You can now check if a video was edited or created with Google AI directly in the Gemini app.

Just upload a video and ask something like, “Was this generated using Google AI?” Gemini will scan for the imperceptible SynthID watermark across both the audio and visual tracks and use its own reasoning to return a response that gives you context. For example, it might say: “SynthID detected within the audio between 10-20 secs. No SynthID detected in the visuals.”

Uploaded files can be up to 100 MB and 90 seconds long.