CoCounsel
CoCounsel is Thomson Reuters’ AI assistant for legal, tax, audit and compliance work, grounded in Westlaw, Practical Law and Checkpoint content.
About this tool
CoCounsel is the professional AI assistant from Thomson Reuters, aimed at lawyers, tax advisers, auditors and compliance teams. Its legal edition reasons from Westlaw case law, Practical Law guidance and an organisation’s own documents, so a single request can cover research, analysis and drafting, working through a matter step by step.
Thomson Reuters markets it as fiduciary-grade AI, emphasising answers that can be examined and defended. CoCounsel connects with tools professionals already use, including Westlaw, Practical Law, Checkpoint for tax and accounting, Microsoft 365 and document management systems. Thomson Reuters cites a commissioned study reporting time savings on document review, research and drafting.
What you can do
Grounded legal research
Answers draw on Westlaw and Practical Law content rather than general web text.
Drafting and analysis
One request can move from research to analysis to a draft document for review.
Tax and audit support
Checkpoint integration extends CoCounsel to tax, accounting and audit work.
Workflow integrations
Works with Microsoft 365 and document management systems used in firms and legal departments.
Who is it for?
- A litigation associate researches precedent and drafts a memo for partner review.
- An in-house counsel checks a contract position against Practical Law guidance.
- A tax adviser researches a technical question using Checkpoint content.
Before you choose
Outputs must still be verified by qualified professionals before being relied on or filed.
Full value depends on access to Thomson Reuters content subscriptions, which affects total cost.
Frequently asked questions
Who makes CoCounsel?
CoCounsel is developed by Thomson Reuters, the company behind Westlaw, Practical Law and Checkpoint.
What sources does CoCounsel use?
CoCounsel Legal reasons from Westlaw, Practical Law guidance and your organisation’s own knowledge, rather than open web content.
Is CoCounsel only for lawyers?
No. Thomson Reuters positions it for legal, tax, audit, compliance and drafting work across professional services.
Check the official website for current features, pricing, and terms.
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