LLM Inference Benchmark Explorer

Kimi-K3.1-Pro on DGX B300 — MXFP4, SGLang, TP8, speculative decoding k=8 inference benchmark

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ModelKimi-K3.1-Pro
Parameters2.78T
Intelligence Index—
Agentic Index—
DeviceDGX B300
QuantizationMXFP4
Max C16
Chat Capacity64
Agentic Capacity24
TP8
DP—
PP—
EngineSGLang
Speculative DecodingYes
CTTFT (ms)TPS (tok/s)Status
1379176.03PASS
2403114.49PASS
455370.71PASS
859644.91PASS
1672727.57PASS
32136535.40FAIL
64508118.11FAIL
128125199.55FAIL

In OpenZeka's measurement, Kimi-K3.1-Pro (2.78T parameters), served in MXFP4 format with SGLang and speculative decoding on DGX B300 (TP=8), reached a generation speed of 176 tok/s per request and a time to first token (TTFT) of 379 ms with a single request.

Considering the speed targets and the available KV cache capacity, the estimated capacity is 64 users for chat use and 24 for agentic use. The realistic capacity will likely fall between these two values. In scenarios dominated by coding, tool use, long workflows and multi-agent use, capacity approaches the agentic estimate; where shorter interactions, standard conversations and lighter tasks dominate, it approaches the chat estimate.

Notes: DFlash2 k=8, 1M context. Multimodal checkpoint measured on text. Model: moonshotai/Kimi-K3.1-Pro

Intelligence Index and Agentic Index values are published by Artificial Analysis and are reproduced here with attribution.