SGLang adds day-one Kimi K3 support and reports 423 tokens/s on GSM8K
BanghuaZ · x · 2026-07-28
SGLang announced day-0 support for Kimi K3, claiming a speed of 423 tokens/s on GSM8K and saying RL support is ready.
- The post describes K3 as a 2.8T-parameter open model with a 1M context window.
- SGLang says it natively implemented and deeply optimized K3’s architecture with fused KDA decode kernels, DP attention, DSpark, PD disaggregation, and KDA-aware prefix caching.
- It reports production readiness after passing the Kimi Vendor Verifier.
- The stack is said to run across NVIDIA GB300/B300/B200/H200/H20, AMD MI350X/MI355X, and more.
- The launch video was also generated by K3 itself and turned into a playable mini game.
Related event: SGLang Day-0 Support for Kimi K3 Boosts Throughput to 423 tok/s(8 posts)→
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