Clinical Conversations Bench
Designed to test how a model asks relevant questions and offers a clear next step in a health conversation, with plain language and reasons for its answer.
Research
Published results from clinical benchmarks, and the benchmarks we build ourselves.
150 models · 25 labs · 10 boards
Data as of 23 Oct 2026
Each board is read on its own scale from 0 to 100. These are the weights and notes used in this snapshot.
Start with the weighted average over the boards a model has results on. Multiply that average by a confidence multiplier. The multiplier is full from six boards. Below six, divide the number of boards by six, then take the square root.
Coverage matters: models can have results on different boards. Read the index alongside that coverage and the conditions of each published result.
Data as of · Revision 7334
Method dated
89 tasks · 16 ranking entries
Snapshot
| Rank | Model / lab | Score bar | Score |
|---|---|---|---|
| 1 | Claude Fable 5.1Anthropic | 84.9 | |
| 2 | Claude Fable 5Anthropic | 83.8 | |
| 3 | Grok 4.6xAI | 81.3 | |
| 4 | Claude Opus 5Anthropic | 78.3 | |
| 5 | GPT-5.6 Sol (max)OpenAI | 77.9 | |
| 6 | Kimi K3Moonshot AI | 77.8 | |
| 7 | GPT-5.6 Sol (high)OpenAI | 77.7 | |
| 8 | Muse SparkMeta | 68.4 | |
| 9 | Gemini 3.6Google | 57.9 | |
| 10 | InklingThinking Machines | 53.9 | |
| 11 | Claude Sonnet 5Anthropic | 50.1 | |
| 12 | MiniMax M3MiniMax | 35.5 | |
| 13 | MAI ThinkingMicrosoft AI | 33 | |
| 14 | GLM 5.2Zhipu | 29.2 | |
| 15 | Mistral Medium 3.5Mistral | 14.4 | |
| 16 | Nemotron 3.5 LightningNVIDIA | 7.8 |
HOB publishes separate subject-suite and incretin evidence rankings. The snapshot above covers evidence-synthesis questions about incretin therapeutics. The subject-suite ranking uses a separate task set and scores.
The open-source harness and public sample let you inspect the tasks, rubric criteria and reference responses. A sample run is not expected to reproduce a full leaderboard score exactly.
In development
The benchmark is designed to examine decisions as information becomes available, including predictions recorded before test results are revealed.
The method follows an initial differential, findings and orders, expected test results, then a final diagnosis and plan. Results are designed to remain sealed until expectations are recorded. An early reveal can be recorded with its reason.
Designed to test how a model asks relevant questions and offers a clear next step in a health conversation, with plain language and reasons for its answer.
Designed to score a model against the outcome at follow-up, keeping what was predicted during the visit distinct from evidence obtained later.
Designed to compare machine transcription and translation with a human reference, checking clinical facts, speaker attribution, omissions and invented facts.
Published scores on physician-written clinical tasks. We maintain the results site; we do not run the benchmark.
Published results on the difficult subset of HealthBench, with document citations.
Published evaluations of models answering personal health questions, with its own index method.
Guides to rubric grading, model graders and reading benchmark results.
A glossary and question reference for healthcare AI evaluation.
Individual reference sites explain benchmark methods and show sourced result panels.