Two months ago, during a media briefing at its New York City offices, Thomson Reuters offered a glimpse of what it called the “next generation” of its CoCounsel artificial intelligence platform, a shift, the company said, from AI tools that simply respond to prompts to intelligent agentic systems capable of planning, reasoning, and executing complex, multi step workflows in professional settings.
That vision became reality on August 5, 2025 with the official launch of CoCounsel Legal, a platform that blends agentic workflows with advanced research capabilities, all powered by Westlaw’s vast legal content. Thomson Reuters is positioning it as the most comprehensive AI solution yet for legal professionals.
First unveiled to the media during a July 24 press briefing, the new platform introduces two major innovations: guided workflows that can manage sophisticated legal tasks from start to finish, and Deep Research, an AI-powered research engine that leverages Westlaw’s proprietary tools to deliver thorough, authoritative results. In an August 5 posting in LawSites Weekly Bob Ambrogi writes… “Unlike traditional AI-assisted research that summarizes search results, Deep Research creates research plans, executes them iteratively, and delivers comprehensive reports with transparent reasoning”