Thomson Reuters Launches CoCounsel Legal Beta With Agentic AI

Thomson Reuters has launched a beta version of CoCounsel Legal Reimagined on April 20, 2026, introducing a fully agentic AI platform built on Anthropic's Claude Agent SDK for legal professionals worldwide.

This launch marks a significant shift in legal AI from task-based tools to end-to-end workflow automation, arriving at a time when AI accuracy and citation reliability have become central concerns across the legal industry.

Platform Capabilities

The new platform allows users to complete legal tasks through a single conversation. Users describe what they need in plain language, and CoCounsel Legal automatically identifies the required skills and workflows, plans the necessary steps, and executes them without manual intervention.

Thomson Reuters describes this as a move from prompt-driven AI to fully agentic infrastructure. The system plans, selects tools, retrieves authoritative content, and adapts mid-workflow.

Ragunath Ramanathan, President of Legal Professionals at Thomson Reuters, stated: "The next generation of CoCounsel Legal is a unified agentic platform that plans, selects tools, retrieves authoritative content, and adapts mid-workflow just as a senior associate would, not a first-year waiting for the next instruction."