Karpathy releases nanochat
nanochat released — billed as the best ChatGPT that $100 can buy, it reproduces the full pipeline, from the tokenizer through pretraining, midtraining, SFT and RL to a web UI, on a single 8xH100 node for about $92
Why it matters
Brought frontier-model training down from a secret to a reproducible recipe. The culmination of the nanoGPT and llm.c lineage
Source — Primary sources first; secondary reports are labelled “Press”
Officialgithub.comhttps://github.com/karpathy/nanochat/discussions/1Added in Week 35, 2026 · See that week