Why DeepSeek-V4.1-Flash Is Such an Exciting Open Model Release

DeepSeek-V4.1-Flash shows how Causal Encoder-Decoder architecture, MoE, KV cache compression, CSA2, cheaper prefill, and efficient decoding can make powerful open-source AI models far more efficient to run.

Source: KDnuggets — Published September 14, 2026 at 12:00 UTC — Category: Open Source