# Harvey open-sources the Legal Agent Benchmark: 1,200+ tasks graded by lawyers

Canonical page: https://technooptimist.io/stories/harvey-open-sources-the-legal-agent-benchmark-1-200-tasks-graded-by-0884e566
Date: 6 May 2026
About: [Harvey](https://technooptimist.io/companies/harvey.md) · [Harvey agents](https://technooptimist.io/ai/harvey-agents.md)
Original source: https://www.artificiallawyer.com/2026/05/06/harvey-launches-legal-agent-bench/

Harvey released LAB, an open benchmark of more than 1,200 agent tasks across 24 practice areas, graded by over 75,000 expert-written criteria. Test files hide planted issues to see if agents catch them. NVIDIA, OpenAI, Anthropic, Mistral and DeepMind backed the launch.

## Key facts

- A task counts as done only if every criterion passes.
- Anyone can run agents on it; Harvey invites labs, startups and firms to audit the rubrics.
- Head of Applied Research Niko Grupen: agents decompose a task, execute it and use data and tools.

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