According to DeepSeek's official announcement, the new pricing scheme for the DeepSeek-V4 series API will officially come into effect from 0:00 on August 17, 2026. The V4-Pro model will exit its testing phase and fully embrace a commercial service status. This pricing overhaul abandons the previous uniform billing approach and introduces a peak-valley pricing model. Specifically, prices during peak hours (from 9:00 to 12:00 and from 14:00 to 18:00) will be double those during off-peak hours, incentivizing users to make use of the service during less busy times.