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vLLM open-sources Humming with Ant Group for fast quantization kernels
- Who
- vLLM and Ant Group
- What
- open-source Humming, a quantization kernel library for different formats, GPUs, and workloads
- When
What happened
Quantization is easy. Fast quantization kernels for every format × every GPU × every workload are not. Today vLLM is open-sourcing Humming with Ant Group, one kernel library for all of it, reporting up to 5x kernel speedups and +14–43% E2E MoE throughput. Blog + benchmarks: https://vllm.ai/blog/2026-10-21-humming
The story so far
vLLM and Ant Group have open-sourced Humming, a quantization kernel library designed to support different quantization formats, GPUs and workloads. vLLM reported kernel speedups of up to 5x and a 14–43% increase in end-to-end mixture-of-experts (MoE) throughput.
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