FemtoGPT – Pure Rust implementation of a GPT language model
Pure Rust implementation of a minimal Generative Pretrained Transformer - keyvank/femtoGPT
FemtoGPT – Pure Rust implementation of a GPT language model launched on June 4, 2023 with 19 votes, #1,570 of 4,655 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 3 years on.
In plain words
FemtoGPT is a lightweight language model implementation written entirely in Rust. It allows developers to build and run GPT-style models with a minimal, efficient codebase. The project targets programmers interested in understanding language model architecture or deploying models in performance-critical environments where Rust's speed and memory safety are advantageous. Its pure-Rust approach distinguishes it from implementations relying on external dependencies or other languages.
written from the facts on this page · September 2026
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