Casetext (CoCounsel) vs Harvey AI (2026)

Casetext (CoCounsel) or Harvey AI — which one wins? We break down features, pricing, and user ratings so you can decide in minutes.

Casetext (CoCounsel)No reviews

Harvey AINo reviews

Quick Verdict

Both tools are similarly rated.

Harvey AI is free to use.

Casetext (CoCounsel)

Harvey AI

Rating

—No reviews

Pricing

enterprise

enterpriseFreeCheaper

Best For

Integration with Westlaw, Practical Law, and Microsoft 365Agentic AI workflows for legal, tax, and audit tasksZero-retention API calls for secure data processing

Automated due diligence and document reviewContract analysis and risk mitigationLegal research and case law synthesis

Key Features

Integration with Westlaw, Practical Law, and Microsoft 365
Agentic AI workflows for legal, tax, and audit tasks
Zero-retention API calls for secure data processing
Prompt guardrails restricted to verified content databases
Customizable organizational data retention policies
AES-256 encryption for data at rest

Automated due diligence and document review
Contract analysis and risk mitigation
Legal research and case law synthesis
Multi-jurisdictional legal document drafting
Enterprise-grade security controls (SAML SSO, audit logs, IP allow-listing)
Workflow agent orchestration for complex legal processes

Pros

+ User content and prompts are strictly prohibited from training AI models
+ Integration with proprietary Thomson Reuters databases like Westlaw
+ Strict guardrails prevent responses from being broadly sourced from the internet

+ Specifically architected for large law firms and in-house legal departments
+ Maintains enterprise-grade compliance including SOC2, ISO 27001, and GDPR
+ Supports sophisticated, high-stakes legal workflows like fund formation and deal management
+ Proven track record with over 60 AmLaw 100 firms

Cons

No public pricing available as it is an enterprise-only solution
Restricted to professional use cases within legal, tax, and audit domains
High reliance on the Thomson Reuters ecosystem for full functionality

Requires high-touch enterprise sales engagement with no public pricing
Not accessible for solo practitioners or small legal offices
Integration-heavy deployment model necessitates organizational technical readiness

Casetext (CoCounsel)

AI legal research assistant powered by GPT-4 for attorneys

Get started with Casetext (CoCounsel) Full Review

Harvey AI

AI-powered legal assistant built for law firms and legal teams

Get started with Harvey AI Full Review

Casetext (CoCounsel) vs Harvey AI — Which Should You Choose?

Choose Casetext (CoCounsel) if you value user content and prompts are strictly prohibited from training ai models. Rated 0/5 by 0 users.

Choose Harvey AI if you value specifically architected for large law firms and in-house legal departments. and want a free option Rated 0/5 by 0 users.

Both tools are popular in the legal space. The best choice depends on your workflow and budget.

Frequently Asked Questions

Is Casetext (CoCounsel) or Harvey AI better?+

Both Casetext (CoCounsel) and Harvey AI are similarly rated. The best choice depends on your specific needs, budget, and workflow preferences.

Is Casetext (CoCounsel) or Harvey AI cheaper?+

Casetext (CoCounsel) and Harvey AI have similar pricing. Both start around $0/mo.

Can I switch from Casetext (CoCounsel) to Harvey AI?+

Yes, switching from Casetext (CoCounsel) to Harvey AI is possible. Both are legal tools with similar capabilities. Review the feature comparison above to understand what you'll gain and lose.