A research-and-drafting layer built on Westlaw
CoCounsel is Thomson Reuters's "Fiduciary-Grade AI," built on what the company describes as 174 years of Thomson Reuters content and more than 1,000 AI and data-science staff, integrated with Westlaw, Practical Law, Checkpoint, Microsoft 365 and the major document management systems. Thomson Reuters says it is "already trusted by 1M users," and its August 2026 next-generation release pushes toward fully agentic execution: reasoning, planning and producing work product rather than just answering questions.
That's a genuinely strong position for the audience it's built for: firms and in-house teams already paying for Westlaw or Practical Law who want an AI layer wired directly into content they already trust, running inside the Word, Teams and DMS tools they already use every day, without adding a second content subscription to reconcile against the one they're already paying for.
- “already trusted by 1M users” , checked 2026-09-03



