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Global legal technology provider Thomson Reuters has reached a major milestone, with 1 million professionals now relying on CoCounsel for high-stakes legal, tax, and compliance work.
Thomson Reuters’ GenAI assistant, CoCounsel, has hit a landmark milestone, with 1 million professionals in 107 countries now turning to the technology for critical, high-stakes work.
The global legal technology provider explained that this milestone reflects a broader shift as regulated industries – including legal, risk, compliance, tax, accounting, audit, and global trade professionals – move from AI experimentation to fully integrated, production-ready systems.
Rather than relying on standalone, general-purpose AI, Thomson Reuters highlighted how firms are now embedding AI directly into daily workflows, creating systems robust enough to withstand scrutiny in courtrooms, audits, and regulatory reviews.
Thomson Reuters highlighted that CoCounsel is designed to meet the exacting demands of regulated professions, retrieving authoritative sources, verifying citations, and applying jurisdiction-specific rules to deliver outputs that can stand up under scrutiny.
CoCounsel powers capabilities across Thomson Reuters’ portfolio, including CoCounsel Legal, CoCounsel Tax and Audit, and ONESOURCE+.
The system seamlessly integrates with the tools professionals already rely on, draws on 175 years of meticulously curated licensed content, incorporates expert-validated logic, and delivers structured, citation-backed outputs designed for high-stakes work.
The legal tech provider also confirmed that every output is rigorously validated by over 4,500 subject-matter experts and structured to deliver citation-backed, reliable responses.
Steve Hasker, president and chief executive of Thomson Reuters, highlighted that in today’s high-stakes professional world, the question is no longer whether to use AI, but which AI professionals can be trusted with their reputation and client data.
“Professionals are not deciding whether to use AI anymore. They are deciding which AI they trust when their reputation and their clients’ data are on the line,” Hasker said.
It is this trust – rooted in authoritative content and expert validation – that, Hasker explained, has led 1 million professionals to rely on CoCounsel for their work.
“CoCounsel is built for moments when being almost right is not good enough. It is grounded in decades of authoritative content, validated by domain experts, and backed by a clear commitment that customer data remains theirs,” Hasker said.
“That is why 1 million professionals rely on CoCounsel.”
David Wong, chief product officer at Thomson Reuters, stressed that when the work really matters, professionals need AI that meets the standards they’re held to, and the fact that 1 million users across 100-plus countries rely on CoCounsel shows the world is taking notice.
“When the work matters, the AI must be professional-grade. Professionals need systems that can complete sophisticated work within the standards they are accountable to every day. That’s the gap between CoCounsel and everything else,” Wong said.
“One million CoCounsel users across 100-plus countries reflects a shared global consensus.”
