Which AI model scores highest on HealthBench?

GPT-6 Astra by OpenAI holds the best HealthBench (hard, length-adjusted) result among tracked models, at 36.6% (released Sep 3 2026). Higher scores are better on this benchmark.

What are the top 3 models on HealthBench?

1. GPT-6 Astra (OpenAI) — 36.6%; 2. GPT-6 Luna (OpenAI) — 31.4%; 3. GPT-6 Sol (OpenAI) — 30.1%.

How many models have a published HealthBench score?

3 tracked models have a published HealthBench (hard, length-adjusted) score. Scores are collected from published lab reports and benchmark sources, with recorded sources credited alongside the results. We do not re-run the evaluations.

Healthcare

HealthBenchhard, length-adjusted

physician rubric score on the hard subset of the original HealthBench evaluation, adjusted for answer length

full set full set, length-adjusted hard hard, length-adjusted consensus consensus, length-adjusted

Rankings

Higher is better

HealthBench — frequently asked questions

: physician rubric score on the hard subset of the original HealthBench evaluation, adjusted for answer length
: GPT-6 Astra by OpenAI holds the best HealthBench (hard, length-adjusted) result among tracked models, at 36.6% (released Sep 3 2026). Higher scores are better on this benchmark.
: 1. GPT-6 Astra (OpenAI) — 36.6%; 2. GPT-6 Luna (OpenAI) — 31.4%; 3. GPT-6 Sol (OpenAI) — 30.1%.
: 3 tracked models have a published HealthBench (hard, length-adjusted) score. Scores are collected from published lab reports and benchmark sources, with recorded sources credited alongside the results. We do not re-run the evaluations.