CoCounsel
Professional-grade legal AI
Trained by industry experts, backed by authoritative content, and subject to best-in-class security, CoCounsel empowers you to focus on more human aspects of legal work
Accomplish remarkably thorough, accurate and efficient work in seconds
Review
Ask a question about your documents — from testimony to transcripts — and quickly get answers with source citations.
Compare
Automatically identify similarities, differences, and favorability across documents for timely and nuanced insights.
Summarise
Interpret and condense information in documents — agreements, contracts, and opinions — faster and without missing details.
Grounded in reliable data sources
CoCounsel output is drawn only from reliable, verifiable sources and provides citations. It harnesses large-language models but limits knowledge sources to your or your clients’ databases, plus our trusted Practical Law content, powered by over 650 lawyer editors.
Tested and authenticated
Our Trust Team — comprised of experienced AI engineers and professional lawyers — filter, rank, and score output of thousands of sophisticated questions to ensure consistency and accuracy. This team makes CoCounsel one of the best AI tools for lawyers.
Private and secure
CoCounsel accesses GPT-4 through dedicated, private servers, and an “eyes off” API. No OpenAI employees can see customer queries or documents — information is encrypted in transit and at rest, and subject to Thomson Reuters rigorous security policies and practices.
Leading legal AI assistant
For 150 years, our proprietary content and resources for professionals have been unmatched. Thomson Reuters provides not only the expert-produced content itself but also the know-how and advice on how best to apply it to your professional work.
Trained for the law
Our attorneys and AI specialists spent months developing and repeatedly testing an OpenAI-powered solution specifically tailored to meet lawyers’ needs. These experts’ rigorous work ensures it is reliable and secure enough to meet even the highest bar.
For professionals, by professionals
Now professionals can delegate substantive work to legal AI assistants and trust the results. This premier solution has been developed and is backed by the legal industry’s pioneers in applying this technology for professional use.
See CoCounsel in action
CoCounsel is AI lawyers swear by
“We view generative AI as a key opportunity. We evaluated several technologies and found that Thomson Reuters CoCounsel offered us by far the most comprehensive solution for our needs. It was streets ahead of the competition.”
Adam Kerr,
Managing Partner, Primas Law
See CoCounsel in action
Book a complimentary demonstration
Your Thomson Reuters consultant will recommend how CoCounsel can best work with you.