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How to Cite ChatGPT and Other AI Tools

Cite the company, the date, and either the shared chat or the tool itself—never list the model as a human author. This page follows the APA Style September 2025 reference formats plus Part 2 and Part 3, the MLA Style Center August 2025 generative-AI update and AI Overviews note, and the Chicago Manual of Style AI Q&A (notes dated 10 January 2026) plus CMOS 18 §14.112. It is the cross-style overview. One-style pages are ChatGPT in APA, ChatGPT in MLA, and ChatGPT in Chicago. Ethics live in how to avoid plagiarism.

By 20 min read

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Photo: Jez Timms, Wikimedia Commons (CC0)
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How to Cite ChatGPT and AI Tools: Quick Answer

If readers can open the conversation, cite that chat. If they cannot, APA cites the tool as software and describes the use in the text; MLA still starts with a description of the prompt; Chicago credits the tool in the text or a note and adds a bibliography line only when a public URL exists. Record the company, the generation date, the chat title or prompt, the model when the tool shows one, and a public share URL when one exists. Citation is not permission: if the syllabus bans AI, do not use it.

Templates (replace the slot words; keep the punctuation)

APA 7 shared chat:

AI Company. (Year, Month Day). Title of the shared chat [Generative AI chat]. Tool or model. URL

APA 7 tool in general:

AI Company. (Year). Tool or Model [Large language model]. URL

APA in-text:

(AI Company, Year) or AI Company (Year)

MLA 9 works cited:

"Text of your prompt" prompt. ChatGPT, model or version, Publisher, Day Month Year, URL.

MLA in-text:

("Shortened prompt")

Chicago 18 note (Q&A, 10 January 2026):

1. Text generated by ChatGPT, OpenAI, January 10, 2026, URL.

Chicago 18 note with prompt:

1. ChatGPT, response to “Explain how to make pizza dough from common household ingredients,” OpenAI, January 10, 2026, URL.

Do not list ChatGPT, Claude, or Gemini as a human author in APA or MLA. Do not paste a private chat URL that requires your login. Do not copy the 2023 APA line that put (Mar 14 version) after ChatGPT—APA withdrew that default in 2025. Do not treat an AI summary, a Google AI Overview, or a hallucinated citation as a source for a book or article you never opened. A filled-in form lives on the ChatGPT & AI citation generator.

What This Guide Covers (and What It Does Not)

This is a source-type guide for text, images, and code generated by a chatbot or image model. It compares the three styles students are usually assigned and flags the journal-authorship rule that a course paper does not cancel. It is not a software manual, a permission slip, or a substitute for the one-style pages.

Cite the Chat, Cite the Tool, Disclose, or Cite Nothing?

APA’s 2025 update exists because chats are now shareable. In 2023 the APA Style team treated ChatGPT as unretrievable software. The September 9, 2025 post by Timothy McAdoo, Samantha Denneny, and Chelsea Lee changed that: a public share link plus a chat title is a normal author–date–title–source reference. MLA already wanted a description of the prompt; the August 13, 2025 revision now prefers a stable share URL and a model name such as GPT-4o. Chicago 18 §14.112 still treats most chatbot output like a personal communication: credit it where it appears; add a bibliography line only when a public URL exists. A Google AI Overview is a different case: MLA says it is search results, not a work.

Cite a specific chat when you…

  • Quoted or paraphrased a generated passage
  • Can give readers a public share URL
  • Want someone to see the exact prompts and replies
  • Used one conversation as part of a method you are reporting

Cite the tool, disclose only, or cite nothing when you…

  • Used AI to edit, translate, or tidy your own draft (cite the tool; disclose)
  • Used Copilot or similar AI inside Word the way you use spell-check (APA Part 2: usually no reference)
  • Clicked through a Google AI Overview and cited the linked page (MLA: do not cite the Overview)
  • Cannot share the chat without exposing private data

APA Style, 9 September 2025

AI itself cannot be an author because it is not a living, conscious human who can give consent and promise to abide by the rights and responsibilities that come with authorship.
Include a reference and in-text citation for a specific AI chat foremostly when doing so will be helpful for readers.

