How to Cite ChatGPT in MLA, APA and Chicago Style
Knowing how to cite ChatGPT is now part of basic research literacy. The three major style guides have each published a format, and they disagree on small but gradable details: whether the tool counts as an author, where the prompt goes, and what kind of link belongs at the end. This guide reproduces each format from the official page, works one literature example through all three, and answers the harder question underneath: when a citation is the right instrument and when a disclosure statement is.
The example running through every section is the same: a student preparing an essay on The Great Gatsby asks a chatbot what the green light at the end of Daisy's dock symbolizes, then uses part of the answer to frame a counterargument. That is a citable use. Submitting the answer as your own paragraph is a different act, and the citation is what separates the two.
In short: Cite ChatGPT whenever you quote, paraphrase or borrow an idea from its output. MLA puts the prompt in the title slot and never lists the tool as author; APA lists OpenAI as author with the chat title in italics; Chicago uses a numbered note beginning "ChatGPT, response to" the prompt. All three want a shareable link.
When you need a citation and when you need a disclosure
A citation points a reader to a specific source so they can check it. A disclosure describes how a tool touched your process. The MLA Style Center draws exactly this line in its August 2025 post on describing AI use: citation covers content you quote or paraphrase, while "acknowledgment of the use of AI is slightly different from, and more comprehensive than, citation." If you asked for a list of possible essay angles and then wrote every sentence yourself, you owe an acknowledgment, not a works-cited entry. If you lifted a phrase or an interpretation, you owe both.
Purdue University Libraries makes the same point in its citation guide: "citation and disclosure are not always the same thing," and an instructor may ask for an explanation of AI use even where no formal citation is required. The formats below handle the first; our guide to writing an AI disclosure statement for essays handles the second.
How to cite ChatGPT in MLA style
MLA uses its template of core elements rather than a special rule for chatbots. The tool is never the author. Since the 2025 update, the Version element names the specific model, and the Location element is the stable, shareable link to the conversation (the Share button in the chat window), with the general tool URL as a fallback.
The prompt, in quotation marks and followed by the word "prompt," fills the Title of Source slot. The tool name is italicized as the container. The company is the publisher, and the date is the day the text was generated. Applied to the Gatsby question:
"What does the green light symbolize in The Great Gatsby?" prompt. ChatGPT, model GPT-4o, OpenAI, 12 Sept. 2026, chatgpt.com/share/your-unique-link.
Replace the model name with whichever version you actually used; MLA's own examples cite GPT-4o because that is what its editors ran. The in-text citation is a shortened form of the prompt: ("What does the green light"). Because MLA treats the prompt as a description rather than a title, it keeps sentence-style capitalization.
How to cite ChatGPT in APA style
APA takes the opposite view on authorship: the company that built the tool is the author, so OpenAI sits first. The APA Style blog updated its guidance in September 2025 to distinguish citing a specific chat from citing the tool in general, a change reproduced on Purdue University Libraries' citation page. For a specific conversation, the chat title goes in italics with a bracketed description, followed by the tool name and the shareable link:
OpenAI. (2026, September 12). Green light symbolism in The Great Gatsby [Generative AI chat]. ChatGPT. https://chatgpt.com/share/your-unique-link
The in-text citation is (OpenAI, 2026), or OpenAI (2026) in a signal phrase. To refer to the tool itself rather than to something it said, use the general form: OpenAI. (2026). ChatGPT [Large language model]. https://chatgpt.com/.
APA also suggests attaching the full transcript as an appendix when the exchange matters to the argument.
Chicago style AI citation
The Chicago Manual of Style, in its Q&A on AI-generated content, says you must credit the tool whenever you use text it generated, but that for most writing "you can simply name the AI tool in your text." For a student paper that needs a formal citation, Chicago recommends a numbered note and gives two shapes. When the prompt is already stated in your sentence:
1. Text generated by ChatGPT, OpenAI, September 12, 2026, chatgpt.com/share/your-unique-link.
When the prompt has not appeared in the text, it goes into the note:
1. ChatGPT, response to "What does the green light symbolize in The Great Gatsby?," OpenAI, September 12, 2026, chatgpt.com/share/your-unique-link.
