Thomson Reuters CoCounsel Tests Custom LLM from OpenAI, Broadening its Multi-Model Product Strategy

In This Article:

Global pioneer in professional-grade GenAI first to employ custom model built on OpenAI o1-mini.

  • Custom model just the latest to be tested on the CoCounsel platform as part of company's multi-model approach to LLM-powered solutions

  • Thomson Reuters GenAI solutions for professionals, the only such products grounded in the world's leading content and expertise, provide uniquely sought-after testing ground for LLM technology leaders

TORONTO, Nov. 25, 2024 /PRNewswire/ -- Thomson Reuters (TSX/NYSE: TRI), a content-driven technology company, today announced they are testing a version of their CoCounsel GenAI assistant that employs a custom model built on OpenAI o1-mini, the AI pioneer's latest large language model (LLM), notable for its enhanced reasoning skills. Because OpenAI o1-mini "thinks" before it responds—"chain of thought" reasoning—it enables CoCounsel to accurately perform certain highly analytical and data-driven tasks for the first time. While this means answers take longer, it also means they're more detailed, thorough, and accurate.

Thomson Reuters (PRNewsfoto/Thomson Reuters)
Thomson Reuters (PRNewsfoto/Thomson Reuters)

Building on Thomson Reuters' proprietary datasets, the CoCounsel and OpenAI teams have collaborated to create this custom model, now in a proof-of-concept phase ahead of the new LLM's general availability. The original CoCounsel, launched in March 2023, was the first legal tech tool to publicly announce the use of OpenAI's GPT-4, and similarly was built in collaboration and early access with OpenAI, on its groundbreaking model. As CoCounsel has evolved and expanded, particularly since becoming the single GenAI assistant across Thomson Reuters products, so has the product team's strategy for employing LLMs to deliver the best possible performance for CoCounsel customers. Their current multi-model approach has set the standard for testing in-development models in partnership with LLM leaders.

This is just the latest work between the two technology companies, as  CoCounsel was founded on a deep relationship with OpenAI, being the first legal tech tool to publicly announce the use of the GPT-4 large language model (LLM).

"We're proud of our longstanding work with Thomson Reuters and learning how they use o1-mini to power new legal workflows," said Kevin Weil, Chief Product Officer at OpenAI. "Building a custom o1-mini model into CoCounsel equips legal professionals with advanced AI reasoning capabilities, supporting them in addressing challenging legal problems."

Pioneering application of GenAI to professional-grade solutions

As the first and leading solution of its kind—a professional-grade GenAI assistant—CoCounsel uniquely offers LLM creators a robust installed and daily active customer base, who are ready and willing to test the model evolutions. Many of these customers are early innovators in the GenAI revolution and have been users for more than 18 months. This has in part led to the 1,400% increase in CoCounsel users in less than a year. These users' multi-step use cases, such as legal workflows, offer particularly valuable testing ground to LLM development teams Additionally, CoCounsel offers LLM teams the opportunity to evaluate new models' performance across several products—including CoCounsel Core, Westlaw Precision, Practical Law Dynamic Tool Set, and CoCounsel Drafting—that tackle a wide range of sophisticated tasks.