[NikolaNovak]

That's using "hallucination" the way humans use it.

My understanding was that the term as used in the field is fairly well defined as "producing a confident answer that is not backed up / justified by training data". It has nothing to do with sentience or humanness.

[manimino]

An AI model that can only repeat its training data would be no better than normal text search.

AI models are useful precisely because they can interpolate - make guesses that incorporate information from many examples.

And this interpolation is called "hallucination" only when it happens to be a wrong answer?