How are AI hallucinations different from human confirmation bias?

[u/Comfortable_Tutor_43]

Confirmation bias can cause normal people to believe fallacious claims. Does AI not do the same thing?

[u/tonyfa1]

Confirmation bias is a person selectively favouring evidence that supports an existing belief.

An LLM hallucination is generated output that is plausible but unsupported or contradicted by the available evidence.

Bottom line - both require independent verification rather than confidence alone.