Harry Fu

Harry Fu

LLM Engineer | Creator of CookLLM
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Go deep. Build real things.

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  • CookLLM
    CookLLMGo deep. Build real things.
    Feb 2026
    • 🎉
    Joined Product HuntFebruary 25th, 2026

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Harry Fu•

3mo ago

CookLLM - Go deep. Build real things.

CookLLM is a hands-on LLM engineering course where you build everything from scratch — tokenizer, model architecture, GPU kernels, Flash Attention, pretraining, and RLHF — with interactive visualizations and zero black boxes.
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