Google's Gemini app can check videos to see if they were made with Google AI
Google expanded Gemini's AI verification feature to videos made or edited with the company's own AI models. Users can now ask Gemini to determine if an uploaded video is AI-generated by asking, "Was this generated using Google AI?" Gemini will scan the video'
(The Verge, 2025-12-18T20:31:22Z)