LLM Inference Benchmark Explorer

Inkling on 8× DGX Spark — NVFP4, vLLM, TP8, speculative decoding k=1 inference benchmark

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ModelInkling
Parameters952B
Intelligence Index25
Agentic Index22.5
Device8× DGX Spark
QuantizationNVFP4
Max C2
Chat Capacity8
Agentic Capacity3
TP8
DP—
PP—
EnginevLLM
Speculative DecodingYes
CTTFT (ms)TPS (tok/s)Status
141227.28PASS
255720.99PASS
477815.49FAIL
886198.03FAIL

In OpenZeka's measurement, Inkling (952B parameters), served in NVFP4 format with vLLM and speculative decoding on 8× DGX Spark (TP=8), reached a generation speed of 27.3 tok/s per request and a time to first token (TTFT) of 412 ms with a single request.

Considering the speed targets and the available KV cache capacity, the estimated capacity is 8 users for chat use and 3 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: Model: thinkingmachines/Inkling-NVFP4 (975B MoE, 552 GB). GMU 0.80, MoE FLASHINFER_CUTLASS

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