DeepSeek announced Flash API price reductions effective September 10, noon Beijing time, with cache-hit pricing falling by up to 60%.

Financial_Express relays a DeepSeek Open Platform announcement that revised Flash-series application programming interface, or API, pricing begins at noon Beijing time on September 10, 2026 (将于北京时间 2026 年 9 月 10 日 12:00 起，调整 flash 系列定价). The maximum reported reductions are 60% for cache hits, 33.33% for cache misses, and 11.11% for output (缓存命中、缓存未命中及输出价格最高降幅分别为 60%、33.33%和 11.11%).

The quoted off-peak prices are RMB 0.02 for input cache hits, RMB 1 for input cache misses, and RMB 4 for output (空闲时段输入缓存命中单价 0.02 元、输入缓存未命中单价 1 元，输出单价 4 元). Crucially, the supplied message does not identify the billing denominator, so these figures cannot safely be labeled as prices per million tokens or per request.

Peak-period pricing is twice off-peak pricing (高峰时段价格为空闲时段价格的 2 倍). Peak periods are Monday through Friday, 9:00–12:00 and 14:00–18:00 Beijing time, with all other times designated off-peak (高峰时段是指北京时间周一至周五 9:00-12:00、14:00-18:00（其余为空闲时段）).