
DeepSeek V4.1 Flash Officially Released: Native Multimodal, Outperforms V4 Pro with Lower API Prices
DeepSeek released the DeepSeek V4.1 Flash model on September 10, 2026. This model features a 552B parameter MoE architecture with a Causal-Encoder-Decoder structure, offering native multimodal visual understanding capabilities. Benchmark tests show its intelligence level surpasses V4 Pro across the board, while significantly reducing KV Cache requirements and usage costs. The official API pricing has been lowered simultaneously, and plans are in place to gradually phase out the V4 Pro model.








