About whether LLMs reason or only memorise, given that they hallucinate.
Has this happened?
Yes 39 (29%)Not sure 32 (24%)No 63 (47%)
Votes cast 1–2 October 2026: 100,590 votes from 9,694 people.
Hacker News has set AI a lot of challenges over the years. Which ones has it met?
About whether LLMs reason or only memorise, given that they hallucinate.
Votes cast 1–2 October 2026: 100,590 votes from 9,694 people.
The biggest evidence that LLMs can’t reason is hallucinations. If it could reason it would have rejected fictional generated output that make no sense.