Since AI became widespread, images and videos on the internet and social media platforms have also become difficult to tell apart from what’s real.Gemini gained the ability to verify whether images are real in November.Now, Google is once again strengthening transparency by expanding this feature to videos, enabling Gemini to scan videos for the same invisible AI digital watermark.

Gemini can now tell you whether a video is real or AI-generated.
In an article Google’s new blog postAs mentioned, this new feature will join Google’s content transparency tools, primarily using SynthID watermarking to identify AI-generated content. You simply upload a video and ask a question like “Was this generated with Google AI?” Gemini will scan the audio and visual tracks for imperceptible SynthID watermarks, then use its own reasoning to provide a response, offering context and pointing out which segments contain elements generated by Google AI. For example, Gemini might tell you “SynthID was detected in the audio between the 10- and 20-second marks, but no watermark was detected in the visuals.”
The driving force behind the Gemini detector is SynthID, a digital watermarking technology launched by Google in 2023. SynthID embeds imperceptible information into the imagery and audio of AI-generated videos, and this information remains intact even after modifications. It can identify AI-generated content across different modes and flag the parts most likely to have been watermarked with SynthID.

The content of the issue we mentioned above also reveals one of Gemini detector’s main limitations. It can only mark a video as AI-generated when the video was generated by Google’s own tools. This limitation also extends to Gemini’s ability to detect AI-generated images. Gemini may tell you, “This video was not made with Google AI. However, this tool cannot determine whether it was generated with other AI tools.”

Another limitation is that uploaded files have a maximum size of 100MB, with a length limit of 90 seconds. Gemini may respond with something like “SynthID detected 5-10 seconds in the image. No SynthID detected in the audio” or use a similar combination depending on the content to answer your question. Currently, video source verification is available in all languages and countries/regions supported by the Gemini app, and can be used on both the web and mobile.
Source: KOCPC Chinese