Building an LLM from Scratch: A Hobbyist's Journey

2025-02-19

An AI enthusiast meticulously worked through Sebastian Raschka's book, 'Building a Large Language Model (From Scratch)', hand-typing most of the code. Despite using underpowered hardware, they successfully built and fine-tuned an LLM, learning about tokenization, vocabulary creation, model training, text generation, and model weights. The experience highlighted the benefits of hand-typing code for deeper understanding and the value of supplementary exercises. The author reflects on preferred learning methods (paper vs. digital) and plans to delve deeper into lower-level AI/ML concepts.

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