CoCounsel (Thomson Reuters)

About CoCounsel (Thomson Reuters)

CoCounsel is Thomson Reuters's AI legal assistant built on GPT-4 technology and trained on the Westlaw content library, designed to perform substantive legal tasks including legal research, contract and document review, deposition preparation, and regulatory compliance analysis with attorney-grade accuracy. Acquired from Casetext in 2023, CoCounsel is integrated into the Westlaw research platform, giving it direct access to the most comprehensive U.S. legal database for research verification. CoCounsel has passed the bar exam and is used by AmLaw 100 firms to handle tasks that previously required hours of associate time.