Generative AI is a new phenomenon, so many citation styles lack specific guidelines on how to cite content created by an AI tool like ChatGPT. Since content from generative AI cannot be retrieved or linked to, it is recommended that the content be referenced as personal communications or correspondence, unless the citation style has specific guidelines.
Guidance for citing AI-generated text from MLA, APA and Chicago Manual of Style are below:
MLA: How do I cite generative AI in MLA Style?
APA Style: How to cite ChatGPT