Joel Hron is the chief technology officer of Thomson Reuters, where his teams build Westlaw, Practical Law, and CoCounsel for professionals in more than 100 countries. He joined Chain of Thought at the launch of Thomson, the company’s own legal AI model, to explain why a 175-year-old company chose to train its own model for about $40 million rather than only rent frontier intelligence, and how rebuilding CoCounsel around agent-native tools moved one-shot accuracy from 25% to over 70%.
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Maybe more actually. We were flying carrier pigeons across the sea to deliver news way back in the day. So yeah, pretty old. we're probably one of the oldest companies on the planet. So I would venture to say the odds are pretty good we might be the oldest, but I don't want to state something I factually don't know.
Thomson 1: The New $40M Legal AI Model | Thomson Reuters Joel Hron