DeepSeek V4.1 Flash builds a 2M-voxel medieval world in 25 minutes for $5

Marcel @marcthecreatorrOriginally posted 2026.10.17

Open original on X

first look at DeepSeek V4.1 Flash-1017 on a massive medieval voxel world. tested it through deepseek harness using the api on max reasoning with a pretty challenging prompt. > over 2 million voxels in a single file > took around 25 minutes > cost about $5 in api usage the v4.1 flash upgrade is looking good so far. I’ll see how it holds up on other tests what do you guys think, cook or nah?

This post quotes another post: x.com/deepseek_ai/status/2111375640717033777