CoCounsel vs Lexis+ with Protégé (2026)
Side-by-side comparison of CoCounsel vs Lexis+ with Protégé — pricing, capabilities, integrations, deployment complexity, and ratings. Last updated May 2026.
Data sourced from The AI Agent Index · Updated daily
CoCounsel
by Thomson Reuters
CoCounsel from Thomson Reuters combines agentic legal workflows with Westlaw-grounded research. Used by 20,000+ firms including the majority of Am Law 100. Subscription pricing varies.
Lexis+ with Protégé
by LexisNexis
LexisNexis Lexis+ with Protégé (formerly Lexis+ AI) combines agentic AI workflows with authoritative legal content. Drafts, researches, and analyses cases. Custom pricing.
Capabilities
CoCounsel
Lexis+ with Protégé
Pros & Limitations
Editorial assessmentCoCounsel
Pros
- ✓Grounded in Westlaw -- research outputs cite authoritative primary sources rather than open-web content
- ✓Deep Research agentic capability handles multi-step research workflows that previously required hours of attorney time
- ✓20,000+ active customers and Am Law 100 majority adoption signals enterprise-grade reliability
Limitations
- ⚠Pricing visibility limited unless you're already a Westlaw customer or willing to engage sales
- ⚠Bundling with Westlaw means some buyers pay for legal research infrastructure they may not need
- ⚠Workflow library is pre-built; custom workflows are still rolling out incrementally
Lexis+ with Protégé
Pros
- ✓Outputs grounded in LexisNexis content + Shepard's Citations means verifiable legal citations rather than potential AI hallucinations
- ✓300+ pre-built workflows + Custom Workflow Builder reduces setup time vs starting from scratch
- ✓Microsoft 365 + DMS integrations (iManage, SharePoint, OpenText, Google Drive) means AI works inside existing legal workflows
Limitations
- ⚠Custom pricing without published reference rates makes budgeting harder than tools with public pricing
- ⚠Most useful when bundled with existing LexisNexis subscriptions -- standalone value depends on content licenses
- ⚠Newer Custom Workflow Builder is still maturing -- out-of-the-box workflows are stronger than custom-built ones today
Frequently asked questions
What is the difference between CoCounsel vs Lexis+ with Protégé?
See the full comparison above.
Which is best for my team — CoCounsel vs Lexis+ with Protégé?
How does pricing compare between CoCounsel vs Lexis+ with Protégé?
CoCounsel uses a subscription model, starting at $428 per month. Lexis+ with Protégé uses a custom model.
View full CoCounsel profile
Pricing, reviews, integrations →
View full Lexis+ with Protégé profile
Pricing, reviews, integrations →
Stay ahead of the curve
The AI Agent Index Weekly — agents gaining community trust, builder wins, and what's shipping. One email a week.
No spam. Unsubscribe anytime.