By Adriano Marchese
Thomson Reuters has launched the next generation of its CoCounsel Legal platform, adding agentic artificial intelligence capabilities to automate complex litigation workflows.
Built on Anthropic’s Claude agent software development kit, or SDK, and integrated with Thomson Reuters’ Westlaw and Practical Law, the updated suite introduces Westlaw Brief Builder, a tool that guides litigators from initial research to first-draft briefs.
The integration comes after Thomson Reuters shares suffered a steep 16% single-day drop in February when Anthropic announced the debut of its own legal plugins for its AI platform Claude, sparking fears that standalone AI models could dislodge legacy software providers.
Since then, the company has been trying to convince the markets that its proprietary content, data and expertise are fundamental to professionals, downplaying fears that AI could supplant its offerings.
For now, the new CoCounsel Legal experience is available in the U.S., with availability in Canada, the U.K. and Australia to follow later this year, it said.
Write to Adriano Marchese at adriano.marchese@wsj.com
(END) Dow Jones Newswires
08-20-26 0952ET