Abstract:
On September 9,
DeepSeek open platform issued a notice that it plans to officially release the V4.1 Flash model around September 10, 2026, Beijing time.
According to the official introduction, after internal and external testing,V4.1 Flash has completely surpassed V4 Pro
in terms of performance, cost, speed, total time and other indicators.

Yesterday, DeepSeek has started internal testing of the V4.1 Flash intermediate version in the official communication group. According to feedback from users who participated in the internal testing, the new model adopts a new model structure, natively supports multi-modality, has stronger capabilities, faster speed, and lower cost.

DeepSeek official stated
that with the attitude of being responsible to users, after V4.1 Flash is officially launched and before V4.1 Pro is launched, all requests for V4 Pro will be routed to V4.1 Flash, and is billed according to the unit price of V4.1 Flash. This means that users can experience model services with performance exceeding V4 Pro at a lower price before the official release of V4.1 Pro.
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