According to that site, Robert Kennedy's speech on the night Martin Luther King was killed[1] was almost entirely the product of GenAI, as were both of Obama's inaugural addresses[1][2].

By this logic, I'd venture a guess that "AI" was also responsible for some of Shakespeare's most famous lines.

[1] https://www.jfklibrary.org/learn/about-jfk/the-kennedy-famil...

[2] https://obamawhitehouse.archives.gov/realitycheck/the_press_...

[3] https://obamawhitehouse.archives.gov/the-press-office/2013/0...