None of the AI generators retrieve things they were trained on, they don't work that way. Everything is original. However our definition of "original" might var

None of the AI generators retrieve things they were trained on, they don't work that way. Everything is original. However our definition of "original" might vary a bit, but so it will vary for any work of art any human artist do as well, as they are also trained on the same images. In the end, a lawsuit and a courtroom might have to decide if by chance someone or some AI creates a picture used commercially that seems similar to someone else's trademark or copyright. Most of the images I've generated using Dalle 2 feels completely original. Just have a look at the reddit r/dalle2 and I'm pretty sure you'll also decide they're "original works".