Zyphra released ZYFA, open-source FP8 and BF16 prefill attention kernels for AMD Instinct MI355X. On real model activations, its FP8 kernels run 1.16-1.76x faster than AMD’s AITER, with 62-78% lower error at head dimens…
Open-weights releases pressure closed pricing and widen access, changing the build-vs-buy math for the whole ecosystem.
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