CoCounsel by Thomson Reuters

CoCounsel is an enterprise-grade generative AI platform built by Thomson Reuters to accelerate complex work across legal, tax, audit, and accounting practices. By combining advanced language models with trusted legal and tax content, the platform helps professionals complete research, drafting, document analysis, and compliance tasks in a fraction of the traditional time. The AI is grounded in authoritative sources rather than general internet data, reducing hallucinations and ensuring compliance-ready outputs. The platform offers two main solutions: CoCounsel Legal integrates case research, contract drafting, and document review into a unified workspace, while CoCounsel Tax optimizes tax planning and compliance by merging verified tax guidance, firm knowledge, and automated workflows. Both leverage agentic AI to handle multi-step processes independently, allowing professionals to focus on high-value strategy and client service rather than repetitive research and administrative tasks. CoCounsel integrates seamlessly with tools professionals already rely on, including Westlaw, Practical Law, Checkpoint, and Microsoft 365. This compatibility means minimal disruption to existing workflows while unlocking AI-powered productivity. The platform prioritizes data security by training only on licensed content and never using client data for model improvement, addressing critical privacy concerns in regulated industries.