Thomson Reuters today (26 January) announced the UK launch of CoCounsel Legal, an agentic AI solution that brings together legal research, workflow automation and legal assistance.
This follows CoCounsel Legal’s rollout last year in the US, however the UK release includes deep research on Practical Law and Westlaw – the US release will follow in February and globally thereafter.
Deep research in CoCounsel is built to reason, plan and deliver legal research grounded in Westlaw and Practical Law content. It enables legal professionals to hand off full research questions to AI, which explains its process, sources its answers, and builds the argument foundations, with human oversight. Additionally, it generates multistep research plans, traces its logic with transparent reasoning and delivers Westlaw and Practical Law citation-backed reports.

We will shortly bring you an interview with Emily Colbert, SVP of product management at Thomson Reuters, discussing the functionality of CoCounsel Legal in depth – including a deep dive on its agentic capability – as well as some of the lessons learned to date.
CoCounsel Legal has been in beta with UK customers, one of which is Womble Bond Dickinson.

“We knew we needed to bring in a GenAI legal assistant to help us deliver the best possible service we can for clients,” said Sam Dixon, chief innovation officer of Womble Bond Dickinson (pictured above). “For us, the fact that CoCounsel had the ability to lean on the Westlaw content and the Practical Law content was really beneficial. And it already integrates with a lot of the rest of our legal tech stack, such as HighQ.”
CoCounsel also integrates with Microsoft 365 and most document management systems.
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