llamaperf

DeepSeek V4 Flash 284B (13B active)

on NVIDIA DGX Spark · vLLM · 162,816 ctx

Tone: positiveNVIDIA hardware
Sep 7, 2026
Throughput
20.6 t/s gen · 534.9 tokens/s prompt processing (prefill)Prompt processing measures input prefill speed; it does not tell you the time to first token.
Quant
NVFP4
VRAM reported
128 GB

Summary

User reports REAP-pruned DeepSeek-V4-Flash served at 262k context on a single DGX Spark (Ascent GX10). Setup is vLLM. Prefill and generation throughput remain stable from 4K to 162K context. Benchmarks include pp and tg at various context lengths and concurrency levels.