APA 7th Edition (September 2025 Guidance)

APA 7 still uses the four reference elements in Publication Manual Chapter 9. For a shared chat the author is the company (OpenAI, Anthropic, Google, Perplexity AI), the date is the day the chat occurred or ended, the title is the chat title in italic sentence case plus a bracketed description, and the source is the tool or model name plus the share URL. The software template in §10.10 is what you use when you cite the tool as a whole. The current instructional pages are Citing generative AI in APA Style: Part 1, Part 2, Part 3, and AI references. The 2023 How to cite ChatGPT post is historical.

Official APA template

APA Style blog, 9 September 2025

AI Company Name. (year, month day). Title of chat in italics [Description, such as Generative AI chat]. Tool Name/Model. URL of the chat
AI Company Name. (year). Tool Name/Model in Italics and Title Case [Description; e.g., Large language model]. URL of the tool

Official APA shared-chat examples

To write those examples, the APA Style team asked four tools for grammar topics a student should know by the end of high school. The prompt they reported was “I’d like a list of grammar topics that a student should understand by the time they graduate from high school.” Use these lines as published. Do not invent a share URL.

APA Style, 9 September 2025 — specific chats

ChatGPT:

OpenAI. (2025, August 21). High school grammar concepts [Generative AI chat]. ChatGPT. https://chatgpt.com/share/68a77b60-0ee4-800c-9acc-cd3fd573c311

Claude:

Anthropic. (2025, May 20). Essential grammar topics for high school graduates [Generative AI chat]. Claude Sonnet 4. https://claude.ai/share/329173b2-ec93-4663-ac68-4f65ea4f166d

Gemini:

Google. (2025, May 22). High school grammar concepts overview [Generative AI chat]. Gemini 2.5 Flash. https://g.co/gemini/share/a1306ce12929

Perplexity:

Perplexity AI. (2025, May 20). High school grammar topics [Generative AI chat]. Perplexity. https://www.perplexity.ai/search/a457cb8c-c663-4c9b-b34e-cb03d8108b35

Parenthetical citations:

(Anthropic, 2025; Google, 2025; OpenAI, 2025; Perplexity AI, 2025)

Narrative citations:

Anthropic (2025), Google (2025), OpenAI (2025), and Perplexity AI (2025)

Official APA general-tool examples

Cite the tool as a whole when a specific chat would be unhelpful, unethical, or private—for example after you used AI to edit your own sentences, or when listing every participant chat would break confidentiality. The date is the year the tool was last updated, not the day you opened it. APA’s September 2025 post says ChatGPT had last been updated in August 2025, so that reference uses 2025.

APA Style, 9 September 2025 — tools in general

Anthropic. (2025). Claude 4 Sonnet [Large language model]. https://claude.ai/new

Google. (2025). Gemini 2.5 Flash [Large language model]. https://gemini.google.com

OpenAI. (2025). ChatGPT [Large language model]. https://chatgpt.com/

Perplexity AI. (2025). Perplexity [Large language model]. https://www.perplexity.ai/

APA in-text sentences from the same post

I used Claude 3.7 Sonnet (Anthropic, 2025), a generative artificial intelligence (AI) tool, to generate a list of grammatical concepts that high school students should know by the end of the 12th grade.
I used ChatGPT (OpenAI, 2025) to edit my paper and provide feedback on clarity and flow.

Prompts belong in the Method, not the reference

APA’s 2025 post separates the chat title (a reference element you may edit inside the tool) from the prompt trail (what you asked, then refined). Keep the full prompt history in your notes. Put a useful prompt in the Method, an appendix, or a supplement. Do not try to squeeze it into the four reference elements.

