Casetext

Casetext is an AI-powered legal research and drafting platform that was acquired by Thomson Reuters for $650 million in 2023. The company's flagship product, CoCounsel, was one of the first AI legal assistants powered by GPT-4, capable of conducting legal research, reviewing documents, preparing deposition questions, and drafting correspondence.

CoCounsel represented a breakthrough in AI-assisted legal work, enabling attorneys to complete research and document review tasks in minutes that traditionally took hours or days. The platform was trained to understand legal reasoning, cite relevant case law accurately, and produce work product that meets professional legal standards.

The acquisition by Thomson Reuters, parent of Westlaw, brought Casetext's AI technology into the world's largest legal information company. The combination of Thomson Reuters' comprehensive legal databases with Casetext's AI capabilities has created one of the most powerful legal AI platforms available, now integrated across Thomson Reuters' product suite.