Legal Agent Benchmark all-pass rate — Anthropic harness
Strict task success requiring every expert-written legal-work rubric criterion to pass.
1 models
Higher is better.
- 1Claude Opus 5Anthropic23.58
About this benchmark
- Metric
- All-criteria pass rate
- Tasks
- 1,235 legal-agent tasks
- Authors
- Harvey AI and Anthropic (2026)
Scores are as reported by model developers or evaluators and may use different settings (for example reasoning effort or tools). Compare with care.