Thomson Reuters launches CoCounsel Legal in the UK, expanding Deep Research to unify legal research, workflow automation, intelligent document search, and AI-powered assistance across Westlaw and Practical Law.

Deep Research pulls relevant guidance and templates from Westlaw Advantage and Practical Law, delivering evidenced conclusions with research steps and structured reports.

The solution integrates with Microsoft 365 and most document management systems, designed to fit within existing law-firm technology stacks.

Industry endorsements from senior professionals underscore the value of integration and potential for reducing external counsel spend.

An interview with Thomson Reuters’ product leadership is planned to discuss functionality, agentic capabilities, and deployment lessons.

Drafting and assistant capabilities are available now, with more advanced review tools on the roadmap to broaden platform functionality.

A staged rollout begins in the US this February, followed by global expansion to gradually extend access.

The piece notes ongoing vendor innovation in legal tech and the challenge for buyers to keep up, with potential time spent on rework as AI adoption grows.

Thomson Reuters is reportedly earmarking about $10 billion for AI acquisitions through 2027 to expand AI capabilities across its legal content and tools.

The rollout signals a strategic shift to bring more work inside Thomson Reuters’ ecosystem, positioning CoCounsel as a serious competitor to stand-alone tools.

Product leaders emphasize that CoCounsel aims to empower lawyers to reason through complex problems, integrate with workflows, and scale beyond mere efficiency.

Industry executives stress enterprise-grade, scalable AI that reasons through complex problems while maintaining authoritative content foundations.