DeepSeek V4.1 Flash hands-on tests and comparisons

Strata added GSQ-RCO quantization support so DeepSeek V4.1-Flash can run locally on PCs with 64GB RAM and a 12GB+ GPU; speed is still limited but data stays on-device.

Strata testing reports IQ2_XXS quantization raises perplexity 15.5% over the base model, runs about 8–10 tok/s on an RTX 3060 12GB with 46GB RAM, and llama.cpp does not support it yet.

A user reports Strata now supports DeepSeek-V4.1-Flash-1017, letting 12GB VRAM plus 64GB DDR5 run all GSQ-RSO quants with Engram on SSD, with Maya comparisons coming.

An early comparison finds Qwen3.8-Flash-Next fast but prone to confident errors with long answers, while V4.1 Flash is slower yet cautious and concise, with little difference on simple tasks.

On an i7-14700 + RTX 5090 with 128GB RAM, the IQ2_XXS quant at 128K context and reasoning effort off ran at ~14 tok/s and finished a Minecraft-style 3D sandbox game prompt in 2h01m; quality is modest but a 763B model running on one GPU is the point.

Local testing of DeepSeek V4.1 Flash 1017 on two Radeon AI R9700 GPUs with 128GB DDR5 via Strata produced speeds the author calls impractical.

A Japanese user says the DeepSeek V4.1 Flash 1017 weight download started in the daytime and still hasn't finished, noting local LLMs are costly.

The author compares Mac unified memory with single-GPU setups and lists current local-LLM hotspots, including DeepSeek V4.1-1017, debating how usable IQ1–IQ4 quantizations are.

A roundup says DeepSeek shipped V4.1-Flash-1017 weights under MIT, open-sourced its DeepInfer serving engine, and is reportedly raising about $15B.

The release ships IQ1_M at 239GB, IQ2_XXS at 257GB and IQ2_XS at 274GB quantized weights, published on Hugging Face.

A ranking of coding setups puts Claude Code + Opus 5.5 best overall and Codex + DeepSeek-V4.1-Flash at one-twentieth the cost.

On an independent Bug Hunt benchmark counting only targeted fixes across 105 planted bugs in two production repos, V4.1 Flash 1017 scored 42.7 at $1–2, versus Kimi K3.1 Pro's 36 at nearly $14.