DeepSeek V4-Pro API 2.5 Discount Extended to May 31

According to Omdena Beating monitoring, DeepSeek has extended the deadline for the 2.5x discount on the V4-Pro API from the original May 5 at 23:59 Beijing time to May 31 at 23:59, with no change in discount amount or price. Post-discount price per million tokens: cache hit $0.03625, cache miss $0.435, output $0.87.