Show HN: ZigFormer – An LLM implemented in pure Zig
habedi0 Thursday, November 27, 2025Hi everyone,
I've made an early version of ZigFormer, a small LLM implemented in Zig with no dependencies on external ML frameworks like PyTorch or JAX. ZigFormer is modelled after a textbook LLM (like GPT-2 from OpenAI) and can be used as a Zig library as well as a standalone application to train a model and chat with it.
This was mainly an educational project. I'm sharing it here in case others find it interesting or useful.
Link to the project: https://github.com/CogitatorTech/zigformer
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