Casetext CoCounsel

About Casetext CoCounsel

Casetext CoCounsel is an AI-powered legal assistant developed by Casetext, which was acquired by Thomson Reuters in 2023. The tool is built on large language model technology and is designed to help legal professionals handle time-intensive tasks including legal research, document review, contract analysis, and drafting. It connects to Casetext's existing database of case law, statutes, and legal materials, allowing it to surface relevant precedents and synthesize information in response to natural language queries. The primary use cases center on tasks that traditionally consume significant attorney hours. Lawyers can use CoCounsel to search case law and receive summarized, cited results rather than manually reviewing long lists of documents. The tool can review uploaded contracts or discovery materials and answer specific questions about their contents, flag relevant clauses, or identify potential issues. It also assists with drafting memos, correspondence, and other legal documents based on prompts, drawing on research it conducts in real time. Deposition preparation is another supported workflow, where the tool can generate question sets based on case documents. CoCounsel is aimed at practicing attorneys, law firms, and in-house legal teams that want to reduce research and review time without sacrificing accuracy. Its integration with Thomson Reuters resources positions it particularly well for firms already using Westlaw or other Thomson Reuters products. Because it is designed for professional legal use, it emphasizes citation accuracy and source transparency more than general-purpose AI tools. Pricing is not publicly listed in detail, but CoCounsel operates on a subscription basis, with access typically bundled or sold alongside Thomson Reuters legal research products. It is positioned as an enterprise-grade solution rather than a consumer tool, meaning pricing and packaging are generally handled through direct sales conversations rather than self-serve sign-up.

Reviews