hallucinate

1. (ambitransitive) To seem to perceive things (with one or more of one's senses) which are not really present; to have visions; to experience a hallucination.Synonyms: imagine, see thingsambitransitive

2. (artificial intelligence, of a model) To produce information that is not supported by the model's training data.Examples: "In case you were wondering, the yahoo url above doesn’t actually exist, the model just hallucinated it."; "Despite maintaining plausible general linguistic capabilities, dialogue models are still unable to fully discern facts and may instead hallucinate factually invalid information."; "Rankin sanctioned Ayala $3,000 and kicked him off the lawsuit after the lawyer admitted incorporating the hallucinated AI-generated cases in the brief. Morgan and Goody were sanctioned $1,000 each."