Harvey AI
PaidEnterprise generative AI platform built specifically for large law firms and professional services
What is Harvey AI?
Harvey is the best-funded and most widely deployed enterprise generative AI platform for large law firms and professional services organizations. Built on top of frontier models from OpenAI and Anthropic, Harvey is customized for the workflows of sophisticated legal work: contract review, legal research, drafting, due diligence, litigation analysis, regulatory analysis, and matter management. The company has raised over $500 million at a multi-billion-dollar valuation and is used by many of the world's largest law firms — including Allen & Overy, PwC, A&O Shearman, and hundreds of other Am Law and magic-circle firms. Harvey's differentiation is not a single model; it is the combination of secure enterprise infrastructure, deep integrations into the tools lawyers already use (iManage, NetDocuments, Microsoft 365, contract lifecycle platforms), and workflows designed for how partners and associates actually work. Harvey recently launched assistants for specific practice areas (M&A, tax, litigation, corporate, IP) and a workflow builder so firms can create custom agents for repetitive tasks like diligence reviews, second requests, and policy mapping. Harvey is sold exclusively through enterprise contracts; there is no self-serve version, no free trial, and no public pricing. Deployments typically include a pilot with a subset of lawyers, firmwide rollout over several months, and heavy training from Harvey's customer success team. Harvey is considered the category leader in enterprise legal AI by most industry analysts and legal tech observers.
⚡ Quick Verdict
Am Law and magic-circle firms, Big Four professional services, and large corporate legal departments
Solo practitioners or small firms looking for affordable legal AI
Enterprise per-seat annual subscription · Custom quotes
No — enterprise sales only
Category-leading generative AI built around how large law firms actually work
Not available to small firms or individual lawyers
Bottom line: Harvey scores 4.6/5 — the clear leader in enterprise legal AI for large law firms, with the deepest integrations, most mature workflows, and strongest customer list.
Pricing
Contact sales: Harvey does not publish pricing. It is sold as an enterprise per-seat annual subscription to law firms and professional services organizations. Industry reports suggest Harvey pricing runs in the low thousands of dollars per lawyer per year for large firms, with multi-year commitments and volume-based discounts. Total contract values at large firms frequently reach seven figures.
Bundled services: Contracts typically include implementation, integration with iManage and NetDocuments, training, and dedicated customer success.
Trials: Harvey runs structured pilots with subsets of a firm's lawyers before firmwide rollout. There is no self-serve signup and no free version available to the public.
Key Features
- Generative AI built on OpenAI/Anthropic frontier models
- Practice-area assistants for M&A, litigation, tax, IP, and more
- Workflow builder for custom legal agents
- iManage and NetDocuments deep integration
- Contract review, due diligence, and drafting workflows
- Legal research and memo generation
- Secure enterprise infrastructure with no model training on firm data
- SOC 2 Type II, ISO 27001, and GDPR compliance
Pros & Cons
Pros
- Widely considered the leading enterprise legal AI platform
- Deep integrations with the tools lawyers already use
- Practice-area assistants cover most core workflows
- Strong security posture for sensitive firm data
Cons
- Enterprise only — no self-serve or free option
- Premium pricing accessible mainly to Am Law and large corporate legal teams
- Implementation and change management can be significant
FAQ
What does Harvey AI actually do?
Harvey is a generative AI platform tailored for legal work at large firms. Lawyers use it for drafting, legal research, contract review, due diligence, regulatory analysis, and matter summarization. Instead of exposing a raw chat interface to frontier models, Harvey wraps those models in legal-specific workflows, guardrails, and integrations with tools like iManage, NetDocuments, and Microsoft 365 so partners and associates can do real work without leaving their document management environment.
Which law firms use Harvey?
Harvey is deployed at many of the world's largest and most prestigious law firms, including Allen & Overy (now A&O Shearman), PwC, and a large portion of Am Law 100 firms. Its customer list has grown rapidly since launch and now spans Big Four professional services, magic-circle UK firms, large US firms, and a growing number of in-house legal departments at Fortune 500 companies.
Is Harvey secure enough for privileged work?
Harvey is built for privileged and highly sensitive work. It offers SOC 2 Type II and ISO 27001 compliance, does not train its base models on customer data, supports tenant isolation and encryption, and signs enterprise contracts that respect privilege and confidentiality. Large law firms conduct extensive security reviews before deployment, and Harvey has cleared most of those reviews at the world's most demanding firms.
How much does Harvey cost?
Harvey does not publish pricing. Industry reports suggest low-thousands-of-dollars-per-lawyer-per-year range for large firms, with multi-year enterprise contracts and volume discounts. Total contract values at Am Law firms frequently reach seven figures. Implementation, integration, and training are typically included. Small firms and solos are not the target market and usually cannot access Harvey directly.
Does Harvey integrate with iManage and NetDocuments?
Yes. iManage and NetDocuments are first-class integrations, which is essential for large law firms where those platforms are the system of record for documents. Harvey can read matter-specific documents, return grounded answers, and save drafts back to the correct workspace. Microsoft 365, Outlook, and common contract lifecycle platforms are also supported, extending Harvey's footprint across the lawyer's daily workflow.
Harvey vs CoCounsel vs Lexis — how do they compare?
Harvey is positioned as the premium enterprise AI platform for law firms and the broadest workflow engine. CoCounsel (Thomson Reuters/Casetext) emphasizes legal research and is tightly integrated with Thomson Reuters's legal content. LexisNexis AI is built on LexisNexis's own research corpus. Firms often use Harvey for general workflow automation and CoCounsel or Lexis for primary legal research. The three are complementary as much as competitive.
📋 Good to know
Contact Harvey AI sales for a demo and pilot. Enterprise deployments include integration and training.
Enterprise security posture with BAAs or DPAs as appropriate. SOC 2 / HIPAA / GDPR coverage depending on product.
Am Law and magic-circle firms, Big Four professional services, and large corporate legal departments.
Enterprise-grade training and onboarding typically included in contracts.