DeepSeek V4.1 Flash hands-on tests and comparisons

Strata 0.2.4 runs DeepSeek V4.1-Flash on one 12GB GPU with 46–64GB RAM, keeping hot experts in memory and streaming the rest from SSD.

Qoder's personal plan offers DeepSeek-Flash (V4.1-Flash-1017) at 0x cost, free through Nov 1 midnight, with max thinking intensity and no credit deduction.

A write-up summarizes NVIDIA's DGX Spark ring-vs-switch TP4/TP8 throughput numbers on Qwen3.8-27B and adds the author's earlier DeepSeek V4.1 Flash TP4 ring results, where relaying RoCE cut decode step time and lifted concurrent output 13–18%.

A user runs unmodified V4.1 Flash weights on four 2019-era GPUs, hitting 314 tok/s peak decode on real coding work and ~200 tok/s average in coding agents.

A user is testing TensorFold patches that let sm86 and sm121 machines cooperate over RoCE, pooling RAM and VRAM to run DeepSeek V4.1 Flash.

Same prompt, harness, and reasoning effort compared across two providers: DeepSeek Platform ran 1h30m at 213 tok/s with 99.8% cache hits, OpenCode Go 1h18m at 143 tok/s with 98%.

Having run qwen3.8-flash-next locally on strata without much use, the user wants someone to get DeepSeek V4.1 Flash 1017 running locally to minimize AI spending.

Austria's ISTA lab published a non-uniform compressed build of the 763.2B model; the 248.84GB variant averages 93.54 with a claimed 100% recovery, but requires the Strata engine as llama.cpp lacks support.

The author ran seven local AI agent experiments with Qwen3.8-27B and DeepSeek-V4.1-Flash, from 16GB consumer GPUs to 512GB systems, building interactive worlds explorable in a browser.

The GSQ-RCO GGUF for DeepSeek-V4.1-Flash-1017 isn't synced to ModelScope yet, so a user downloaded it from three mirrors at once with comparable speed.

The author says Kimi K3.1 Pro may win on raw performance, but factoring in price and speed, DeepSeek V4.1 Flash 1017 is the better pick.

The author argues Opus 5.5, gpt-6.1-sol and DeepSeek-V4.1-Flash-1017 are so strong on cost and speed that newcomers like Kimi K3.1 struggle to justify switching.