CoCounsel

Freemium

AI by Thomson Reuters for legal, tax, audit, and accounting professionals, grounded in authoritative sources.

What is CoCounsel?

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.

What can CoCounsel do?

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.

Workflow integrations

Connects with tools already used in practice, including Westlaw, Practical Law, Checkpoint, Microsoft 365, and document management system partners.

Professional-grade use

Designed for legal, tax, audit, accounting, compliance, and drafting tasks, with the homepage calling out high-stakes professional work.

Transparent outputs

Surfaces sources and reasoning so users can inspect how an answer was produced and determine whether it can be defended.

Security controls

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.

Use Cases

“Legal drafting and review”

Draft and review work that needs to be explained and defended, especially where the user wants sourced outputs instead of general-purpose AI responses.

“Research-heavy professional work”

Accelerate research and analysis for matters that rely on authoritative references and expert-validated source material.

“Regulated financial workflows”

Support tax, audit, and accounting workflows where precision, transparency, and reviewability matter.

“Embedded team workflows”

Work inside existing firm or enterprise systems by connecting AI assistance to products such as Microsoft 365 and document management systems.

Frequently Asked Questions

What kinds of professionals is CoCounsel for?

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.

What tools does CoCounsel integrate with?

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.

How does CoCounsel support review and verification?

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.

How are user data and prompts handled?

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.

Is CoCounsel available through the Casetext pricing page?

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.

Quick Facts

Product: CoCounsel
Company: Thomson Reuters
Category: AI for professionals
Primary users: Legal, tax, audit, and accounting professionals
Source domain: casetext.com
Availability note: The captured Casetext pricing page says the service is no longer available