Q. How do you cite images generated by AI?
A. AI images are cited like any other image—by giving credit to the source. Here’s an image created back in 2023 by the now-retired DALL·E (an OpenAI product that was folded into ChatGPT that same year):

The credit for that image might read as follows (with the prompt used to generate the image in quotation marks):
“A modern office rendered as a cubist painting,” image generated by OpenAI’s DALL·E 2, March 5, 2023.
If you were to use the same prompt today at ChatGPT or another tool, the resulting image would be credited accordingly. See also CMOS 3.38 and 13.6.