How to cite a ChatGPT conversation (APA 7, MLA 9, Chicago, Harvard)
AI chat citations are still settling, but the basic question is stable: can your reader retrieve the exact conversation? A citation should identify the AI provider, model or product, prompt or conversation title, date, and share URL when one exists. If there is no share link, explain the use in text.
When to use this source type
Use this source type when you cite a ChatGPT response, shared conversation, prompt output, or AI-generated text as a source. This may be appropriate when you analyze the tool's answer, document your research process, or your assignment requires disclosure of AI assistance. The conversation date matters because model behavior changes.
Do not use a ChatGPT citation to replace citations for facts the model mentioned. Cite the original source for factual claims whenever possible. If your institution treats AI output as personal communication, follow that rule and describe the prompt in text. If you have a public share URL, include it so the reader can inspect the exchange.
Quick reference table
The same source facts appear in each style, but they move around. Check the author role, date detail, title formatting, container, locator, and the one style-specific rule before you paste a citation into your reference list.
| Style | Author | Date | Title | Container | URL or locator | Style note |
|---|---|---|---|---|---|---|
| APA 7 | OpenAI as author. | Conversation date. | Prompt or description as title. | Model or ChatGPT label. | Share URL if available. | May be personal communication without URL. |
| MLA 9 | Prompt as title or description. | ChatGPT as container. | OpenAI as publisher. | Date of response. | Model version if known. | Share URL if available. |
| Chicago | OpenAI or tool as author. | Year after author. | Prompt or response description. | ChatGPT and model. | Date of conversation. | URL or note-only citation. |
| Harvard | OpenAI as author. | Year in parentheses. | ChatGPT and model label. | Prompt or description. | Available at share URL. | Accessed date or conversation date. |
APA 7 walkthrough
APA 7 starts with the same basic question: who is responsible for this ChatGPT conversation? For a ChatGPT conversation, use OpenAI for ChatGPT unless your institution asks for the model name as author. The date element uses the date of the conversation or shared response. The title element uses the prompt, share title, or a concise description of the response. The source element identifies ChatGPT and the model when known. Finally, the locator element is a public share URL, or no reference-list entry if treated as personal communication. Work through those fields in order and the punctuation becomes much easier to control.
APA guidance has treated non-retrievable AI output like personal communication. If you include a reference, make clear what prompt produced the output. In text, use (OpenAI, 2024). If you quote directly, add the page, paragraph, timestamp, or legal pin cite required by the style. If your source is online, prefer a stable URL or DOI over a search-result link, and remove tracking parameters before you submit the reference.
OpenAI (2024, November 2). Explain the difference between APA 7 and MLA 9 [Large language model]. *ChatGPT (GPT-4)*. https://chat.openai.com/share/example-share-id
MLA 9 walkthrough
MLA 9 starts with the same basic question: who is responsible for this ChatGPT conversation? For a ChatGPT conversation, often starts with the prompt title rather than a human author. The date element uses the response date. The title element uses the prompt or a short description in quotation marks. The source element names ChatGPT as the container and OpenAI as publisher. Finally, the locator element uses a share URL when available. Work through those fields in order and the punctuation becomes much easier to control.
MLA recommends describing the prompt so readers understand what generated the output. Do not cite ChatGPT for facts that need primary sources. In text, use (OpenAI). If you quote directly, add the page, paragraph, timestamp, or legal pin cite required by the style. If your source is online, prefer a stable URL or DOI over a search-result link, and remove tracking parameters before you submit the reference.
OpenAI "Explain the difference between APA 7 and MLA 9 [Large language model]." *ChatGPT (GPT-4)*, 2 Nov. 2024, chat.openai.com/share/example-share-id. Accessed 15 Jan. 2025.
Chicago walkthrough
Chicago starts with the same basic question: who is responsible for this ChatGPT conversation? For a ChatGPT conversation, can use OpenAI or the product name depending on local guidance. The date element places the year after the author in author-date format. The title element describes the prompt or response. The source element names ChatGPT, model, and date where useful. Finally, the locator element uses the share URL or a note-only citation for non-retrievable chats. Work through those fields in order and the punctuation becomes much easier to control.
Chicago is comfortable with descriptive notes for AI output. For coursework, follow the department's AI disclosure rule before the citation style rule. In text, use (OpenAI 2024). If you quote directly, add the page, paragraph, timestamp, or legal pin cite required by the style. If your source is online, prefer a stable URL or DOI over a search-result link, and remove tracking parameters before you submit the reference.
OpenAI. 2024. "Explain the difference between APA 7 and MLA 9 [Large language model]." ChatGPT (GPT-4). accessed January 15, 2025. https://chat.openai.com/share/example-share-id.
Harvard walkthrough
Harvard starts with the same basic question: who is responsible for this ChatGPT conversation? For a ChatGPT conversation, uses OpenAI as the corporate author for ChatGPT. The date element uses the year of the conversation. The title element identifies ChatGPT, model version, and prompt or description. The source element treats the model as an online tool or large language model. Finally, the locator element uses Available at plus the share URL when present. Work through those fields in order and the punctuation becomes much easier to control.
Harvard variants differ widely for AI. Be explicit about the prompt and date, because model output is not stable across users or time. In text, use (OpenAI, 2024). If you quote directly, add the page, paragraph, timestamp, or legal pin cite required by the style. If your source is online, prefer a stable URL or DOI over a search-result link, and remove tracking parameters before you submit the reference.
OpenAI (2024) Explain the difference between APA 7 and MLA 9 [Large language model]. [Online] ChatGPT (GPT-4). Available at: https://chat.openai.com/share/example-share-id (accessed January 15, 2025).
Common mistakes for this source type
Most errors come from forcing a ChatGPT conversation into the wrong template. Before submitting, check these details against the source itself, not against a database preview or a copied citation.
- Citing ChatGPT for a factual claim instead of finding the original source.
- Leaving out the prompt or conversation description.
- Pretending a private chat is retrievable when there is no share URL.
- Using the model release date instead of the conversation date.
- Ignoring an instructor's separate AI disclosure policy.