Crazy how many times people have told me over the last five years that a solution to hallucinations was right around the corner — and yet he…

Crazy how many times people have told me over the last five years that a solution to hallucinations was right around the corner — and yet here we still are. This study tests how often LLMs invent answers when they should rely only on supplied documents. The problem is that companies often use LLMs to answer questions from documents and they assume document-based LLM systems are safer because the model is given source material. This s…

Source: Gary Marcus (X) | 2026-06-25