[irrational]

Hallucinations are defined as “Perception of visual, auditory, tactile, olfactory, or gustatory experiences without an external stimulus and with a compelling sense of their reality, usually resulting from a mental disorder or as a response to a drug.”

That doesn’t sound like what AI/LLMs are doing, at all. There is no mental disorder or drugs causing then to output what we would consider to be false information. The machine is not perceiving anything without an external stimulus. Everything they generate is from the stimulus we have given it.