There no definitive way to cite the use of Gen AI tools. I know some faculty want to see the Prompt and the iterative process and some want student to acknowledge the use of the tool. The issue, any one session cannot be recreated since each use provides different responses. So I think context of assignment/research decide the citation. How much of the citation will help you as an faculty member and how much will help a student later when she may want to create something similar?
For example a student used it to create survey questions, not citing an article, so the faculty member can decide how much info for the prompt you want. It could be only the initial prompt for the session OR the prompt with a brief explanation (this option reminds me of a humanities paper footnote citation).
The first citation is from APA, the second and third are new ideas of citing.
APA version.
Idea #1 - Tool name and version (YYYY, MM DD). Prompt. Company name, Prompt/Conversation URL.
Idea #2 Tool name and version (YYYY, MM DD). Prompt with explanation. Company name, Prompt/Conversation URL.