DeepSeek formally launches V4.1 Flash, routes V4 Pro requests to Flash

10 formally released its V4.1 Flash model and introduced new Flash-series pricing, according to a notification sent to API users. DeepSeek said that V4.1 Flash had surpassed V4 Pro in performance, cost, speed and total completion time in internal and external testing. 14 at noon Beijing time, requests to V4 Pro will be routed to V4.1 Flash and billed at Flash-series rates.