What problem does it solve?
nanoGPT makes it easy to understand how a GPT-style language model works by providing a compact, readable implementation of the full training and inference stack. It replaces opaque framework-heavy setups with a minimal codebase that is ideal for learning, experimentation, and fast iteration.
Core Features & Use Cases
- Minimal GPT architecture: Shows the core transformer blocks, attention, MLP layers, embeddings, and generation logic in a form that is easy to study and modify.
- Training workflows: Covers character-level Shakespeare training, GPT-2 reproduction on OpenWebText, fine-tuning pretrained checkpoints, and custom dataset training.
- Practical engineering details: Includes data preparation, binary token formats, cosine learning-rate scheduling, gradient accumulation, mixed precision, checkpointing, and distributed training examples.
- Use case: A researcher or student can use this skill to learn transformer internals, reproduce GPT-2 style experiments, or adapt the pipeline to a new text corpus.
Quick Start
Ask the nanogpt skill to explain the model, prepare Shakespeare data, train a small GPT, and generate sample text from the resulting checkpoint.