APA Style, 9 September 2025 — prompts

Thus, when deemed useful for readers, prompts can be described in the text, but they are not included in the reference.
I provided the following prompt to Gemini (Google, 2025): “Please create an image of students in a classroom studying grammar concepts.” After reviewing the initial image created, I refined the images by adding more detail, asking Gemini to include more racial and ethnic diversity in the student population and specifying the age range should be adolescents.

APA failure modes students actually hit

  • Chat title, not the prompt, goes in the reference. Describe prompts in the Method section, an appendix, or a supplement. They are not a fifth reference element.
  • No version number by default. The 2023 advice to write ChatGPT (Mar 14 version) is retired. Name the model (ChatGPT-5, Gemini 2.5 Flash) when the tool shows one. Add a parenthetical version only if the product still prints one.
  • Company is the author. OpenAI, not ChatGPT; Google, not Gemini. APA’s reason is consent and responsibility, not branding.
  • A share link that still needs your login is not retrievable. Treat that chat as undocumented software: cite the tool generally and keep the transcript in your records.
  • Do not cite AI for a fact you have not checked. Verify claims against a published source and cite that source. APA is a documentation style, not a license to outsource evidence.

APA Parts 2 and 3: Search, Software, and Permission

Part 1 is the reference shape. Part 2 covers AI used as a search engine and AI built into ordinary software. Part 3 answers the question students actually type: “Is AI allowed in APA Style?” APA does not grant permission. The instructor, department, or publisher does. A correct reference cannot legalize a banned tool.

  • Search or intermediary use. If you used a chatbot the way you use Google or a database—to find a page you then opened—cite the published source. Part 2 treats that path like an ordinary search. Keep a note of the tool if your method section needs to say how you found the literature.
  • AI inside Word, Docs, or Canva. APA’s software rule in §10.10 already skips common programs. Part 2 extends that to an assistant sitting inside those programs. A grammar pass in Copilot-in-Word is usually disclosure territory, not a ChatGPT-style reference. A standalone Copilot chat you quoted is still a chat.
  • Google AI Overviews. Click the source icon and cite the page. Do not put “Google AI Overview” in the reference list. MLA’s October 2024 note below says the same thing in different words: search results are not a work.
  • Allowed is not binary. Part 3 says some tools and some tasks may be approved while others are not. Brainstorming a research question, summarizing an article you also read, and submitting generated prose as your own writing are three different permissions.

MLA 9th Edition (August 2025 Guidance)

MLA 9 uses the core-elements template in the MLA Handbook. The updated Style Center post (published 13 August 2025) keeps the 2023 rule that the tool is not an author, then changes two details: put a model name such as GPT-4o in the Version slot, and prefer a stable share URL in Location. If the tool cannot share, use the general tool URL. Acknowledge editing, translation, or other functional uses in a note or the text even when you are not quoting output. For uses that go beyond a single citation, see Beyond Citation: Describing AI Use in Your Work.

MLA Style Center, March 2023 rule restated in the 2025 update

We do not recommend treating the AI tool as an author.
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

Official MLA text example

The 2025 examples replace the 2023 Great Gatsby green-light chat. The Style Center asked ChatGPT (GPT-4o) about nature in Jane Austen’s Mansfield Park and published both the generated sentence and the works-cited line. The in-text pointer shortens to the start of that description.

MLA Style Center, August 2025

Generated passage they quote:

Nature in Mansfield Park often mirrors the personalities or inner states of the characters. The different environments – Mansfield Park, Sotherton, and the wilderness at the parsonage – are symbolic of the moral choices and the values of the people who inhabit them.

Paraphrase in your prose:

In Mansfield Park, physical locations like Mansfield Park and Sotherton reflect the morality and choices of the people who live in them (“Describe the theme”).

Quotation in your prose:

Nature is depicted frequently throughout Mansfield Park, and it “often mirrors the personalities or inner states of the characters” (“Describe the theme”).

