DeepSeek Extends V4 Pro API Availability, Keeping Pricing Unchanged

IT Home, September 11 news: DeepSeek announced that in response to user demand, it has decided to continue providing DeepSeek V4 Pro API services after September 14, 2026, with the billing method remaining unchanged.

As previously reported by IT Home, on September 9, DeepSeek announced that before V4.1 Pro goes live, all requests to V4 Pro would be routed to V4.1 Flash and billed at the V4.1 Flash unit price.

On September 10, DeepSeek announced again that it planned to postpone the retirement of the V4 Pro service to September 14, 2026, at 12:00 Beijing time.

IT Home attaches the model pricing:

Model deepseek-flash deepseek-v4-pro Price Input per million tokens (cache hit) Off-peak 0.02 yuan 0.15 yuan Peak hours 0.04 yuan 0.30 yuan Input per million tokens (cache miss) Off-peak 1 yuan 4.5 yuan Peak hours 2 yuan 9.0 yuan Output per million tokens Off-peak 4 yuan 13.5 yuan Peak hours 8 yuan 27.0 yuan

Yesterday (September 10), DeepSeek released the DeepSeek V4.1 Flash model. This is the smallest-sized model in its new model architecture series, featuring native multimodal visual understanding capabilities. In benchmark tests, it successfully surpassed the intelligence level of a range of flagship models, including DeepSeek V4 Pro.