HHarvey

Harvey says 80% of Am Law 100 firms and five of the Fortune 10 use its software, and investors valued the company at $15.5 billion in September 2026. The product drafts, reviews and researches legal documents, and runs prebuilt and custom agents for tasks such as redline analysis, due diligence tables and translation.

Founded in 2022 by Winston Weinberg and Gabe Pereyra, Harvey sells to law firms, in-house legal departments and professional services firms, almost always under enterprise contracts.

How It Works

Assistant is the chat interface: lawyers ask questions, draft and edit text and summarize long documents, with answers linked back to their sources. Vault stores thousands of documents for bulk review, using review tables, targeted questions and batch summaries. Workflow agents handle defined jobs such as redlining or translating a Word or PDF file, and an Agent Builder introduced in March 2026 lets teams create their own without code.

Harvey draws on knowledge sources including LexisNexis, EUR-Lex and EDGAR alongside web search and a firm’s own uploads. It reportedly lets users route work to models from Anthropic, Google and OpenAI, and connects with Microsoft 365 Copilot. Shared libraries of prompts, playbooks and workflows let firms standardize how practice groups use it.

Pricing

Harvey does not publish prices and sells through its sales team. Third-party reports describe annual, per-seat contracts with seat minimums and optional add-ons, though reported per-seat figures vary widely and could not be confirmed. There is no free plan or self-serve trial, and smaller firms should expect a sales process similar to other enterprise legal software.

What to Watch Out For

The cost and contract structure put Harvey out of reach for many solo lawyers and small practices. Like any generative AI tool, it can produce errors, so every output needs a lawyer’s review before it reaches a client or court. Harvey’s own help center notes that the system lacks real-time internet access beyond its connected sources and that its translations are not a substitute for certified translation. Firms should also check how matters and client data are segregated before uploading confidential files to Vault.

Recent News

Harvey raised $200 million at an $11 billion valuation in March 2026, in a round co-led by GIC and Sequoia. Six months later, on September 9, 2026, it announced a $550 million round at a $15.5 billion valuation co-led by Lightspeed and Diffusion, and acquired Guardrails AI, an AI agent security company and its fourth acquisition of the year.