this post was submitted on 01 Jun 2025
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I'm looking for an article showing that LLMs don't know how they work internally (feddit.it)
submitted 4 days ago* (last edited 4 days ago) by lgsp@feddit.it to c/technology@lemmy.world
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I found the aeticle in a post on the fediverse, and I can't find it anymore.

The reaserchers asked a simple mathematical question to an LLM ( like 7+4) and then could see how internally it worked by finding similar paths, but nothing like performing mathematical reasoning, even if the final answer was correct.

Then they asked the LLM to explain how it found the result, what was it's internal reasoning. The answer was detailed step by step mathematical logic, like a human explaining how to perform an addition.

This showed 2 things:

  • LLM don't "know" how they work

  • the second answer was a rephrasing of original text used for training that explain how math works, so LLM just used that as an explanation

I think it was a very interesting an meaningful analysis

Can anyone help me find this?

EDIT: thanks to @theunknownmuncher @lemmy.world https://www.anthropic.com/research/tracing-thoughts-language-model its this one

EDIT2: I'm aware LLM dont "know" anything and don't reason, and it's exactly why I wanted to find the article. Some more details here: https://feddit.it/post/18191686/13815095

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[–] theunknownmuncher@lemmy.world 77 points 4 days ago (2 children)

https://www.anthropic.com/research/tracing-thoughts-language-model its this one

[–] lgsp@feddit.it 21 points 4 days ago

Oh wow thank you! That's it!

I didn't even remember now good this article was and how many experiments it collected

[–] anzo@programming.dev 5 points 4 days ago

Here's a book for a different audience. Explains in layman terms why to be wary about this tech, https://thebullshitmachines.com/