I Built a Small LLM From Scratch — Here’s What I Finally Understood About Transformer

I used to understand Large Language Models mostly from the outside. I knew terms like: Transformer Attention Embeddings Tokens Fine-tuning GPT LLM But knowing the terminology is very different from understanding what actually happens inside a model. So instead of only reading about LLMs, I decided…

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Timeline · 2 reports

1. 2026-10-21 05:29 · DEV Community — Machine Learning
   I Built a Small LLM From Scratch — Here’s What I Finally Understood About Transformers
2. 2026-10-21 05:13 · DEV Community — Machine Learning
   I Built a Small LLM From Scratch — Here’s What I Finally Understood About Transformer