Harvey

Harvey is an enterprise-grade legal AI platform built in deep partnership with OpenAI, designed for AmLaw 100 firms and Fortune 500 legal departments. Valued at $11 billion as of March 2026, it has served more than 100,000 legal professionals and is used by 60+ top law firms.

Core Capabilities

• Assistant: A conversational interface for complex legal questions, document analysis, and drafting
• Vault: Handles M&A due diligence and compliance audits at the scale of 100k+ documents
• Knowledge: Researches complex legal, regulatory, and tax questions with authoritative citations
• Workflow Agents: Automates repetitive legal processes such as deposition analysis and contract review
• Deep integrations: Connects seamlessly with Microsoft 365, LexisNexis, iManage, and other mainstream tools
• Enterprise-grade security: Compliant with SOC2, ISO 27001, GDPR, and more

Use Cases M&A due diligence at large law firms, bulk contract review for in-house legal teams, and document analysis for litigation teams. If your team handles large-scale documents and has an enterprise budget, Harvey is built for you.

Unique Advantages While other legal AI tools remain single-feature, Harvey delivers a full-stack solution. Vault's 100k+ document processing capacity and OpenAI custom model support leave it with almost no rivals in ultra-large-scale document scenarios.

Editor's Review Endorsements from top law firms confirm its competitiveness at the high end, but pricing above $1,000 per user per month and the "wrapped GPT" criticism put smaller firms off. It suits large legal teams with budget and complex workflows; smaller firms should consider more cost-effective alternatives.