AI & the web
Hallucination
In AI, an output that presents unsupported or incorrect information as if it were reliable.
In everyday use
An assistant invents a source title that does not exist.
What to keep in mind
Check important facts and cited sources rather than trusting confident phrasing.
Also searched as: AI hallucination
Further reading
Original explanation and example by Perspectism. Further reading may cover the wider subject, rather than this exact wording. Edition updated 7 October 2026.
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