Harvey LAB (Legal Agent Benchmark)

Harvey's Legal Agent Benchmark: 2,010 public long-horizon legal tasks (24 practice areas plus contracts, diligence and firm-knowledge) producing memos, redlines, spreadsheets and decks from a document set; every rubric criterion graded by two LLM judges (Claude Sonnet 4.6 + GPT-5.5), a task passes only if all criteria pass. Official LAB harness and evaluator. Public set only: the Vals leaderboard uses Harvey's private held-out set, so scores are not directly comparable.