DeepSeekLaunchAI ModelsSeptember 10, 2026

DeepSeek releases V4.1-Flash with novel YOCO decoder-decoder architecture

DeepSeek-V4.1-Flash packs 552B backbone parameters, native image and text input, and up to a 1M-token context window. Off-peak cached-input pricing is $0.003 per 1M tokens; one benchmark put it at 98% of GPT-6 Astra's score at 1.4% of the cost.

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