Pushmeet Kohli, Vice President of Science and Strategy at Google DeepMind, announced that the SynthID Detector has expanded from a trial version for media professionals to a global audience. The website is now available worldwide, with an English interface. Users can upload images, videos, or audio to check for AI watermarks from Google or its partners.

SynthID was launched in 2023, embedding invisible signals into image and video pixels, as well as audio waveforms. Google claims to have watermarked over 18 billion images and videos, along with audio equivalent to 240,000 years. Media generated by Gemini, Flow, ProducerAI, Vids, as well as Nano Banana, Veo, and Lyria will carry this mark. Last year, the detection entry was first opened to journalists, media, and researchers, with the public previously only able to inquire within Gemini, where the model sometimes could not provide a clear yes or no.

The new site removes Gemini from the detection process. Ars Technica reports the address is SynthID.com. It no longer only recognizes Google's own watermark version but also acknowledges the watermarks of partners, including OpenAI, Nvidia, Kakao, with Apple set to join soon. TechCrunch lists supported image formats as JPG, PNG, WEBP, GIF, TIFF, with video formats including MP4, MOV, WEBM, and audio formats as WAV, MP3, FLAC, AAC, etc. OpenAI also has a detection site but originally only recognized its own signature.

Detection is also embedded in search, the Gemini app, and Chrome. Google states these built-in verifications now handle over 1 million requests daily. The website adds the same context, not a new content removal right. No watermark does not mean the file is not generated. Models, screenshots, recompressions, and crops that have not adopted this watermark are not covered by this announcement.

Buyers include newsrooms, platforms, and ordinary uploaders who need to confirm the source of materials before publication, while sellers are model companies that still issue their own watermarks and have non-interoperable detection points. This is a verification flow driven by the opening of detection entry, not a previously announced authentication fee. Requests will shift from "asking Gemini once" to a dedicated website, along with over 1 million daily verifications in search and browsers. Beneficiaries include Google, OpenAI, Nvidia, and Kakao that have integrated SynthID, while those without this marking face pressure.

Microsoft and Meta use a different set of watermarking and verification standards. Text watermarks were previously open-sourced, and this announcement focuses on images, videos, and audio for the general public.

Source: Public Information