Harvey
AI legal assistant for law firms — trained on legal data, used by the world's largest law firms.
Overview
Harvey is an enterprise AI platform purpose-built for the legal industry. Backed by OpenAI and used by elite law firms including Allen and Overy, PwC Legal, and Ashurst, Harvey applies large language models fine-tuned on legal data to tasks including document drafting, due diligence, contract review, and legal research. The company raised $100 million in 2023 and $300 million in 2024.
Legal professionals use Harvey for tasks that previously required hours of billable time: reviewing contracts to identify missing clauses and non-standard terms, summarising case law, drafting first-pass briefs and memos, and extracting specific data points from stacks of documents during due diligence. Harvey is trained specifically on legal documents, regulation, and case law — making its outputs substantially more accurate than general-purpose LLMs for legal tasks.
The platform integrates with existing legal workflows and document management systems. Harvey maintains strict data segregation: each law firm's data is kept isolated. The company has expanded from US and UK law into multiple other jurisdictions and is the leading AI tool in Big Law practices globally.
Pricing
Pricing shown for reference only. These figures reflect RECATOOLS research as of 8 May 2026 and may be out of date or incomplete. This is not financial or purchasing advice — always confirm the current price on the provider’s official website before making any decision.
Use cases
ASEAN Perspective
Harvey in Southeast Asia
ASEAN-region availability and pricing notes coming soon. Drop the editorial team a note via /contact/ if you can supply local context (Singapore/Malaysia/Indonesia/Thailand/Vietnam).
Harvey is a leading enterprise legal AI, purpose-built for law firms and in-house counsel to handle contract drafting, due diligence, research, and document review with domain-tuned workflows and strong security posture. It is backed by major firms and OpenAI, and its capability on legal-specific tasks meaningfully exceeds general assistants. It suits large firms and corporate legal departments with the budget for a managed, vetted tool.
Caveats: it is enterprise-only with custom, high pricing and a sales-led onboarding, so it is out of reach for solo practitioners and small firms. Output still requires lawyer review, and jurisdictional coverage is strongest in US/UK common-law contexts. ASEAN readiness is moderate: usable by regional firms but without deep local-jurisdiction tuning. No open public API.
Notable facts
- Harvey is backed by OpenAI's fund, making it one of the few AI companies to receive direct investment from the creator of the underlying model it uses.
- Allen and Overy gave all of its 3,500 lawyers access to Harvey in 2023 — the largest deployment of AI to lawyers in a single firm at the time.
- Harvey was originally built by a lawyer (Winston Weinberg) and a machine learning researcher (Gabriel Pereyra) who met at Google and shared frustration at how little AI had improved legal practice.
Frequently asked questions
About this listing
This entry was compiled from publicly available data including Harvey's official website, press releases, documentation, and reputable third-party publications. RECATOOLS is not affiliated with Harvey unless explicitly stated.
Third-party AI tools update their pricing, features, availability, and policies frequently. Information here may be outdated by the time you read this — we make reasonable efforts to keep listings current, but cannot guarantee absolute accuracy.
For the latest details, please refer to Harvey directly →
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