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Show HN: I built a tiny LLM to demystify how language models work

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Re: Show HN: I built a tiny LLM to demystify how language models work

#71

Great work! I still think that [1] does a better job of helping us understand how GPT and LLM work, but yours is funnier. Then, some criticism. I probably don't get it, but I think the HN headline does your project a disservice. Your project does not demystify anything (see below) and it diverges from your project's claim, too. Furthermore, I think you claim too much on your github. "This project exists to show that…

this comment seems to be astroturfing to sell a course

Re: Show HN: I built a tiny LLM to demystify how language models work

#73
post #61

https://bbycroft.net/llm has 3d Visualization of tiny example LLM layers that do a very good job at showing what is going on ( https://news.ycombinator.com/item?id=38505211 )

have little to do with this, but i have to say your project are indeed pretty cool! Consider adding some more UI?

Re: Show HN: I built a tiny LLM to demystify how language models work

#74
post #53

Could it be possible to train LLM only through the chat messages without any other data or input? If Guppy doesn't know regular expressions yet, could I teach it to it just by conversation? It's a fish so it wouldn't probably understand much about my blabbing, but would be interesting to give it a try. Or is there some hard architectural limit in the current LLM's, that the training needs to be done offline and with…

What does "done offline" mean? Otherwise you are limited by context window.

Re: Show HN: I built a tiny LLM to demystify how language models work

#79
post #64

How does this compare to Andrej Karpathy's microgpt ( https://karpathy.github.io/2026/02/12/microgpt/ ) or minGPT ( https://github.com/karpathy/minGPT )?

I haven't compared it with anything yet. Thanks for the suggestion; I'll look into these.

Re: Show HN: I built a tiny LLM to demystify how language models work

#80
post #30

I like the idea, just that the examples are reproduced from the training data set. How does it handle unknown queries?

It mostly doesn't, at 9M it has very limited capacity. The whole idea of this project is to demonstrate how Language Models work.
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