Harvey AI vs CoCounsel by Thomson Reuters Pricing 2026
Complete pricing comparison between Harvey AI and CoCounsel by Thomson Reuters. Find out which ai legal tools tool is right for you.
Harvey AI pricing ranges from $100–$500/user/month, while CoCounsel by Thomson Reuters ranges from $50–$500/user/month. CoCounsel by Thomson Reuters is typically 25% more affordable, though your actual cost depends on tier and team size.
The right choice between Harvey AI and CoCounsel by Thomson Reuters depends on your specific requirements: team size, feature needs, and integration requirements all affect which option delivers better value.
See the tier-by-tier breakdown below to compare specific plans, or use our calculators to estimate costs: Harvey AI calculator | CoCounsel by Thomson Reuters calculator
Harvey AI and CoCounsel represent two fundamentally different approaches to legal AI: Harvey is the enterprise-only platform built for large law firms with custom AI models trained on proprietary documents ($100-$500/user/month with 25-50+ seat minimums, translating to $30,000-$300,000+ annual contracts), while CoCounsel by Thomson Reuters is the accessible alternative designed for firms of all sizes with no seat minimums and transparent per-user pricing starting at $220/month. This comparison matters because the right choice depends entirely on firm size, budget, and whether you need deep customization or immediate out-of-the-box legal AI functionality integrated with Westlaw.
Pricing Tier Comparison
| Tier | Harvey AI | CoCounsel by Thomson Reuters |
|---|---|---|
| Enterprise | Custom | $75 /per task |
| Basic Research | — | $220 /user/month |
| CoCounsel Core | — | $225 /user/month |
| All Access | — | $500 /user/month |
| Westlaw Precision with CoCounsel | — | $428 /user/month |
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Our Verdict
Choose Harvey AI if you are a large law firm (50+ lawyers) with the budget for enterprise-grade AI and the need for custom models trained on your firm's proprietary documents, precedents, and drafting styles. Harvey's multi-jurisdictional capabilities, dedicated account teams, and deep integration with firm systems justify the premium for organizations handling complex cross-border transactions, high-stakes litigation, or due diligence at scale -- but only if you can commit to 25-50+ seat minimums and $30,000-$300,000+ annual contracts.
Choose CoCounsel if you are a solo practitioner, small firm, or mid-size practice that needs immediate access to legal AI without enterprise commitments. CoCounsel Core at $225/month provides comprehensive AI document work, contract analysis, and research with no seat minimums and no implementation fees. Firms already using Westlaw should strongly consider the Westlaw Precision bundle ($428/month) for seamless integration of AI capabilities with their existing research workflow.
Frequently Asked Questions
01 Can a solo practitioner use Harvey AI instead of CoCounsel?
No. Harvey AI requires enterprise contracts with 25-50+ seat minimums, making it inaccessible to solo practitioners and small firms. A solo practitioner would need to commit to $30,000+ annually at minimum. CoCounsel has no seat minimums -- solo practitioners can subscribe to CoCounsel Core at $225/month ($2,700/year) or Westlaw Precision with CoCounsel at $428/month ($5,136/year). CoCounsel is the only viable legal AI option for individual lawyers.
02 Does Harvey AI offer better legal research than CoCounsel?
It depends on the use case. Harvey AI excels at research involving proprietary firm documents, custom-trained AI models, and complex multi-jurisdictional analysis. CoCounsel excels at research integrated with Thomson Reuters' Westlaw database, offering access to federal and state case law, KeyCite, and reference attorney support. For standard legal research with primary law databases, CoCounsel with Westlaw is likely superior. For research requiring custom AI trained on a firm's own work product, Harvey is the better choice.
03 What is the total annual cost difference between Harvey AI and CoCounsel for a 25-lawyer firm?
Harvey AI would cost $30,000-$150,000/year for 25 lawyers (at $100-$500/user/month), plus $10,000-$50,000 for implementation and $10,000-$15,000/year for LexisNexis integration -- totaling $50,000-$215,000 in the first year. CoCounsel Core at $225/user/month would cost $67,500/year (25 x $225 x 12) with no implementation fees. The Westlaw Precision bundle would cost $128,400/year (25 x $428 x 12). CoCounsel saves $0-$87,000+ annually depending on Harvey's negotiated rate and chosen CoCounsel plan.