DeepSeek unveils V4.1-Flash: new encoder-decoder architecture with native vision

gaganghotra_ · x · 2026-09-11

DeepSeek officially introduced DeepSeek-V4.1-Flash, the smallest model in its new architecture family, with native visual understanding built in. The release marks a major overhaul of the V4.1 line around an encoder-decoder setup, aimed at higher capability, faster inference, and greater throughput — designed as a foundation that scales to larger models.

Researcher Sebastian Raschka (rasbt) called it a big overhaul so substantial that "they should have called it DeepSeek V5," praising the return of the encoder-decoder design as refreshing. Detailed benchmarks and technical specifics are expected in the follow-up posts of the official thread.

Related event: DeepSeek Releases Open-Source V4.1 Flash: 552B MoE Undercuts and Outperforms Flagships(55 posts)→

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