What is CoCounsel?
CoCounsel is a generative AI assistant built by Thomson Reuters for professionals who work with regulated, high-stakes content. Its main product line, CoCounsel Legal, combines legal research, document analysis and drafting in a single workspace, drawing on Westlaw and Practical Law material written and edited by attorneys. Separate CoCounsel offerings cover tax, audit and accounting work, using the same approach of AI tied to authoritative sources and firm data.
In practice, a user can run research questions, analyze documents, and draft work product while getting answers backed by citations. The page emphasizes verifiable, citation-backed output and security, so the results can be checked against the underlying sources rather than taken on trust. Typical uses include legal research and memo drafting, tax research and client deliverables, and standardized audit workflows.
Key features
- Legal research grounded in Westlaw content
- Document analysis in a single workspace
- Drafting with guides and templates from Practical Law
- Citation-backed answers for verification
- Tax research and client deliverables
- Audit workflow automation with AI
Who is it for
- Lawyers and law firms
- Tax and accounting firms
- Audit professionals
- Corporate legal and risk teams
Pros and cons
- Answers are backed by authoritative, attorney-edited content
- Citation-backed output that can be verified
- Covers legal, tax and audit workflows in one vendor ecosystem
- Pricing is not shown on the homepage text; quotes appear to be sales-led
- Aimed at professional and enterprise users rather than individuals
CoCounsel pricing
The vendor does not publish prices in a readable form (often pricing is shown only after signing in).
Is CoCounsel free?
The vendor does not state this clearly on the homepage or pricing page.
Featured in
CoCounsel alternatives
| Tool | Price from | Free plan | Category |
|---|---|---|---|
 Harvey | not listed | ? | Legal |
 Legora | not listed | ? | Legal |
 Lexis+ with Protégé | not listed | trial | Legal |
 fynk | not listed | trial | Legal |
 Spellbook | not listed | trial | Legal |
 Perplexity | not listed | yes | AI search engines |
All alternatives to CoCounsel →
Comparisons
FAQ
What is CoCounsel used for?
AI assistant from Thomson Reuters for legal, tax and audit professionals, grounded in trusted Westlaw and Practical Law content.
Is CoCounsel free?
The vendor does not state this clearly on the homepage or pricing page.
How much does CoCounsel cost?
The vendor does not publish prices publicly or requires sign-in.
What are the best CoCounsel alternatives?
Closest alternatives: Harvey, Legora, Lexis+ with Protégé, fynk, Spellbook.
Data checked October 12, 2026 on the vendor website (thomsonreuters.com).