One more Chicago rule: if you edited the generated text, say so, either in your prose or at the end of the note ("edited for style and content"). Chicago does not ask for a bibliography entry, because a chat is treated like a personal communication rather than a published work.
| Element | MLA (9th ed., 2025 update) | APA (7th ed., 2025 update) | Chicago (18th ed.) |
|---|---|---|---|
| Author position | None; tool is not an author | OpenAI (the company) | None; tool named in note |
| Where the prompt goes | Title of Source, in quotation marks, followed by "prompt" | Not required; chat title in italics instead | Inside the note after "response to" |
| Tool and version | ChatGPT, model GPT-4o | ChatGPT, after the bracketed description | ChatGPT, then OpenAI |
| Date | Day month year generated (12 Sept. 2026) | (2026, September 12) | September 12, 2026 |
| Link | Shareable chat URL; general URL if none | Shareable chat URL | Shareable chat URL |
| In-text form | ("What does the green light") | (OpenAI, 2026) | Superscript note number |
| Editing disclosure | Acknowledge functional uses in a note or the text | Describe use in text, method or appendix | State "edited for style and content" in the note |
Why you cite a tool you consulted but never submit its text as yours
The formats above all assume the same thing: the generated text is a source you are responding to, in the way you would respond to a critic. A chatbot will tell you the green light stands for hope, the American Dream and the unreachable past, all at once and in no particular order. It is a list rather than a reading. Your essay begins where the list ends, with the sentence in chapter 9 where Nick calls the light "the orgastic future that year by year recedes before us," and with the question of why Fitzgerald ends on a rowing metaphor rather than on Gatsby at all.
Cited, the machine summary becomes a foil. Pasted in and unmarked, it becomes your claim, and a weak one, because the tool has no position and quotes nothing. Our study guide to The Great Gatsby lays out the evidence a real reading needs, and the restored essay on why Daisy stays with Tom shows what it looks like to argue one side of a question the novel leaves open. Both depend on choosing which lines matter and saying why.
There is also a factual hazard. The MLA guidance warns that AI tools "can also hallucinate, or make up, sources." Commenters on MLA's original 2023 post reported that the scholarly citations the tool offered for green-light symbolism did not exist. If a tool points you to a critic, find the critic and cite the critic.
How citing protects you
A citation is a timestamped, linked record of exactly what you took and when. If a detector flags a paragraph, or an instructor asks where an idea came from, the works-cited entry answers the question before it is asked. It also fixes the boundary: everything outside the cited material is yours, and your drafts can show it. That is the logic our piece on academic integrity and AI applies to detection scores generally: an honest record beats a probability estimate.
The reverse holds too. An uncited paragraph that a reader recognizes as generated has no defense left, because the omission reads as concealment even when the cause was haste. If your assignment permits consulting a tool for background, our guide to using AI to study literature without outsourcing the reading covers which uses are worth citing, and the site's citation generator handles the rest of the bibliography. The wider set of guides on authorship and integrity starts from one premise: the essay is yours when the thinking is yours, and every borrowed sentence is labeled.
Frequently asked questions
Do I need to cite ChatGPT if I only used it to brainstorm?
Not with a works-cited entry, unless you took wording or a specific idea from the output. MLA asks you to acknowledge "functional uses" such as brainstorming or editing in a note or in your text, and many instructors want a short disclosure statement regardless.
Which link do I use if the tool has no share button?
MLA says to use the general URL for the tool when no stable link exists. APA and Chicago assume a shareable link; if you cannot produce one, save the transcript as a PDF and offer it as an appendix.
Is ChatGPT the author in APA style?
No. In APA the company that made the tool, OpenAI, is the author, so the in-text citation reads (OpenAI, 2026). MLA and Chicago do not assign an author; MLA puts the prompt in the title position, and Chicago names the tool inside a note.
Can I cite a source that ChatGPT recommended?
Only after you have opened and read it yourself. The MLA Style Center and Purdue Libraries both tell writers to click through and cite the original directly, because generated citations are sometimes invented.
How to cite ChatGPT: the rule that covers every case
Whatever style you are writing in, the rule on how to cite ChatGPT is the rule for any source: if the words or the idea came from somewhere else, say where, say when, and give the reader a way to see it. MLA wants the prompt and the model; APA wants the company and the chat title; Chicago wants a note and an honest word about editing. Get the format right, keep the link, and let the rest of the essay be visibly yours.
The essays and guides on this site are study companions for building your own reading, and none of them is submission-ready coursework.
Sources
- MLA Style Center, "How do I cite generative AI in MLA style? (Updated and Revised)": the MLA template, the no-author rule, the model-in-Version change and the shareable-link preference
- MLA Style Center, "Beyond Citation: Describing AI Use in Your Work": the distinction between citing AI output and acknowledging substantive use
- The Chicago Manual of Style Online, Q&A on citing content generated by artificial intelligence: the two note formats and the "edited for style and content" rule
- Purdue University Libraries, "How to Cite AI Generated Content": the September 2025 APA formats for a specific chat and for the tool in general, and the citation-versus-disclosure distinction