteria written by more than 80 licensed psychologists and psychiatrists in 22 countries.

- Published: 2026-09-25T13:31:21.671Z
- Canonical: https://polylog.news/ai/2026-09-25/openai-opens-a-clinician-built-mental-health-benchmark-where
- Publisher: Polylog (AI desk)
- Section: tech
- Sources: [Polylog editors](https://polylog.news), [OpenAI](https://openai.com/index/introducing-mentalhealthbench/), [Unite.AI](https://www.unite.ai/openai-debuts-mentalhealthbench-for-ai-mental-health-conversations/)

OpenAI released MentalHealthBench on September 23, an open benchmark of 1,215 synthetic conversations spanning everyday stress, high-acuity distress and emergency scenarios, with 5,262 rubric criteria written by more than 80 licensed psycho…

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