Harvey

Harvey is an AI platform built for lawyers. You ask it legal questions, have it draft memos and clauses, and drop hundreds or thousands of documents into a Vault where it reviews them in a table, one question per column. It now also runs agents for multi-step matters, shared Spaces for working with clients and co-counsel, contract review, regulatory tracking and usage reporting for firm leaders. Big names use it, including A&O Shearman, Latham & Watkins, KKR and Bayer, and the company says more than 3,500 legal organisations are on it.

Pick Harvey if you run a large firm or legal department and want one tool across research, drafting and due diligence, with the security reviews and ethical walls that big clients ask for. CoCounsel is the better choice if your lawyers live in Westlaw and want answers grounded in its case law. Spellbook is far cheaper and simpler if the job is mostly drafting and redlining contracts in Word. Claude or ChatGPT on a business plan will cover a lot of basic legal drafting for a fraction of the price, without the legal-specific workflows.

The catch is price and access. Harvey publishes no prices, and widely reported figures sit around US$1,000 or more per lawyer per month with seat minimums and yearly contracts, so it is out of reach for most small firms. Some lawyers say it is a polished layer over general AI models, and quality can slip on very long documents. Every output still needs a lawyer to check it.

• Large law firms
• In-house legal teams
• Private equity
• Tax and advisory firms

Large law firms and corporate legal teams that want one AI platform across research, drafting and due diligence.

• Assistant

  Ask legal questions, draft memos and clauses, and summarise documents in plain chat.

• Vault

  Store large sets of documents and review them in a table, with one question per column and answers linked to the source.

• Agents and workflows

  Multi-step jobs such as diligence reports or contract comparisons, routed to purpose-built agents.

• Knowledge

  Research legal, regulatory and tax questions, with legal content partners such as LexisNexis available as add-ons.

• Spaces

  Shared workspaces with clients and co-counsel, with ethical walls between matters.

• Command Center

  Usage reports and benchmarks so firm leaders can see who uses it and for what.

• Our pick

  Enterprise

  Custom

  Large firms and legal departments buying for many lawyers.

  • Assistant, Vault, Knowledge and agents
  • SSO, admin controls and ethical walls
  • Onboarding and training from Harvey's team

Prices in USD unless noted, checked 22 October 2026. Vendors change plans often, so confirm on their site before you buy.

Ways Harvey can slot into your week.

1. 1

   Run due diligence faster

   Load a data room into Vault, ask the same questions of every contract (change of control, assignment, termination) and get a table you can check line by line.

2. 2

   Draft a first-cut memo

   Give it the facts and question, get a structured draft, then have a lawyer check every authority it cites.

3. 3

   Answer internal legal questions

   In-house teams use it to give business colleagues quick first answers on contracts and policy, with a lawyer signing off.

4. 4

   Track regulatory change

   Set up horizon scanning so the team hears about rule changes that affect clients or the business.

It sits next to your document management system and Microsoft Word, with a connector library for pulling in files. Many firms still keep Westlaw or Lexis for primary research and use Harvey for drafting and document review.

The closest alternatives to Harvey in the library, best rated first.

• 

  DataSnipper

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  Paradox

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• 

  Spellbook

  3.9

  Best for reviewing and redlining contracts in Word

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• 

  Booke AI

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