APA Style considers the author to be the company responsible for developing a particular AI tool, and the title is the name of the AI tool itself. In citing AI tools, APA also includes bracketed text to better describe the kind of source being cited, as AI is still considered a resource lying outside of the typical peer-reviewed system. You can read more about how to cite AI tools in APA Style on the APA Style Blog.
Author: The company responsible for developing the generative AI tool.
Date: The year of the version of the generative AI tool used. Only the year is required, not the exact date. (You can look up the version number of the tool that you used to find the year.)
Title: The name of the generative AI model serves as the title and is italicized in your reference. (Although some AI companies label unique iterations of their tools--e.g., ChatGPT-4, Chat-GPT4o--the general name of the model serves as the title.)
Source: When the publisher name and the author name are the same, do not repeat the publisher name in the source element of the reference, and move directly to the URL.