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Cite a ChatGPT conversation in Chicago (author-date)

We’ll detect the type and pull metadata via CrossRef (DOIs), Open Library (ISBNs), or Open Graph tags (URLs). Edit anything before copying.

Citation fields

ChatGPT and other AI conversation citations are new enough that Chicago (author-date) (17th ed.) is still settling on a format. The current consensus is to treat the AI as the author, the version (e.g., GPT-4) as the year, and the prompt as the title, with a stable share URL if one exists.

Chicago (author-date) rules for a ChatGPT conversation

  • Treat the AI as the author: OpenAI for ChatGPT, Anthropic for Claude, Google for Gemini.
  • Use the model version (e.g., GPT-4, Claude 3.5 Sonnet) as part of the title.
  • The prompt you used appears in the title or in square brackets as a description.
  • Use the date of the conversation, not the model's release date.
  • Include a share URL if one is available; otherwise note that the output is unreproducible.
  • Cite as 'OpenAI. Year. ChatGPT response to prompt. Date.' with URL if available.

Worked example

Chicago (author-date) · ChatGPT conversation

A real ChatGPT conversation formatted using the Chicago (author-date) rules above.

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.

Build your own Chicago (author-date) reference

Paste a URL, DOI, or ISBN into the generator at the top of this page. It is already set to Chicago (author-date).