When you cite AI-generated content using APA style, you should treat that content as the output of an algorithm, with the author of the content being the company or organization that created the model. For example, when citing ChatGPT, the author would be OpenAI, the company that created ChatGPT. 

Here are some guidelines for referencing AI-generated content in APA style:

• When you reference this content directly in your text, you should include an in-text citation, and an associated entry in your reference list. 
• If you have used AI tools for some part of your research, you should describe that use in your introduction or methods section, and include the prompts that you used.

When referencing shorter passages of text, you can include that text directly in your paper. You might also include an appendix or link to an online supplement that includes the full text of long responses from a generative AI tool. 

Format:

Author. (Date). Name of tool (Version of tool) [Large language model]. URL

Example:

In-text

When prompted with “Is the left brain right brain divide real or a metaphor?” the ChatGPT-generated text indicated that although the two brain hemispheres are somewhat specialized, “the notation that people can be characterized as ‘left-brained’ or ‘right-brained’ is considered to be an oversimplification and a popular myth” (OpenAI, 2023).

Reference

OpenAI. (2023). ChatGPT (Mar 14 version) [Large language model]. https://chat.openai.com/chat