Comment by mesh

>That is, these companies are largely not doing the hard part, which is creating and training these models in the first place.

fyi, for Adobe Firefly, we are training or models. From the FAQ:

"What was the training data for Firefly?

Firefly was trained on Adobe Stock images, openly licensed content and public domain content, where copyright has expired."

https://firefly.adobe.com/faq

(I work for Adobe)