Works-cited entry:

“Describe the theme of nature in Jane Austen’s Mansfield Park” prompt. ChatGPT, model GPT-4o, OpenAI, 23 Sept. 2024, chatgpt.com/share/66f1b0a0-d704-8000-be9a-85f53c850607.

A shorter description is also allowed. The Style Center’s own alternative is Theme of nature in Austen’s Mansfield Park prompt when the conversation had several turns.

Official MLA image and creative-text examples

MLA Style Center, August 2025 — image caption and created works

Figure caption (DALL-E 3):

Fig. 1. “Create an expressionist-style image of two people standing on a beach looking at the ocean” prompt, DALL-E, version 3, OpenAI, 23 Sept. 2024, chatgpt.com/share/66f1c3a3-3f90-8000-9750-82c57c4a6592.

Titled poem:

“The Oak Tree” free verse poem. ChatGPT, model GPT-4o, OpenAI, 23 Sept. 2024, chatgpt.com/share/66f1c740-7500-8000-a38b-6d6045c811f5.

Untitled poem (first line as title):

“The autumn leaves fall softly to the ground . . .” sonnet about autumn. ChatGPT, model GPT-4o, OpenAI, 23 Sept. 2024, chatgpt.com/share/66f1ce9d-0b38-8000-a209-112496d3e0b1.

Secondary sources, Copilot, and Google AI Overviews

If Copilot or ChatGPT points at Britannica, a journal, or a book, open that source and cite it directly. The Style Center’s 2025 note is that models hallucinate citations and mis-summarize the pages they do link. An AI overview is a research conduit, not a substitute for the page. See MLA Handbook 9 §§5.28–5.29 for descriptions used as titles and §5.34 when a tool is only a path to another work.

MLA Style Center, 2 October 2024 — Google AI Overviews

No. Google’s AI Overviews feature is a form of search results, and as we note in this post, “[s]earch results are not a work.”
If you want to cite something from the AI Overviews feature, click through to the source and cite it instead.

The same post warns that an Overview can scrape a sentence that the original page used as a counter-example. Their scare-quotes case: the line “I ‘liked’ her post on Facebook” appears in the source as an example of when not to use scare quotes. That is why you open the page. For uses that are not a single quoted passage—ideation, drafting help, learning the tool—MLA’s Beyond Citation post says citation is not enough. Describe where the AI stopped and you began.

MLA Style Center, Beyond Citation

But generative AI output is not a source in the traditional sense.
Indicating where and how AI has touched your research and writing is just as much a part of academic integrity as citing your research sources is.

Chicago 18th Edition

Chicago’s public Style Q&A still gives the clearest official wording, and the published notes now use 10 January 2026 plus a Share-button URL. CMOS 18 §14.112 folds the same idea into the manual: credit generated words or images where they appear; treat an unshareable chat like a personal communication (§14.111); add a bibliography or reference-list line only when a public URL exists. In a note the tool stands in as author and the company as publisher. Author-date puts leftover facts in a parenthetical.

Chicago Manual of Style Q&A (current wording)

You do need to credit ChatGPT and similar tools whenever you use the text that they generate in your own work (in addition to acknowledging other uses of such tools).
But for most types of writing, you can simply name the AI tool in your text (e.g., “The following recipe for pizza dough was generated by ChatGPT”).
If you’ve edited the AI-generated text, you should say so in the text or at the end of the note (e.g., “edited for style and content”).

DePaul University Library and Georgetown University Library both quote CMOS 18 §14.112 on bibliography treatment. The complete sentence they print is the one that students miss:

CMOS 18 §14.112, as quoted by DePaul and Georgetown

Like personal communications (see 14.111) and social media posts (see 14.106), chatbot conversations are not usually included in a bibliography or reference list.

