Harvey Review
The GPT-4-class assistant purpose-built for BigLaw research, drafting and due diligence.
Harvey is the tool magic-circle and AmLaw 100 firms benchmark other legal AI against. Trained and fine-tuned on legal work, with SOC 2 controls, matter-scoped workspaces and no training on client data.
Some outbound links may be affiliate links. We only recommend tools we've used or vetted with practitioners.
Best for
Large law firms and top-tier in-house teams with real matter volume.
Not for
Solo practitioners — pricing and deployment are firm-scale.
Pros
- State-of-the-art quality on legal drafting and reasoning tasks.
- Matter-scoped data isolation and enterprise controls.
- Deep design partnerships with firms like A&O and PwC Legal.
- Rapid roadmap — new practice-area workflows every quarter.
Cons
- Opaque pricing; expect a serious commitment.
- Requires a change-management programme to land at partner level.
- Not a drop-in for individual lawyers.
Use cases where Harvey earns its price
M&A due diligence
Extract obligations, change-of-control clauses and reps across data rooms.
Cross-jurisdiction research
Draft memos comparing positions across UK, US and EU law.
First-draft client memos
Structured, cite-checked drafts that partners can edit down.
Our verdict
The clear leader for large-firm legal AI. If you're a firm considering it, you're already in the buying cycle.
Harvey review: FAQ
Quick answers to what UK buyers ask about Harvey before signing up.
Is Harvey worth it in 1970?
The clear leader for large-firm legal AI. If you're a firm considering it, you're already in the buying cycle. Our current rating is 8.8/10 for UK generative ai for elite law firms teams.
How much does Harvey cost?
Harvey is Paid (firm-level licensing, contact sales). Pricing changes fast in this space — the "Request Harvey demo" button above goes straight to the vendor's live pricing page.
Who is Harvey best for?
Harvey is best for Large law firms and top-tier in-house teams with real matter volume. It's a weaker fit for Solo practitioners — pricing and deployment are firm-scale.
What are the biggest pros and cons of Harvey?
The strongest reason to buy is: State-of-the-art quality on legal drafting and reasoning tasks. The biggest trade-off to know about is: Opaque pricing; expect a serious commitment. Full pros/cons list is above.
What can I actually use Harvey for day-to-day?
The highest-leverage use case is "M&A due diligence". We list two more concrete workflows above where Harvey tends to earn its licence back inside a month.
Is Harvey safe for confidential UK data?
Harvey publishes a DPA and, on business plans, offers controls for data retention and training opt-out. Before uploading client, employee or privileged data, read the vendor's current DPA — linked from their pricing page — and confirm UK/EU data residency if that's a requirement for you.
Alternatives in the same category
Suggests clauses, spots missing provisions and redlines contracts without leaving Microsoft Word.
UK-built contract copilot that reviews, redlines and explains contracts in plain English.
Ask legal questions in plain English and get answers grounded in Lexis's UK case law database.
Instantly surfaces defined terms and cross-references so lawyers stop scrolling long contracts.
Build client intake bots, self-service tools and document automations without writing code.