Wrote a deep dive on implementing a language model from scratch in JAX and scaling it with distributed training!

If you’re coming from PyTorch and want to see how the same ideas look in JAX, or just want a hands-on intro to distributed training, check out this blog post: https://chuyishang.com/blog/2026/jax- lm/

Comes with code + an assignment and test cases so you can follow along!