# PhysicianBench

> A public benchmark of 100 physician tasks carried out inside an electronic health record system.

Canonical page: https://benchlm.ai/benchmarks/physicianbench

- Category: [Knowledge](/knowledge)
- Last updated: November 11, 2026

## About PhysicianBench

- Year: 2026
- Tasks: 100 EHR physician tasks
- Format: Pass rate
- Difficulty: Clinical agent work
- Paper: [Claude Fable 5.2 and Claude Mythos 5.2 system card](https://assets.claude.com/27d60918d218125e7504bc7354c4b4626ec56b11.pdf)

Anthropic reports the share of attempts passed over 100 tasks with five attempts each (one for GPT-6 Astra), at max effort. BenchLM first added PhysicianBench from the Claude Fable 5.2 system card and keeps it display-only.

PhysicianBench is currently displayed on BenchLM for reference, but it is excluded from the weighted scoring formula.

## Leaderboard (5 models)

| Rank | Model | Creator | Score |
|------|-------|---------|-------|
| 1 | [Claude Opus 5.5](/models/claude-opus-5-5) | Anthropic | 68.4% |
| 2 | [Claude Fable 5.2](/models/claude-fable-5-2) | Anthropic | 64.4% |
| 3 | [Claude Sonnet 5.5](/models/claude-sonnet-5-5) | Anthropic | 63.2% |
| 4 | [Claude Fable 5.1](/models/claude-fable-5-1) | Anthropic | 61.0% |
| 5 | [GPT-6 Astra](/models/gpt-6-astra) | OpenAI | 48.0% |

## FAQ

### What does PhysicianBench measure?

A public benchmark of 100 physician tasks carried out inside an electronic health record system.

### Which model scores highest on PhysicianBench?

Claude Opus 5.5 by Anthropic currently leads with a score of 68.4% on PhysicianBench.

### How many models are evaluated on PhysicianBench?

5 AI models have published results on PhysicianBench in the BenchLM catalog.

### Does PhysicianBench affect BenchLM's overall score?

Not directly. PhysicianBench is still displayed on BenchLM for reference, but it is excluded from the weighted scoring formula.

## Compare Top Models on PhysicianBench

- [Claude Opus 5.5 vs Claude Fable 5.2](/compare/claude-fable-5-2-vs-claude-opus-5-5)
- [Claude Fable 5.2 vs Claude Sonnet 5.5](/compare/claude-fable-5-2-vs-claude-sonnet-5-5)
- [Claude Sonnet 5.5 vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-claude-sonnet-5-5)
- [Claude Fable 5.1 vs GPT-6 Astra](/compare/claude-fable-5-1-vs-gpt-6-astra)