Introduced on day 42
Hallucination
Generated content that is not supported by the provided context or by reality, usually fluent and confident in tone.
In detail
Useful sub-types are contradiction of the source and unsupported addition. Fluency and confident tone are not evidence. Remedies include grounding in retrieved or tool-supplied evidence, allowing the model to abstain, and verifying identifiers and numbers against a system of record; sampling settings do not remove it.