NVFP4 decode kernel gets more bits and 10% faster generation at once

gharik · x · 2026-10-24

The humansand team accelerated an already highly optimized NVFP4 decode kernel while also making it more accurate — going against the usual fewer-bits-faster-but-less-accurate tradeoff by using more bits and still gaining up to 10% faster generation. It's already in use in Ampersand's RL training and Boba serving.

Related event: Humans& Speeds Up NVFP4 Decode Kernel 10% by Using More Bits(4 posts)→

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