In 2024 the Chicago Manual of Style provided this guidance for citing responses from ChatGPT or output from another generative AI tool.
Citing the prompt/explanation
Explain how the tool has been used and cite the information you have included in the text or note. Cite it even if it has been changed.
Cited in the text:
Format:
Explanation of prompt was generated on Date, by Name of AI tool-version of AI tool.
Example:
An explanation of how bubble gum is made was generated on September 25, 2024, by Copilot-GPT4.
Cited in a note:
Format:
Text generated by Name of AI tool-version of AI tool, Company, Date, URL of publicly available archived conversation.
Examples:
1. Text generated by CopilotGPT-4, OpenAI, September 25,2024, https://copylinkhere.
Include any AI responses in a note, if it doesn't appear in the text. If there is more than one exchange with the tool on the topic, a summary can be provided.
2. Response to “Explain how paper is made from trees,” CopilotGPT-4, Open AI, September 25, 2024, edited for style and accuracy.
Citing the response in a bibliography
Cite the name of the publisher or developer instead of the name of the AI tool if the response is added to the bibliography or reference list. Make sure to attach a public URL.
Bing. Response to “How do wind turbines generate energy?” CopilotGPT-4, September 25, 2024. https://copylinkhere.