https://developer.apple.com/documentation/accelerate/blas This runs on the AMX, so much faster than on CPU.

I've been unable to get native openblas yet through homebrew, though havent tried recently.

For deep learning inference I'm using Vulkan/moltenvk/ncnn got it to work and was able to hack around.

There's https://www.openblas.net/ I have an M1, but I've been not trying too hard to get it to work assuming that waiting will make things better soon.