A detailed review of Harvey AI — the most advanced legal AI platform used by top law firms globally. We cover capabilities, pricing, security, and who it's built for.
What Is Harvey AI?
Harvey AI is a legal AI platform built on customised large language models trained specifically on legal corpora. It handles contract drafting, due diligence, legal research, regulatory analysis, and M&A documentation. Used by A&O Shearman, PwC Legal, and dozens of AmLaw 100 firms.
Capabilities
Harvey's capabilities span the full legal workflow: drafting agreements, reviewing contracts against custom playbooks, conducting comparative legal analysis across jurisdictions, summarising documents for due diligence, and answering complex legal questions with citations.
Accuracy on Legal Tasks
In our contract review and legal research testing, Harvey outperformed general-purpose AI tools significantly on legal accuracy and nuance — correctly identifying risky clause variations and jurisdiction-specific issues that general models missed.
Security
SOC 2 Type II compliant. Harvey does not train its models on client data — essential for firms handling confidential client matters.
Pricing
Enterprise-priced via firm contract. Individual attorneys cannot subscribe independently.
Verdict
The most capable legal AI for large law firms and corporate legal departments. Its legal-specific training and security make it worth the enterprise investment for high-volume legal work. Solo practitioners should look at Casetext or Spellbook. Rating: ⭐ 4.8/5