To improve the service quality and efficiency of the on-campus GPT and DeepSeek services, The Hong Kong University of Science and Technology (Guangzhou) will upgrade the GPT and DeepSeek service system on May 9, 2026.
I. GPT API adds the gpt-5.3-chat model
How to use gpt-5.3-chat: API mode (users who already have an AIGC API key can use it directly)
Launch date of gpt-5.3-chat: May 9, 2026
Pricing for gpt-5.3-chat:
| Model | Input Price (RMB/1K tokens) | Output Price (RMB/1K tokens) |
| gpt-5.3-chat | 0.013599398 | 0.108795186 |
II. DeepSeek upgrades to DeepSeek-V4-Pro and DeepSeek-V4-Flash
How to use DeepSeek-V4-Pro and DeepSeek-V4-Flash: Dialog model and API mode (users who already have an AIGC API key can use it directly)
Launch date of DeepSeek-V4-Pro and DeepSeek-V4-Flash: May 9, 2026
Retirement date of DeepSeek-R1: May 31, 2026
Pricing for DeepSeek-V4-Pro and DeepSeek-V4-Flash (fees begin on June 1, 2026)
| Model | Input Price (RMB/1K tokens) | Output Price (RMB/1K tokens) |
| DeepSeek API | 0.001 | 0.0015 |
AIGC API Application Method：
Application channel: DingTalk – "AIGC Application"
Purpose: Research and Education
Billing method: Pay after use. Usage fees will be settled via PBMS the following month.
API request demo: See attachment “GPT and DeepSeek API Python Request Demo”.
If any questions or suggestions, please contact(020) 8833 0101 or gzit@hkust-gz.edu.cn
Information Technology and Data Intelligence Department (ITDID)
May 8, 2026