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Updated , rescanned every two hoursMonday, November 2, 2026

▲ 325 today59.6k starsPythonHN ×1

GPT-2 level chatbot for $50 on one GPU

LLMsInferenceCoding

karpathy/nanochat: preview

What is nanochat?

nanochat is a minimal Python harness that lets you train, fine-tune, and chat with a GPT-2-capable language model on a single GPU. Set the model size with a single `--depth` flag and you can spin up a conversational bot in a few hours for under $50.

Who it is for

If you want to experiment with LLMs without a cloud budget, nanochat gives you a cheap, end-to-end pipeline to build and talk to your own model.

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