OpenArch – PyTorch implementations of modern LLM architectures

github.com
September 14, 2026
5 min read
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Summary
Python implementations of modern open-source LLM architectures — written from scratch, one model at a time. This repository contains hand-written PyTorch implementations of the model architectures cataloged in Sebastian Raschka's LLM Architecture Gallery. Each model is implemented to the best of my knowledge from the original papers, technical reports, reference config.json files, and the excellen...
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