[DeepSeek API Billing Adjustment: Weekend Unified Low-Peak Pricing] According to reports from 'Kechuangban Daily,' the DeepSeek API open platform will optimize its peak and off-peak billing rules starting at 00:00 on Sunday, August 23, 2026. After the adjustment, weekends (Saturday and Sunday) will no longer differentiate between peak and off-peak periods, and will uniformly be billed at off-peak rates. Fees incurred before the new rules take effect will still be settled according to the original billing standards. Previously, DeepSeek released an API pricing adjustment notice, adopting peak and off-peak pricing, where peak period rates were twice the off-peak rates. This resulted in the maximum price for deepseek-v4-pro outputting one million tokens during peak periods reaching 27 yuan. Peak periods were defined as Beijing Time 9:00-12:00 and 14:00-18:00 (all other times were considered off-peak).