Legal ResearchLegal Research AIEditor's choiceProfile pending primary-source verification
CoCounsel
Thomson Reuters' legal AI assistant with deep Westlaw integration for research, review and drafting
By the BestAIAgentsforLawyers Editorial Team · Updated · How we rate
9.3
Excellent
Explore CoCounsel →From ~$75/user/mo · Per-seat / mo
Is CoCounsel worth it?
Quick answer
CoCounsel scores 9.3/10. Firms that want legal AI grounded in Westlaw's case-law database. Pricing starts at From ~$75/user/mo (per-seat / mo). It is sold primarily through enterprise/direct sales.
Tier
Legal Research & Reasoning Agents
Category
Legal Research AI
Pricing model
Per-seat / mo
Starting price
From ~$75/user/mo
Deployment
Cloud SaaS
Self-serve signup
No (sales-led)
Target buyer
Firms of all sizes already invested in Westlaw and Thomson Reuters
CoCounsel pricing
Tiers: On Demand ~$75, Core ~$225, All Access ~$500/user/mo billed annually; Westlaw base often separate.
Key capabilities
- ◆Westlaw-grounded research
- ◆Document review and summarization
- ◆Deposition and contract analysis
- ◆Citation checking
What we like
- +Largest legal-AI user base (1M+)
- +Deep Westlaw integration
- +Mature, trusted incumbent
- +Tiered entry pricing
What to watch
- −Best value requires Westlaw subscription
- −Higher tiers get expensive
- −Enterprise sales process
Ready to try CoCounsel?
Firms that want legal AI grounded in Westlaw's case-law database.
Explore CoCounsel →