Except for the sci-fi city at the 40 second video mark, I'm pretty sure it's almost all real video, just brought from a big stock video provider.

If you want video of a drone flying over a power plant or hot air balloons taking off, you can license them from stock providers, just like with stock photos.

Of course, it does share some of the cues of AI-generated content - but I suspect a lot of these AI companies buy a lot of stock content for their training datasets.

Some of the stock content providers are also polluting the waters a bit as well, allowing AI generated stock clips to be added :(

I assumed the city came from the same stock series as this meme which predates generative AI: https://knowyourmeme.com/memes/the-world-if

I didn't see any.