With AI upscaling it fills it in based on the training from other images/videos. So it probably won’t be an alien, but small details common in other videos that looked similar will also show up in the upscaled videos. If an extra flower shows up in a field of grass it’s usually not a big deal, but for some things like faces or symbols, small details can really change the way people interpret it.
At worse upscaling will make the video worse. It won’t add aliens or some shit to your videos.
With AI upscaling it fills it in based on the training from other images/videos. So it probably won’t be an alien, but small details common in other videos that looked similar will also show up in the upscaled videos. If an extra flower shows up in a field of grass it’s usually not a big deal, but for some things like faces or symbols, small details can really change the way people interpret it.
I highly doubt the upscaling could do anything close to adding faces or something.
The best it could do with a blurry face like thing is probably just to make it look sharper.