Official Chicago note examples (January 2026)

These are the Q&A’s published notes. The older March 7, 2023 lines are retired. CMOS says replace the word URL with the address copied from OpenAI’s Share button. If you have no public link, stop after the date. If you edited the output, add edited for style and content. Silent changes such as smart quotes do not need a note (CMOS 12.7–12.8).

Chicago Style Q&A — notes and author-date

In the text:

The following recipe for pizza dough was generated by ChatGPT.

Note, prompt already in the prose:

1. Text generated by ChatGPT, OpenAI, January 10, 2026, URL.

Note that carries the prompt:

1. ChatGPT, response to “Explain how to make pizza dough from common household ingredients,” OpenAI, January 10, 2026, URL.

Author-date parenthetical:

(ChatGPT, January 10, 2026)

Chicago 18 share URL and bibliography

When a conversation is publicly retrievable, CMOS 18 lets you treat it more like other web content. A labelled template—not an invented chat—looks like this. Put the bibliography under the company if your instructor wants a list entry. Do not invent a chatgpt.com/share/ address.

CMOS 18 templates when a public share URL exists

Note:

1. Text generated by ChatGPT, Publisher, Month Day, Year, URL.

Note with prompt:

1. Response to “Text of your prompt,” ChatGPT, Publisher, Month Day, Year, URL.

Bibliography (only if the URL is public):

Publisher. Response to “Text of your prompt.” ChatGPT. Month Day, Year. URL.

Journal Papers: ICMJE January 2026

A student paper and a journal manuscript are not the same permission. The ICMJE Recommendations (updated January 2026, §II.A.4 and Section V) bind medical and many science journals. Chicago’s Q&A also points authors to the COPE position on authorship and AI tools (13 February 2023). Both say the same thing the citation styles already said: the tool is not an author, and the human is responsible for every sentence.

ICMJE Recommendations, January 2026

Chatbots (such as ChatGPT) should not be listed as authors because they cannot be responsible for the accuracy, integrity, and originality of the work, and these responsibilities are required for authorship (see Section II.A.1).
Referencing AI-generated material as the primary source is not acceptable.

ICMJE also tells authors where to disclose: writing assistance goes in the acknowledgment (§II.A.3); data collection, analysis, or figure generation goes in the Methods (§IV.A.3.d); both the cover letter and the manuscript must say that AI was used. Nondisclosure can be treated as misconduct. That is stricter than a course paper that only wants a Chicago note.

Images, Code, and Editing

The same three styles split generated artifacts from hidden assistance. A DALL-E or Midjourney image that appears in the paper needs a caption or a figure note (MLA §1.7; CMOS 18 §3.38 if you adapted it). Code you kept after a model rewrote it belongs in the method or a repository note. Copy-editing that never enters the paper as someone else’s sentences is usually a disclosure, not a full citation—APA’s general-tool reference plus a Method sentence is enough; MLA wants that functional use acknowledged; Chicago can do it in a sentence.

What to put on the page for common AI tasks
What you didAPA 7MLA 9Chicago 18
Quoted a chatbot paragraphShared-chat reference + in-textPrompt description + share URLText or note; bibliography only with a public URL
Used AI only to edit your draftGeneral-tool reference + Method or author noteAcknowledge in a note or the textA sentence in the text is enough
Used Copilot inside Word like spell-checkUsually no reference (Part 2 / §10.10)Acknowledge functional use if it was substantiveA sentence if the help was more than proofreading
Clicked a Google AI OverviewCite the linked page, not the OverviewCite the linked page; Overviews are not a workCite the linked page
Inserted a generated imageFigure note that names the toolCaption from the prompt, model, date, URLCredit in the caption; §3.38 if adapted
Asked AI for sources, then read themCite the published sources, not the chatCite the published sources, not the chatCite the published sources, not the chat

What to Save When the Chat Cannot Be Shared

Private school accounts, deleted threads, and tools with no Share button leave readers unable to recover the output. Keep the prompt, the full reply, the model name, and the date in your research notes or an appendix your instructor can request. APA then uses the general software reference. MLA still lists a description plus the general tool URL. Chicago stays in the text or a note. None of those formats turns a banned tool into an allowed one. Journal authors must still disclose the tool in the cover letter even when no share URL exists.

