Grounded responses
Uses authoritative content and expert-validated sources to ground responses, which is intended to reduce the risk of unsupported output in professional work.
CoCounsel is Thomson Reuters’ AI for legal, tax, audit, and accounting professionals, grounded in authoritative content and built for existing workflows.
CoCounsel is Thomson Reuters’ AI product for professionals who need answers they can examine, explain, and defend. The homepage positions it as fiduciary-grade AI for high-stakes work, with a focus on legal, tax, audit, accounting, compliance, and drafting tasks.
The product is framed around authoritative content, subject-matter expertise, and workflow integration. Thomson Reuters says CoCounsel is grounded in expert-validated sources, connects to tools such as Westlaw, Practical Law, Checkpoint, Microsoft 365, and document management system partners, and includes privacy and security safeguards designed for sensitive professional use.
Uses authoritative content and expert-validated sources to ground responses, which is intended to reduce the risk of unsupported output in professional work.
Connects with tools already used in practice, including Westlaw, Practical Law, Checkpoint, Microsoft 365, and document management system partners.
Designed for legal, tax, audit, accounting, compliance, and drafting tasks, with the homepage calling out high-stakes professional work.
Surfaces sources and reasoning so users can inspect how an answer was produced and determine whether it can be defended.
Built with privacy and security safeguards, including TLS 1.2 in transit, AES-256 at rest, and zero-retention API calls to supported LLM providers.
Draft and review work that needs to be explained and defended, especially where the user wants sourced outputs instead of general-purpose AI responses.
Accelerate research and analysis for matters that rely on authoritative references and expert-validated source material.
Support tax, audit, and accounting workflows where precision, transparency, and reviewability matter.
Work inside existing firm or enterprise systems by connecting AI assistance to products such as Microsoft 365 and document management systems.
CoCounsel is designed to support legal, tax, audit, and accounting work by helping professionals accelerate research, drafting, and analysis. The homepage presents it as AI for high-stakes professional work, with examples centered on legal professionals and other regulated fields.
The source describes CoCounsel as connected to tools such as Westlaw, Practical Law, Checkpoint, Microsoft 365, and document management system partners. It is positioned as working within existing professional workflows rather than as a standalone chat experience.
The homepage says CoCounsel surfaces sources and reasoning so users can verify and defend outputs. It emphasizes authoritative content, expert-validated sources, and transparent outputs rather than opaque generation.
Thomson Reuters states that user content and prompts are not used to train CoCounsel or associated models. The FAQ also says data retention is customized at the organization level and managed with a Thomson Reuters client manager.
The pricing page indicates that Casetext is no longer available and directs visitors to Westlaw for legal research and CoCounsel for legal AI. The source does not provide current pricing details for CoCounsel on the captured pages.