this post was submitted on 24 Jun 2023
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The issue is that LLMs are fundamentally not able to not know something. Non-LLM filters that are strapped in front of an LLM can catch stuff like that ("As an LLM I am not able to..."), but if the request makes it through the filter, the LLM is not able to say "Sorry, I don't know that", because the data set doesn't contain that.
For example, there aren't a lot of API documentations that contain a "Sorry, I don't know how this endpoint works".
Strongly agreed. I view this as the biggest issue with LLMs. They will hallucinate a confidently incorrect answer for those cases. It makes them misinformation machines.
Getting reliable information out of an LLM is almost impossible.
The hallucinations look so real, that to spot them, you need to already know the correct answer. And if you know the correct answer, why do you need to ask the question?
And if you don't know the answer, you can never know whether the answer is actually based in reality at all or a pure fabrication.