Casetext CoCounsel vs Harvey AI
A detailed comparison to help you choose between Casetext CoCounsel and Harvey AI.
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Verdict: Harvey AI wins
Harvey AI scores 4.2/5, edging out Casetext CoCounsel at 3.1/5. Large law firms and in-house legal departments where diligence, contract review and legal research volume justify a six-figure annual AI platform commitment.
Casetext CoCounsel AI legal research and drafting | Harvey AI AI for elite law firms | |
|---|---|---|
| Rating | 3.1 (1 review) | 4.2 (1 review) |
| Pricing Model | paid | paid |
| Starting Price | From $225/mo | From $500/mo |
| Best For | US law firms of five or more attorneys already invested in Westlaw or Practical Law that want AI research and drafting inside that ecosystem. | Large law firms and in-house legal departments where diligence, contract review and legal research volume justify a six-figure annual AI platform commitment. |
| Free Tier | ||
| API Access | ||
| Team Features | ||
| Open Source | ||
| Tags | team features | ssoteam features |
| Visit Casetext CoCounsel → | Visit Harvey AI → |
Casetext CoCounsel
Pros
- + Citations in my checks resolved to real documents in the account library, with KeyCite treatment signals attached
- + Task-shaped outputs (research memos, obligation logs, timelines) rather than raw chat
- + Word drafting anchored to Practical Law precedent cut my NDA first-draft time to about 15 minutes
- + Document review reliably handles first-pass summarisation and clause extraction
- + Bundled Westlaw and Practical Law access removes the tab-switching that slows legal research
Cons
- - Standalone Casetext was retired on 2025-04-01; you cannot buy the old product at any price
- - No self-serve trial or published list price — everything routes through a configurator or sales call
- - Estimated $293/seat/month floor for the entry tier (Spellbook's configurator read, June 2026), roughly 30% above the old $225 standalone price
- - US law is the centre of gravity; most of the value evaporates for non-US practice
- - Missed a cross-reference in a lease amendment during my document review test — human review still required
Harvey AI
Pros
- + Vault review workflow extracted clause data across a SaaS agreement set with page-level citations and caught a buried liability carve-out I nearly missed
- + Assistant handles ambiguous legal questions with jurisdictional clarification and explicit hedging instead of fluent overconfidence
- + Enterprise posture is serious: document-management integrations, audit trails, SSO and zero-retention options that pass firm security review
- + Proven at scale — used by more than half the Am Law 100 per Harvey's blog, with HEUKING expanding firm-wide after a two-year pilot
- + Workflow Agents compress first-pass multi-document review from hours to minutes while keeping an inspectable run history
Cons
- - No public pricing, no trial; third-party reports point to roughly $1,200/seat/month with 20-25 seat minimums — a six-figure annual floor
- - Not a citator; case-law validity checking still needs traditional research tools
- - Extraction output needed human correction on some cells in my test — supervision is mandatory, not optional
- - Multi-jurisdiction depth is uneven outside the US and UK and must be piloted, not assumed
- - Renewal risk at a vendor that raised $550M at a $15.5B valuation with growth expectations — negotiate price caps up front
Frequently Asked Questions
Which is better, Casetext CoCounsel or Harvey AI?▼
Harvey AI scores higher at 4.2/5 vs 3.1/5 for Casetext CoCounsel, making it the better-rated option in our comparison.
What is the difference between Casetext CoCounsel and Harvey AI?▼
Casetext CoCounsel: CoCounsel Legal is Thomson Reuters' AI assistant for lawyers, used for legal research, reviewing and summarising documents, and drafting. Formerly Casetext; sold per user. Harvey AI: Harvey is an AI platform for law firms and professional services, used for legal research, drafting and reviewing documents at firm scale.
Is Casetext CoCounsel or Harvey AI more affordable?▼
Casetext CoCounsel starts at €225/mo, Harvey AI starts at €500/mo. Check the comparison table above for current pricing.
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