Pattern: Author. (date). Name of large language model (Version of model). {Large language model]. URL.
Paraphrase:
When prompted with the question of why TikTok users are concerned with data privacy, the ChatGPT-generated text provided four grounds, all related to TikTok's collection of large amounts of user data which could be misused by the Chinese government or other third parties (OpenAI, 2023).
Reference: Open AI (2023). ChatGPT (May 24 version). [Large language model]. https://chat.openai.com/chat
For more information about citing AI large language models, visit this entry in the APA Style Blog: How to cite ChatGPT (apa.org)