vLLM and Ant Group open-source Humming, a quantization kernel library

AIvLLM and Ant Group open-sourced Humming, a single kernel library for quantized inference across formats, GPUs and workloads. The post reports kernel speedups of up to 5x and end-to-end MoE throughput gains of 14–43%, with benchmarks in the linked blog.

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Quantization is easy. Fast quantization kernels for every format × every GPU × every workload are not.

Today we're open-sourcing Humming with Ant Group: one kernel library for all of it — up to 5x kernel speedups, +14–43% E2E MoE throughput.

Blog + benchmarks: https://vllm.ai/blog/2026-10-21-humming

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vLLM · x.comPublished Oct 21, 12:17 AM ET · added here 12:23 AM ET

Original title: Quantization is easy. Fast quantization kernels for every format × every GPU × every workload are not.

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