CoCounsel (Thomson Reuters)
Level 15: Law & LegalTech
Business & Organisation · Level 15
In short
CoCounsel (Thomson Reuters) is an AI tool in the Law & LegalTech category from Thomson Reuters Corporation in Toronto, Canada. The pricing model is paid. It is with a German interface.
What is CoCounsel (Thomson Reuters)?
CoCounsel is an AI-powered legal assistant based on Casetext technology (a Thomson Reuters company), specifically designed to meet the rigorous demands of the legal profession. The tool leverages advanced large language models to automate complex legal tasks such as document review, legal research, and the summarization of pleadings with exceptional speed. It is deeply integrated into the Thomson Reuters legal ecosystem, enabling seamless access to comprehensive legal databases and authority.
The platform is distinguished by its high accuracy in citation, which significantly reduces the risk of AI hallucinations in legal contexts. Users can query uploaded documents or searchable databases, with the system linking retrieved information directly to specific passages in the source material. This ensures transparency throughout the analytical process and enhances the reliability of AI-generated work product for legal professionals.
Deployment occurs within a secure, closed-circuit environment tailored to the strict compliance requirements of law firms and corporate legal departments. Data privacy is safeguarded by robust technical measures that prevent sensitive client information from being utilized for the training of public models. Consequently, CoCounsel provides a professional-grade solution for the digital transformation of high-stakes legal workflows.
Core features & strengths
- Advanced Document Analysis — The tool parses thousands of pages of evidence or legal filings in minutes. It extracts key insights and provides exact citations from the source documents.
- Automated Legal Research — CoCounsel answers complex legal queries by analyzing current case law and statutes. It generates sound memos that serve as a direct foundation for formal legal briefs.
- Compliance and Security — The system is certified for use with highly sensitive data and offers granular control over data access. It ensures that no proprietary firm data is used to train base AI models.
Who is this tool for?
The tool is primarily intended for law firms, in-house legal departments, and specialized legal researchers. It is ideal for professional users within organizations dealing with high-volume document workflows.
Typical use case
A lawyer must assess the relevance of 500 emails and internal contracts for a high-stakes litigation case. Instead of conducting a manual review, the lawyer uploads all documents into CoCounsel and asks: 'Identify all instances of potential breach of the confidentiality agreement by the defendant.' CoCounsel scans the files, filters the pertinent communications, and produces a tabular summary with direct citations. The attorney receives a reliable foundation for the case strategy in a fraction of the time typically required.
What is CoCounsel (Thomson Reuters) good for?
- The tool is primarily intended for law firms, in-house legal departments, and specialized legal researchers. It is ideal for professional users within organizations dealing with high-volume document workflows.
- A lawyer must assess the relevance of 500 emails and internal contracts for a high-stakes litigation case.
- Advanced Document Analysis: The tool parses thousands of pages of evidence or legal filings in minutes. It extracts key insights and provides exact citations from the source documents.
- Automated Legal Research: CoCounsel answers complex legal queries by analyzing current case law and statutes. It generates sound memos that serve as a direct foundation for formal legal briefs.
- Compliance and Security: The system is certified for use with highly sensitive data and offers granular control over data access. It ensures that no proprietary firm data is used to train base AI models.
When a different tool fits better
CoCounsel should not be utilized for non-legal tasks or without critical human oversight. It is not suitable for users lacking the professional expertise required to validate and verify AI-generated output.
Pricing & plans
Plans in detail
- Enterpriseupon requestupon requestannually
- Customized pricing
- Enterprise-grade security standards
Good to know
- No public pricing list available.
- Access is managed via Thomson Reuters account management.
Prices checked on 26/09/2026. Prices based on public provider information, without warranty. Euro amounts are approximations; the provider's pricing page prevails.
Supported languages
The AI capabilities are primarily optimized for legal workflows in English but increasingly support multilingual document analysis.
Interface = the tool's menu language, content = the language you can work in. Without guarantee — vendors keep expanding their language coverage.
Privacy & GDPR
Data flow: Data is processed on secure servers meeting high-level legal compliance standards, subject to US law with specific protections for attorney-client privilege.
Training on your inputs: Thomson Reuters explicitly states that customer data is not used to train the underlying AI models.
For companies: Available for enterprise clients, covered by a Data Processing Addendum (DPA) within the service agreement.
Practical advice: Designed specifically for sensitive legal documents; suitable for analyzing confidential client matter information.
- GDPR:
- EU data protection regulation: defines how personal data may be processed and what rights you have (access, deletion, objection).
- DPA:
- Data Processing Agreement: contractually binds the provider to process your data only on your instructions. Usually mandatory for companies.
- SOC 2:
- Independently audited security report (access control, availability, confidentiality) — not a privacy seal, but a sign of professional IT security.
- Training on user data:
- Your inputs may feed into future model versions. Confidential content could in theory resurface in other users' answers.
Privacy data checked on 31/08/2026. Editorial summary based on public provider information — not legal advice. When in doubt, check the provider's current privacy terms.
Fact sheet
| Vendor | Thomson Reuters Corporation |
|---|---|
| Headquarters | Toronto, Canada |
| Category | Law & LegalTech |
| Pyramid level | Level 15 – Law & LegalTech |
| Pricing model | Paid |
| Free forever option | No |
| Open Source | No |
| Entry plan | Enterprise: upon request (upon request) |
| German | interface and content |
| English | interface and content |
| Privacy classification | Unclear |
| Data processing agreement | Available for enterprise clients, covered by a Data Processing Addendum (DPA) within the service agreement. |
Alternatives to CoCounsel (Thomson Reuters)
- BRYTER — Paid · HQ: Frankfurt am Main, Germany · GDPR / EU
- Contractbook — Paid · HQ: Kopenhagen, Denmark · GDPR / EU
- ContractHero — Paid · HQ: Berlin, Germany · GDPR / EU
- fynk — Freemium · HQ: Wien, Austria · GDPR / EU
- Harvey AI — Paid · HQ: San Francisco, United States · Unclear
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