DeepSeek V4.1 Flash hands-on tests and comparisons

The author says this GUI-free terminal agent turns one prompt into webpages, editable PPTX, app prototypes and infographics, and is tuned for DeepSeek-V4.1-flash-1017, though no test numbers are given.

A user shares iOS UI designs produced with DeepSeek Harness and V4.1 Flash 1017, calling the results impressive and asking for opinions.

A user relays that V4.1 Flash is very fast with capability close to Opus 5.5, and asks whether it improved for design and whether smart subagents can be built this way.

Judging finished output, the author ranks design ability as Opus 5.5 > Sonnet 5.5 > Argon > V4.1 Flash 1017 > 6.1 Sol > Astra, and notes it handles video too.