Global content and technology company Thomson Reuters (Toronto Stock Exchange/Nasdaq: TRI) recently announced an expanded partnership with Anthropic, integrating Claude directly into CoCounsel Legal via the Model Context Protocol (MCP). This integration allows legal professionals to move seamlessly between Claude and CoCounsel Legal’s trusted workflows, signaling a deep synergy between general-purpose AI and specialized legal AI. Thomson Reuters Chief Product Officer David Wong said the company is building CoCounsel Legal as the trusted core system for legal work, connecting the tools lawyers use daily while meeting the precision standards their work demands.
The new-generation CoCounsel Legal, rebuilt on Anthropic’s Claude Agent SDK, can autonomously plan tasks, select tools, retrieve authoritative content from Westlaw and Practical Law, and generate traceable work product with citations. Thomson Reuters’ AI technology now serves 1 million professionals across 107 countries, backed by a vast knowledge base of 1.9 billion Westlaw and Practical Law documents and 1.4 billion KeyCite validity signals. More than 2,600 Thomson Reuters legal experts continuously support the AI, ensuring accuracy and accountability in its output.
