Thomson Reuters
Verified ⭐ FeaturedAgentic AI platform transforming legal, tax, and professional workflows
About Thomson Reuters
Thomson Reuters delivers cutting-edge AI solutions through its CoCounsel Agentic AI Platform, launched in June 2025. The platform represents a paradigm shift in professional services, featuring agentic AI systems that can autonomously plan, reason, act, and react within complex real-world workflows. Unlike simple AI assistants that merely respond to queries, CoCounsel operates inside actual professional workflows to complete sophisticated multi-step assignments with complete transparency, precision, and accountability. Built on an unparalleled foundation of 20 billion+ documents, 15+ petabytes of curated data, and 500+ trusted content assets, Thomson Reuters leverages partnerships with leading AI providers including OpenAI, Anthropic, Google Cloud, and AWS. The platform is supported by 4,500 subject matter experts and 180+ dedicated AI engineers who continuously refine and improve the systems. CoCounsel includes specialized versions for different professional domains: CoCounsel for Tax, Audit, and Accounting automates complex workflows, accelerates research, and provides comprehensive document analysis; CoCounsel Legal integrates with Westlaw to deliver Deep Research capabilities and Guided Workflows that think like experienced lawyers; and Ready to Review streamlines tax return preparation. The platform features goal-based execution, task-specific tool orchestration, human-in-the-loop oversight for critical decisions, transparent reasoning with traceable sourcing, and custom LLMs trained by in-house experts. Thomson Reuters has achieved remarkable adoption, with 26% of legal organizations now actively using their generative AI solutions, up from 14% in 2024. The technology is responsible for up to 24% of the group's underlying contract value, demonstrating its transformative impact on professional services.
✨ Key Features
- ✓ CoCounsel Agentic AI: Autonomous planning, reasoning, and action capabilities
- ✓ Westlaw Deep Research: AI that thinks like a lawyer for in-depth legal analysis
- ✓ CoCounsel Guided Workflows: Step-by-step AI assistance for complex tasks
- ✓ Tax, Audit, and Accounting automation with comprehensive document analysis
- ✓ Ready to Review: Streamlined tax return preparation and verification
- ✓ 20B+ documents and 15+ petabytes of professionally curated data
- ✓ Goal-based execution with transparent reasoning and traceable sourcing
- ✓ Human-in-the-loop oversight for critical professional decisions
- ✓ Custom LLMs trained by 4,500+ subject matter experts
- ✓ Multi-provider AI integration (OpenAI, Anthropic, Google, AWS)
⚖️ Pros & Cons
👍 Pros
- ✓ Unmatched data foundation: 20B+ documents, 15+ petabytes of professional content
- ✓ True agentic AI that autonomously handles complex multi-step workflows
- ✓ Industry-leading adoption: 26% of legal organizations actively using
- ✓ Transparent reasoning with full audit trails and traceable sourcing
- ✓ Custom LLMs refined by 4,500+ subject matter experts
- ✓ Multi-provider AI strategy leveraging best-in-class models
- ✓ Human-in-the-loop design ensuring professional oversight
- ✓ Proven ROI: Responsible for 24% of contract value
👎 Cons
- ✗ Premium pricing may be prohibitive for small firms
- ✗ Steep learning curve for advanced workflow automation
- ✗ Requires integration with existing practice management systems
- ✗ Enterprise focus limits accessibility for solo practitioners
- ✗ Ongoing training required for staff to maximize platform benefits
💡 Use Cases
Complex legal research and case law analysis
Tax return preparation and compliance verification
Audit workflow automation and documentation review
Contract analysis and risk assessment
Regulatory compliance monitoring and reporting
Due diligence document review for M&A transactions
Legal brief preparation and citation verification
Multi-jurisdictional legal research
Financial statement analysis and reporting
Professional continuing education and training
🎯 Who Should Use This Tool
Large law firms, corporate legal departments, accounting firms, tax professionals, audit teams, compliance officers, legal researchers, in-house counsel at Fortune 500 companies, professional service organizations, and enterprises requiring sophisticated AI-powered legal and financial analysis
💰 Pricing Information
Enterprise subscription model with customized pricing based on organization size and needs. Platform includes access to CoCounsel AI, Westlaw with Deep Research, specialized tax/audit/accounting tools, and comprehensive legal research databases. Generative AI features responsible for 24% of contract value. Contact sales for detailed pricing tailored to specific professional service requirements.
📊 Performance Metrics
🔒 Security & Privacy
Enterprise-grade security with SOC 2 Type II compliance. GDPR and CCPA compliant data handling. Multi-layered access controls and audit trails. Secure API integrations with major cloud providers. Regular third-party security audits. Encrypted data in transit and at rest. Professional services confidentiality standards.
🔄 Alternatives
LexisNexis
Casetext (CoCounsel competitor)
Harvey AI
vLex
Fastcase
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