The Local AI Desk

The State of the Sparks: GLM-5.3 and DeepSeek V4.1 Flash on Two and Three DGX Sparks

What fits in 256 GB and 384 GB, how fast it runs, how close the quants stay to full precision, and which inference engine to pick for each build.

Two Sparks run GLM-5.3-Flash at 4 bits or DeepSeek-V4.1-Flash-1017 under 3 bits, at 60 to 65 tok/s on the best builds. Three run DeepSeek’s official weights or the full GLM-5.3. Measured speeds, quality checks, engines, other hardware and what we could not verify.