Video · Andrej Karpathy

Let's build GPT: from scratch, in code, spelled out.

A hands-on build of a GPT-style model, explaining each piece as you go.

AI

Watch on YouTube In the library Cool, this is cool: Let's build GPT: from scratch, in code, spelled out.

Added Oct 17, 2026 · hand-picked and checked by Neuralignition. Opens on www.youtube.com.