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dbbklast Tuesday at 8:48 PM7 repliesview on HN

When they say "can't hallucinate" they mean they produce a confidence value for every result, so you could see for example it has 0.1 confidence, and you can disregard the result - that'd be different from hallucinating where it believes it's correct


Replies

8noteyesterday at 12:07 AM

if it puts a high confidence value on a wrong answer, thats still hallucinating, no?

llm hallucinations are high probability tokens that are incorrect vs the real world

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janalsncmlast Tuesday at 8:56 PM

Technically speaking when you send the prefix “The capital of France is “ into an LLM it will also produce probabilities across its whole vocabulary.

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CompleteSkepticlast Tuesday at 8:54 PM

that's right, but because these models are probabilistic, it's also possible to be confidently wrong (and all future models will be smarter still and still have that possibility)

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orbital-decaylast Tuesday at 10:15 PM

Yeah but what stops it from producing confidently incorrect outputs...

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darylteoyesterday at 3:43 AM

I read "hallucinations" as "generates novel output with no grounding/source". i.e. "it just made something completely up".

I believe their "accuracy" metric (sonnet 5 level) is where "right/wrong" is measured.

bradlyyesterday at 3:58 AM

What about the LLM calls though that are done midchain? In the Home Assistant video the multi-intent prompt gets split using what looks like a traditional llm model, which I'm assuming is vulnerable to classical hallucinations.

csomaryesterday at 4:26 AM

That's really funny when you consider that generative models also don't hallucinate if you check up on them on every token generated?