# LegalBench

LegalBench is an AI benchmark; this page records what it measures and traces its data, grader, and scores to primary sources.

Evaluates legal reasoning across collaboratively contributed tasks covering varied legal domains and text formats.

## Details

- Address: Online, Global
- Website: [hazyresearch.stanford.edu/legalbench](<https://hazyresearch.stanford.edu/legalbench>)
- Tags: Helpful, Science
- Category: Reasoning
- Status: Active
- Data licence: unknown
- Data access: open
- Grader: mixed
- Organization: Stanford
- Released: 2023-08
- Paper: [arxiv.org/abs/2308.11462](<https://arxiv.org/abs/2308.11462>)
- Leaderboard: [hazyresearch.stanford.edu/legalbench](<https://hazyresearch.stanford.edu/legalbench>)
- Repository: [github.com/HazyResearch/legalbench](<https://github.com/HazyResearch/legalbench>)
- Task count: 162
- Top-score provenance: unknown
- ABI family: No

## Questions

### Where is LegalBench?

LegalBench is at Online, Global.

### How do I contact LegalBench?

To contact LegalBench, visit https://hazyresearch.stanford.edu/legalbench.

## Source

From [Benchmark primary sources](https://aibenchmarkindex.com/about), license CC0-1.0, checked 2026-10-15.

Last updated October 15, 2026.

## Links

- This benchmark on the [web page](<https://aibenchmarkindex.com/global/online/legalbench>)
- [Reasoning in Online](<https://aibenchmarkindex.com/global/online/category/reasoning.md>)
- [More benchmarks in Online](<https://aibenchmarkindex.com/global/online.md>)

> **Check before you compare.** Benchmark methods and leaderboards change. Follow the cited primary source before using a result in a decision.