Checklist before you hit submit

  • The syllabus or journal actually allows this use
  • Every quoted or paraphrased generated sentence is marked
  • Functional uses (edit, translate, brainstorm) are disclosed
  • Facts were checked against a published source
  • A Google AI Overview was not treated as a source
  • The share URL opens without your password
  • APA uses the company as author; MLA does not invent an author
  • Chicago has a note or a sentence, not a silent bibliography line
  • A journal manuscript names the tool in the cover letter and the right section

Fill the form instead of guessing the punctuation

The generator asks for the chat title, prompt, date, public URL, and optional model, then prints the current APA, MLA, or Chicago line. The style-only pages keep the same official examples in one format each.

Frequently Asked Questions

Do I need to cite ChatGPT?
Yes, whenever generated text, an image, data, or code appears in the paper, and usually when the tool edited or translated prose you are submitting. APA, MLA, and Chicago all expect that credit. A citation does not override a syllabus that forbids AI.
How do I cite a shared ChatGPT conversation in APA 7?
Use the company, the full date, the actual chat title in italics, [Generative AI chat], the tool or model, and the public share URL. Example from APA Style (21 August 2025): OpenAI. (2025, August 21). High school grammar concepts [Generative AI chat]. ChatGPT. https://chatgpt.com/share/68a77b60-0ee4-800c-9acc-cd3fd573c311 In text: (OpenAI, 2025).
How do I cite ChatGPT in MLA 9?
Do not list the tool as an author. Start with a description of the prompt, name ChatGPT as the container, add the model (GPT-4o in the official 2025 examples), OpenAI, the generation date, and a share URL. Official works-cited line: “Describe the theme of nature in Jane Austen’s Mansfield Park” prompt. ChatGPT, model GPT-4o, OpenAI, 23 Sept. 2024, chatgpt.com/share/66f1b0a0-d704-8000-be9a-85f53c850607.
Does Chicago put ChatGPT in the bibliography?
Usually no. CMOS 18 §14.112 treats an unshareable chat like a personal communication: credit it in the text or a note. The live Style Q&A now prints notes dated 10 January 2026 that include a Share-button URL. Add a bibliography entry only when that URL is public. The Q&A’s in-text model is “The following recipe for pizza dough was generated by ChatGPT.”
How do I cite an AI-generated image?
MLA’s official DALL-E caption is Fig. 1 plus the prompt, DALL-E, version 3, OpenAI, 23 Sept. 2024, and the share URL. APA puts the credit in a figure note and cites the tool or the chat. Chicago credits the image in the caption (CMOS 18 §3.38 when you adapted it) and still skips the bibliography unless a public copy exists.
Should I cite a Google AI Overview?
No. The MLA Style Center (2 October 2024) says Google’s AI Overviews are search results, and “search results are not a work.” Click through to the linked page, read it, and cite that page. APA’s Part 2 post is the place to read how APA treats AI used as a search engine. Do not put the Overview itself in an APA, MLA, or Chicago reference list.
What if my professor does not allow AI?
Do not use it. APA’s September 2025 series (Part 3, and the opening of Part 1) says what is allowed depends on the instructor, department, or publisher—not on APA Style. Citation formats exist for permitted uses. They are not a workaround for a ban. Read the syllabus, the assignment sheet, and the campus integrity policy before you open the tool.
What if the conversation is not publicly retrievable?
Save the prompt, output, model, and date. APA cites the tool as software and describes the chat in the text. MLA uses the prompt description and the general tool URL. Chicago stays in the text or a note and omits the bibliography. None of the styles wants a private login URL. Journal authors still disclose the tool to ICMJE in the cover letter.