Claude's Hallucination Fail: Fabricates Scholar's Move to MIT

conitzer · x · 2026-07-30

Researcher Vincent Conitzer discovered a severe factual hallucination in Claude, which confidently claimed that he had moved to MIT. Conitzer jokingly noted that this was news to him, while humorously adding that he'd still be the star in AGT (Algorithmic Game Theory).

Related event: Claude's Web Search Caught Hallucinating Scholar's MIT Move(3 posts)→

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