AI hallucination
Simple
When AI makes something up and says it like it's true.
Standard
A 'hallucination' is when an AI produces information that sounds confident but is actually wrong or invented β like a fake fact or a made-up source. It's why you should always check important answers.
Detailed
Because generative models produce statistically likely text rather than retrieving verified facts, they can fabricate details, citations, or events. This is called hallucination. It's not the model 'lying' β it has no concept of truth. Mitigations include grounding answers in provided documents and always verifying claims that matter.