CoCounsel Legal
#5 in AI for Legal & ComplianceThomson Reuters · since 5. August 2025 (Erstlaunch CoCounsel Legal); 20. August 2026 (nächste Generation, general availability) · 2× · last seen Aug 25, 2026
CoCounsel Legal is Thomson Reuters' professional generative AI assistant for lawyers and legal departments. The solution combines legal research, document analysis, and document generation in an agentic AI system based on Westlaw and Practical Law content, delivering results with traceable citations. Originally stemming from Casetext technology acquired by Thomson Reuters in 2023, CoCounsel Legal launched in August 2025 as a standalone product with "Deep Research" and was relaunched in August 2026 in an agentic generation based on Anthropic's Claude Agent SDK. The product targets law firms, in-house counsel, and government agencies and is provided via proprietary web application as well as integrations with Microsoft 365.
Features
| Compliance/Certification | SOC 2 Type II, ISO 27001, ISO/IEC 42001:2023; FedRAMP In Process for government |
| Deployment Model | Cloud SaaS, private/eyes-off infrastructure, customer data not used for model training |
| Use Case Scope | Legal research, document analysis, contract/brief drafting, litigation preparation for law firms, corporate legal departments and government |
| Integrations | Westlaw, Practical Law, Microsoft 365, iManage, NetDocuments, SharePoint, HighQ, Reveal (from October 2026) |
| License | Commercial SaaS subscription (proprietary), 1-, 2-, or 3-year contracts |
| Platform | Web application, plus Microsoft 365 (Word, Outlook, Teams) |
| Price | From approx. $75–$500/user/month depending on tier; pricing on request, 1/2/3-year plans available |
| Release Date | August 5, 2025 (launch); August 20, 2026 (next generation, GA) |