[tehf0x]

Indeed! Sorry, I was thinking more about the layers but of course JAX is way more than numpy on steroids. (Although it is also that: https://dionhaefner.github.io/2021/12/supercharged-high-reso...). JAX has a very nice vmap for easy parallelization on SIMD accelerators, and pmap even allows cross-device vectorization with a single line which is just beautiful !