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Builds / 4x Nvidia GB10 (unified, DGX Spark)

4x DGX Spark: DeepSeek V4.1 Flash (1017) FP8 on TensorFold Zig, 65.8 tok/s (Mia's AI Lab recipe)

Source: mia-ai.net ↗More source: mia-ai.net ↗More source: github.com ↗📏 How measured: reported by the original source; RigBase re-checked the numbers at that source
GPU(s)
4x Nvidia GB10 (unified, DGX Spark)
VRAM / unified memory (GB)
512
CPU
Nvidia GB10 Grace (Arm) per node
Amazon · eBay (used) · Newegg
Motherboard
not stated
RAM
128 GB LPDDR5X unified per Spark (512 GB total)
PSU
not stated
Other
4 NVIDIA DGX Sparks, multi-node
Reported total cost
not stated
Power
not stated

Measured speed (generation tokens/sec)

ModelQuantEnginetok/sPrompt processing (tok/s)Details
DeepSeek V4.1 Flash1017 checkpoint, FP8 + MXFP4 + DSparkTensorFold Zig, 4 nodes, 1 stream65.84,127 @ 32k-token prompt
est. TTFT @8k ≈ 2.0 s (calculated from measured prefill)		⚡ spec-decode (DSpark)context: 1M · up to 16 at once📏 Single-stream decode as published on Mia's AI Lab recipe card (Decode speed, one stream). Peak throughput 165.3 tok/s ×8 streams.

Prompt processing = prefill speed (how fast the prompt is read) as reported by the source, with the prompt length it was measured at; blank = the source does not report it. est. TTFT @8k is calculated from the measured prefill speed (8,192 ÷ prefill tok/s), shown only when prefill was measured on a prompt of 512+ tokens. It is not a measurement and ignores load time and caching. measured TTFT is the source's own time-to-first-token. Why prefill matters for coding assistants.

Recipe and numbers by Mia's AI Lab (mia-ai.net), recipe last updated 2026-10-25; RigBase read the recipe card on 2026-10-27 and checked the decode figure against the recipe page. RigBase did not re-run it. Prefill is prompt-processing speed on a 32k prompt where listed.

Source: https://mia-ai.net/models/DeepSeek-V4.1-Flash-1017-4x-DGX-Sparks-TensorFold
https://mia-ai.net/models
https://github.com/MiaAI-Lab/DeepSeek-V4.1-Flash-1017-4x-DGX-Sparks-TensorFold

Blank fields = not stated in the source. We never estimate build data; GPU street prices above are separately sourced and dated.

Rent before you buy: try this model on a cloud GPU for a few dollars first: Runpod (referral link; sign up with Google to get the new-user bonus)

Quick answers: Can 4x DGX Spark (GB10) run DeepSeek V4.1 Flash?