Proving that we are indeed now living in Wonderland, a "hallucination" is now the word for a language model following its programming perfectly, making not a single mistake.

Alice laughed. 'There's no use trying,' she said. 'One can't believe impossible things.'

I daresay you haven't had much practice,' said the Queen. 'When I was your age, I always did it for half-an-hour a day. Why, sometimes I've believed as many as six impossible things before breakfast.