Read the creator disclosure
YouTube requires creators to disclose realistic content that was meaningfully altered or synthetically generated, such as a real person appearing to say something they did not say or a realistic scene that never happened. For photorealistic content the label can appear in the video player; for other content it appears in the expanded description. YouTube may also apply labels automatically for content made with its own AI tools, content that carries C2PA metadata, or content its systems detect.
Source: YouTube altered content disclosure (opens in a new tab)
Look past the watch page
A YouTube watch URL points to a platform page, not a media file. Read the description, the channel's other uploads and any linked sources before drawing a conclusion. If you own a clip or have permission to analyze it, the original upload file is far better evidence than a screen recording. A thumbnail is a separate image, and a result for it says nothing about the full video. Image Evidence does not download YouTube videos or bypass access controls.
What sampled frames can miss
Video checks usually examine a limited set of frames rather than every moment. A short generated segment between samples can be missed, and frame analysis does not authenticate the audio, judge lip synchronization or establish who is speaking. A genuine interview can also contain synthetic backgrounds or overlays. Keep these limits in mind whenever a whole video is summarized by a single number.
Separate origin and context
Even genuinely recorded footage can carry an inaccurate title or be reused from another event. Compare the claimed date, place and source with independent records when the question matters, and review the creator's disclosure and editing explanation rather than treating a detector as the final word. Downloaded, transcoded or screen-recorded copies may not preserve C2PA data or watermarks.
No video accuracy claim yet
Image Evidence has not evaluated an independently labeled YouTube corpus and publishes no video detection accuracy. The accuracy page explains what a meaningful benchmark would include. We do not make claims about named speakers or identify people. Treat any result as provisional guidance rather than a reason to report, penalize or accuse someone.
How do you know if a YouTube video is AI-generated?
Look for the altered or synthetic content label in the player or the expanded description, read the description and channel history, and check whether trusted outlets report the same footage. YouTube's labels rely on disclosure, its own tools, C2PA metadata or detection, so an unlabeled video can still contain AI-generated material.
Does YouTube label AI-generated videos?
Yes. Creators must disclose realistic altered or synthetic content, and YouTube can add labels automatically, including for videos that carry C2PA metadata. Creators who consistently fail to disclose risk having labels applied for them and further penalties. The policy focuses on realistic content, so fantasy animation or obvious effects may not be labeled.
Can AI detectors analyze YouTube videos?
Some tools accept uploaded clips and analyze sampled frames. Results are usually weaker for compressed, re-uploaded or screen-recorded copies, and frame analysis does not cover audio. Image Evidence does not fetch YouTube videos; for an important clip, ask the creator for the original file and its context.