While the 9th edition of the MLA Handbook does not currently reference AI or LLMs, MLA (Modern Language Association) has produced recommendations on how to cite AI-generated content through a blog post on MLA Style Center. While they recommend that you "cite a generative AI tool whenever you paraphrase, quote, or incorporate into your own work any content (whether text, image, data, or other) that was created by it", they do note that they encourage flexibility in applying these principles through the MLA template of core elements (MLA Style Center).
Reference: "Text of prompt" prompt. Software, Day/Month version, Author/Owner, Day/Month/Year, URL.
In-Text Citation: ("Text of prompt")
While the green light in The Great Gatsby might be said to chiefly symbolize four main things: optimism, the unattainability of the American dream, greed, and covetousness ("Describe the symbolism"), arguably the most important--the one that ties all four themes together--is greed.
"Describe the symbolism of the green light in the book The Great Gatsby by F. Scott Fitzgerald" prompt. ChatGPT, 13 Feb. version, OpenAI, 8 Mar. 2023, https://chat.openai.com/chat
When asked to describe the symbolism of the green light in The Great Gatsby, ChatGPT provided a summary about optimism, the unattainability of the American dream, greed, and covetousness. However, when further prompted to cite the source on which that summary was based, it noted that it lacked "the ability to conduct research or cite sources independently" but that it could "provide a list of scholarly sources related to the symbolism of the green light in The Great Gatsby" ("In 200 words").
"In 200 words, describe the symbolism of the green light in the book The Great Gatsby" follow-up prompt to list sources. ChatGPT, 13 Feb. version, OpenAI, 9 Mar. 2023, https://chat.openai.com/chat