When using a fact/quote/claim/summary or data from a source, you need to cite the original source from where it came--no matter where you found it. This remains true for the output of generative AI tools. You need to trace the content back to its original source. If the original source cannot be found, it raises a question about whether it really exists.
There may be times, however, when you need to cite generative AI.
When using information from a generative AI tool in your academic work:
MLA: Current guidance is to not cite an AI tool as an author, but to use the Title of Container element to name the AI tool. See How do I cite generative AI in MLA style?.
APA: Current guidance is to cite the AI tool as an author in in-text citations and references. See APA's How to cite ChatGPT.
Chicago: Current guidance is to cite the AI tool as the author. “ChatGPT stands in as ‘author’ of the content, and OpenAI (the company that developed ChatGPT) is the publisher or sponsor, followed by the date the text was generated.” See Chicago's Citation, Documentation of Sources FAQ.
For other styles, check with your professor or Ask Us.