nanochat
Build your won ChatGPT for $100 on a single GPU
About
nanochat is an open-source project by Andrej Karpathy focused on training a ChatGPT-like model for under $100, emphasizing accessibility and simplicity. It provides a complete codebase, scripts for various training stages (pretraining, midtraining, SFT, RL), and evaluation metrics. The project aims to be a readable, hackable, and maximally-forkable 'strong baseline' codebase that runs end-to-end to produce a ChatGPT clone and its performance report. It supports different hardware configurations, including CPU/MPS, and offers guides for customization, scaling to larger models (up to $1000 tier), and tools for querying the repository content with LLMs.
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