AI Legal Tech

Thomson Reuters CoCounsel review for Australian law firms

Professional AI legal assistant built on 174 years of Thomson Reuters trusted content

Pricing and product features can change. This profile is general information, not a vendor quote or professional recommendation.

Founded1799

HeadquartersToronto, Canada (AU team & data hosting)

Pricing modelContact Vendor

Firm sizesSolo, Small, Mid-Tier, Large, Enterprise

Thomson Reuters CoCounsel overview

CoCounsel is Thomson Reuters' professional-grade AI legal assistant, built on 174 years of trusted legal content and powered by 1,000+ AI and data science professionals. It delivers AI-assisted legal research grounded in Westlaw and Practical Law, advanced document analysis (review, compare, summarise, timeline creation), drafting automation with built-in proofing, and knowledge search across your own work product. CoCounsel holds ISO/IEC 42001:2023 certification for AI management systems — the first major legal AI platform to achieve this standard. For Australian firms, all customer prompts, content, and outputs are hosted and processed locally in Australia, addressing data sovereignty and compliance requirements. A dedicated local team of AI and legal specialists supports Australian customers.

Key capabilities

CoCounsel grounds all research outputs in Thomson Reuters' authoritative content databases (Westlaw, Practical Law), rather than the open internet, significantly reducing hallucination risk. A dedicated Trust Team of lawyers runs over 1,500 automated tests nightly to validate output quality. The platform's ISO/IEC 42001:2023 certification provides independent assurance of AI governance practices — the first major legal AI platform to achieve this standard. For Australian customers, all data is hosted and processed locally, and a local team of AI and legal specialists provides support. CoCounsel does not use customer content or prompts to train its models.

Legal Research Intelligence (Westlaw + Practical Law grounded)
AI-Powered Library & Knowledge Search
Document Analysis — Review, Compare, Summarise
Timeline Creation & Witness Preparation
Drafting Automation with Built-in Proofing
Contract Drafting & Playbook Integration
Compliance Reviews
ISO/IEC 42001:2023 AI Management Certification
Australian Data Hosting & Processing
Microsoft 365 Integration
Multi-language Document Support

Pricing information

Custom quote. Contact Thomson Reuters AU for AUD pricing. CoCounsel Core has been noted from approximately AUD $350/user/month in international markets — Australian pricing may vary.

Best suited to

Law firms and in-house legal teams seeking a professionally governed, hallucination-reduced AI assistant — particularly those already using Westlaw, Practical Law, or other Thomson Reuters products. Suited to firms with data sovereignty requirements.

Potential advantages

Grounded in authoritative Westlaw and Practical Law content — reduces hallucination risk
ISO/IEC 42001:2023 AI Management Certification — first major legal AI to achieve this
Australian data hosting and processing — strong data sovereignty compliance
1,500+ automated nightly tests by a dedicated Trust Team of lawyers
Does not train on customer content or prompts
Deep integration with Thomson Reuters ecosystem (Westlaw, Practical Law, HighQ)
Dedicated local AU team of AI and legal specialists

Points to verify

Premium pricing — typically suited to mid-tier, large, and enterprise firms
Maximum value for firms already using Westlaw or Practical Law subscriptions
Less suited to firms outside the Thomson Reuters ecosystem
Custom pricing requires direct engagement with Thomson Reuters AU

Integrations

Westlaw Precision Australia, Practical Law Australia, HighQ, Microsoft 365, Microsoft Word, Microsoft Teams, Document Management Systems

Visit the Thomson Reuters CoCounsel website