Python (2 blogmarks)
← Blogmarksmicrogpt
http://karpathy.github.io/2026/02/12/microgpt/Andrej Karpathy’s latest blog post (he doesn’t post very often, so you wanna check it out when he does) presents an implementation of a GPT in 200 lines of python with no dependencies.
This file contains the full algorithmic content of what is needed: dataset of documents, tokenizer, autograd engine, a GPT-2-like neural network architecture, the Adam optimizer, training loop, and inference loop. Everything else is just efficiency.
Python Resources for Experienced Developers
https://www.reddit.com/r/Python/s/i6Ep6OhDOuThese are three books recommended to read, in this order (but, of course, choose your own adventure):