After pushback following Stanford’s research study “Hallucination-Free? Assessing the Reliability of Leading AI Legal Research Tools,” for what many saw as comparing apples to oranges—between Thomson Reuters’ (TR) Ask Practical Law and LexisNexis’ Lexis+ AI—the researchers released an updated study on May 30.

This time, they included results from AI-Assisted Research on Westlaw Precision, TR’s flagship, generative AI-powered legal research solution that is more comparable to Lexis+ AI than Ask Practical Law.