As the professional-grade GenAI legal assistant from Thomson Reuters, CoCounsel makes legal professionals’ work less complex so they can accomplish more. Users can delegate substantive, sophisticated, multi-step assignments to CoCounsel as they would to a colleague, and the assistant leads the way through tasks and across products, completing in minutes work that would otherwise take hours or even days. 

Only Thomson Reuters is bringing together generative AI, trusted content, and expert insights for a new era of work. 
With products like Westlaw Precision, Practical Law, CoCounsel Core, and CoCounsel Drafting, you can reduce inefficiencies, add greater value, and better anticipate the future. 

CoCounsel’s products and capabilities include: 

Westlaw Precision with CoCounsel: Discover a more efficient way to conduct research with tools that deliver generative AI, more precise researching, expanded KeyCite functionality, and optimized workflow capabilities.

Practical Law Dynamic Tool Set: The only online legal know-how solution that helps you navigate the unexpected with easy-to-read resources, written and maintained by full-time dedicated experts, to provide the insights you need. Practical Law Dynamic Tool Set gives you access to state-of-the-art tools including Ask Practical Law AI. 

CoCounsel Core: The robust package of AI-powered skills that automates essential legal work with groundbreaking thoroughness and speed. It analyzes lawyers' own documents to help them pinpoint key knowledge, communicate complex ideas, and accelerate critical everyday tasks. That way, they can more quickly, confidently, and strategically craft an approach and move forward with their work. 

CoCounsel Drafting: CoCounsel Revolutionize the drafting process with a comprehensive end-to-end solution. Easily find the best starting point, confidently use generative AI within your drafting workflow, quickly detect document changes, and format and finalize documents with ease.

In October 2024, Thomson Reuters announced the following additions to CoCounsel:

Mischaracterization Identification 
Mischaracterization Identification is a new generative AI capability to help detect mischaracterizations and omissions in legal briefs. Customers can upload a brief to Westlaw Precision with CoCounsel and see where opposing counsel has mischaracterized the law, and judges using this feature will be able to see where all litigants may have mischaracterized the law in their filings.

AI Jurisdictional Surveys
AI Jurisdictional Surveys on Westlaw Precision with CoCounsel is a generative AI skill that enables customers to do 50-state-survey research much faster than with traditional methods, saving hours of time. It provides relevant statute language for legal questions for each jurisdiction selected for federal and state jurisdictions and U.S. territories.  

CoCounsel was originally developed by Casetext. That company was founded in 2013 and acquired by Thomson Reuters in August 2023. 

About Thomson Reuters

Thomson Reuters is a global information services company with operations in over 200 countries and territories, founded in Toronto in 2008 as a result of the merger of Thomson Corporation (founded in 1934) and Reuters Group PLC. (founded in 1851).  Thomson previously acquired West Publishing (founded in 1872) in 1996.