Learn by running code
Every concept begins with a tiny Rust example and deterministic output.
From text to a working model
Build an LLM from first principles
Follow small, executable examples until tensors, attention, training, and generation fit together as one Rust program.
Connect code to the formula
Symbols are introduced only when they explain the behavior you can observe.
See what came before
Each chapter contrasts the modern component with the historical approach it replaced.