CoCounsel
Best for legal research with Thomson Reuters backingCoCounsel is a Thomson Reuters product combining GPT-4 with Thomson Reuters' vast legal content including Westlaw, providing access to comprehensive case law, statutes, regulations, and secondary sources. Legal research capabilities include finding relevant cases, analyzing precedent strength, identifying distinguishing factors, and synthesizing holdings across multiple jurisdictions to support legal arguments. Document review features analyze thousands of documents in litigation or due diligence contexts, identifying key documents, extracting relevant facts, and organizing information by issue or timeline. Deposition preparation functionality reviews case documents and suggests questions based on facts, inconsistencies, and legal theories, helping attorneys prepare more effective examinations. Contract analysis reviews agreements to identify key terms, risks, obligations, and non-standard provisions, creating summaries that highlight important business and legal terms. Timeline creation automatically generates chronologies from case documents by extracting dates, events, and parties, organizing complex fact patterns into understandable sequences. Case law summarization provides concise summaries of judicial opinions, extracting holdings, reasoning, and procedural history without requiring attorneys to read full opinions for initial assessment.
AI Models
Key Features
- GPT-4 powered with Thomson Reuters legal content
- Legal research across case law, statutes, regulations
- Document review analyzing thousands of documents
- Deposition preparation with suggested questions
- Contract analysis and summarization
- Timeline creation from case documents
- Case law summarization with holdings extraction
- Access to Westlaw content library
Integrations
Pricing
Legal research, document review, AI drafting
Westlaw integration, agentic AI, deep research
Pros & Cons
Pros
- Thomson Reuters backing provides content credibility
- Westlaw integration leverages existing legal research infrastructure
- Backed by Thomson Reuters' legal data
Cons
- Usage limits on lower tiers may restrict heavy users
- Less specialized for contracts than dedicated tools
Who should buy this
CoCounsel
- Law firm or in-house team already using Westlaw / Practical Law (CoCounsel is the AI layer)
- Mid-market and enterprise firm wanting Thomson Reuters' content + AI in one platform
- Litigation team needing deep legal research grounded in case law
- Solo practitioners not on Thomson Reuters platform (Spellbook is more accessible)
- Buyers needing on-prem (cloud-only)
Bundled with Westlaw subscriptions for existing TR customers. Standalone CoCounsel: typically $250-$500/seat/mo enterprise contracts.
Verified 2026-05-03
Capabilities at a glance
| Capability | CoCounsel |
|---|---|
| Legal research with Westlaw integration | |
| Contract analysis | |
| Document summarization | |
| Deposition preparation | Enterprise |
| Practical Law integration | |
| On-prem / self-hosted |
Security & compliance
| Standard / control | CoCounsel |
|---|---|
| SOC 2 | Type II |
| ISO 27001 | |
| GDPR | |
| SSO / SAML | |
| RBAC | |
| Audit logs | |
| Trains on customer data | No |