vLLM Adds FlashInfer MoE Expert Backend for DeepSeek-V4
August 24, 2026
vLLM has integrated an opt-in FlashInfer MoE expert backend to support DeepSeek-V4. This addition improves inference performance for Mixture-of-Experts architectures within the runtime.
HOW THIS AFFECTS YOU
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builderYou can achieve faster inference for DeepSeek-V4 models using the new FlashInfer backend.
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researcherThis provides a standardized runtime for testing MoE performance optimizations.