What is it?
An AI hallucination is an answer that sounds confident but is wrong, unsupported, or invented. That is the dangerous part. It may not look wrong. The writing can be smooth. The tone can be calm. The answer can include names, dates, sources, or numbers. But smooth writing is not proof. A hallucination can be a fake citation, a wrong policy, a made up feature, or a confident answer that the source does not support.
