#YouTube is introducing a new feature, for #AI generated videos, that will require creators to acknowledge if a video they’ve uploaded is 'meaningfully altered or synthetically generated and seems realistic'

YouTube says that this won’t apply to every single piece of content out there.

https://support.google.com/youtube/thread/264550152/new-disclosures-and-labels-for-generative-ai-content-on-youtube

For now, these labels will only show up on the mobile version of YouTube, but it will eventually cover the desktop version as well.