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Casetext (CoCounsel)

AI assistant for legal, tax, audit, and accounting work

CoCounsel is Thomson Reuters’ AI assistant for professionals in legal, tax, audit, and accounting. It connects to trusted content and existing workflows to help you research, review, and draft faster.

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About

What It Is

CoCounsel is a professional AI assistant from Thomson Reuters aimed at legal, tax, audit, and accounting teams. The product is positioned as “industry-leading AI for professionals” and is built around trusted domain content rather than general-purpose chat.

What To Know

The strongest signal in the content is trust and security: Thomson Reuters says CoCounsel uses authoritative content, is backed by its AI and machine-learning experts, and is not used to train AI models with customer data. That makes it a better fit...

Key Features
Grounded answers and workflows for legal, tax, audit, and accounting professionals
Integrates with Westlaw, Practical Law, Checkpoint, Microsoft 365, and document management partners
Supports legal research, tax calculations, compliance reviews, and contract drafting
Uses authoritative content and domain-specific expert oversight
States that customer data is not used to train AI models
Use Cases
A law firm uses CoCounsel to speed up legal research and contract drafting
A tax team uses it to support tax calculations and review workflows
An audit group uses it to help with compliance review tasks
Agenticness: Guided Assistant

Executes tasks you assign, one step at a time, within narrow domains.

High evidence
Last evaluated: Apr 13, 2026

Dimension Breakdown

Action Capability
Autonomy
Adaptation
State & Memory
Safety
How agenticness works →

Categories

Legal AI
Pricing

Pricing not publicly available.

Details
casetext.com
AddedApril 1, 2026
RefreshedApril 13, 2026
Agenticness
Guided Assistant
Quick Facts
DeploymentCloud-hosted
AutonomyCopilot (human-in-loop)
Model supportMulti-model
Open sourceNo
Team supportEnterprise
Pricing modelSubscription
Interfaceweb, api
Sources
WebCoCounsel: The industry-leading AI for professionals | Thomson Reuters
Last updated April 13, 2026
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