Last night I received an official email from DeepSeek, which read:
After extensive internal and external testing, V4.1 Flash has comprehensively surpassed V4 Pro across all metrics — performance, cost, speed, total time, and more. In keeping with our commitment to being responsible to our users, after V4.1 Flash is officially launched and before V4.1 Pro goes live, we will route all requests for V4 Pro to V4.1 Flash and bill them at the V4.1 Flash rate. The new pricing will take effect at 12:00 Beijing Time on September 10, 2026.
It completely blindsided me — you can actually do that? If I didn't know better, I'd think this was a relay station, haha.
Price-wise, it's basically getting Pro at Flash's price. Until the next Pro version comes out, DeepSeek now effectively has only one model — V4.1 Flash.