DeepSeek V4.1-Flash is out and overclocks V4-Pro on the agentic/coding/cyber stack. Most importantly, speed and cost thanks to RL and a new split-brain design architecture with native vision.
Prefill runs a cheap 8B encoder. Decode runs a 16B decoder. Same 552B MoE, 4× smaller memory, native vision. Trails V4-Pro on trivia/knowledge.