Even with RAG, Legal AI from Westlaw and Lexis+ Hallucinates 17% of the Time

A recent Stanford study reveals that leading commercial legal AI systems from Thomson Reuters and LexisNexis, which use Retrieval-Augmented Generation (RAG), still "hallucinate" or invent facts in roughly 17% of cases. This challenges their marketing claims of being "hallucination-free" and highl...