>This is akin to giving someone a textbook on an obscure subject that has certain factual errors, letting them know they can use that textbook in a quiz on that subject, and then quizzing that person on those facts that the textbook gets wrong.

That strikes me as an incredibly appropriate test because LLM’s are unreliable with factual statements. People need to be able to understand that and not treat them like textbooks which are basically 99.9% accurate (let’s please not bicker over the 99.9%. It’s close enough. A major textbook is safe to treat as accurate, an LLM is not).