SGLang vs vLLM : quel moteur de service LLM choisir en 2026
vLLM is the safer default: broadest model and hardware support, biggest ecosystem, least deployment friction. Pick SGLang when your traffic reuses prompt prefixes heavily (agents, multi-turn chat, big system prompts) or produces lots of structured JSON output — RadixAttention and jump-forward decoding win there. The performance gap is workload-dependent and shrinks with every release.












