Thomson Reuters advances its AI portfolio with Deep Research on Practical Law, new HighQ integration, and multilingual expansion of CoCounsel Legal.
Thomson Reuters has announced a new wave of AI-powered innovations that expand the reach and capabilities of CoCounsel Legal, the company’s professional-grade generative AI platform. The updates include the beta launch of Deep Research on Practical Law, full integration with HighQ, and regional expansion in French, German, and Japanese, slated for October.
Currently in beta with select customers, Deep Research on Practical Law represents a major step toward a unified, trusted AI research solution. The system plans research steps, retrieves relevant guidance and templates from Practical Law, and produces supported, clearly reasoned conclusions. It adapts dynamically to follow-up questions, enabling deeper, more nuanced legal analysis.
This marks a new evolution in how lawyers interact with Thomson Reuters’ knowledge ecosystem. By combining Practical Law’s rich know-how with Westlaw’s primary-law expertise, Deep Research gives lawyers a streamlined, AI-assisted workflow for comprehensive legal research. The feature will launch in the U.S. in the first half of 2026, followed by UK availability for both Westlaw and Practical Law integrations.
“In this dynamic legal environment, continuous innovation is a necessity,” said Raghu Ramanathan, President of Legal Professionals at Thomson Reuters. “We’re investing more than $200 million annually in AI to develop cutting-edge solutions. Innovations like Deep Research on Practical Law and new CoCounsel integrations empower legal professionals to not only navigate this transformative era—but to thrive in it.”
CoCounsel Meets HighQ
Thomson Reuters has also launched deep integration between CoCounsel Legal and HighQ, its collaboration and workflow automation platform used by over 1 million professionals worldwide. Through this integration, HighQ users can access CoCounsel’s document review, drafting, and Q&A capabilities directly within their collaborative workspaces.
New features include:
- HighQ Document Insights, powered by CoCounsel’s summarization tools, allowing users to quickly understand and extract key information from documents.
- CoCounsel Drafting, which enables seamless document review, redlining, and playbook comparison—all without leaving the HighQ environment.
- Self-Service Q&A, an AI-driven search experience that transforms static document repositories into interactive knowledge hubs, delivering summarized answers from curated content in minutes.
Together, these updates allow legal teams to work faster and more intelligently, eliminating version-control issues and reducing manual uploads while creating new opportunities for AI-powered client collaboration.
With CoCounsel Legal’s multilingual expansion, Deep Research on Practical Law, and integrations across HighQ, Thomson Reuters is reinforcing its position as a global leader in enterprise-grade legal AI—focused on delivering trust, scale, and efficiency across the profession.