Insights from the Andrej Karpathy episode “Let's build GPT: from scratch, in code, spelled out.”, published January 17, 2023.
Andrej Karpathy demonstrates how to build a character-level language model from scratch using the Transformer architecture. By stripping away production-grade complexity, he reveals the core mechanics of self-attention, residual connections, and layer normalization that power modern systems like ChatGPT.
Topics: AI, Transformers, Machine Learning, GPT, Coding