What Does This Mean?
Output from an AI system that is false or misleading but presented as fact, such as an invented citation or a made-up detail given in a confident tone. It is the usual full phrase for the shorter "hallucination" in AI talk.
REAL-WORLD EXAMPLE
"The lawyer's brief cited a case that did not exist, a classic AI hallucination."
LORE & ORIGIN
Wikipedia describes the term as a borrowing from the psychology of hallucination. It says the phrase first referred to adding detail in computer vision, came to mean factually wrong output in the 2010s, and spread widely after chatbots such as ChatGPT appeared in 2022. Some researchers avoid it because it treats software as if it had perceptions, and prefer words like confabulation or fabrication. Differs from hallucination, the short everyday form, and from hallucination-trap, which names a prompt or situation likely to trigger such output rather than the output itself.
MENTIONS OVER TIME
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