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Google opens its SynthID detector to everyone to identify AI-generated images, video and audio

The SynthID Detector, until now an early version for media professionals, is available globally in English and recognises watermarks from Google and partners such as OpenAI, NVIDIA and Kakao.
October 7, 2026
Curated Medium

What it says

  • Since 2023, SynthID has watermarked more than 180 billion images and videos and 240,000 years of audio content.
  • The SynthID Detector, introduced last year as an early version for media professionals, becomes available to everyone, globally and in English, from 7 October 2026.
  • It detects content created with AI from Google or from partners such as OpenAI, NVIDIA and Kakao; Apple will join soon.
  • The verification features built into Search, the Gemini app and Chrome now handle more than 1 million requests a day.

The Tech Guardian summarises and comments in its own words on third-party publications. The full information is in the original source, which we recommend you read.

Our take

If your company publishes or receives images, audio or video, for example in communications, insurance or identity verification, you now have a free tool to check whether they carry the watermark of the major generators. Use it as an indication, not as proof: it only detects marks from Google and its partners, and the absence of a mark does not guarantee that the content is authentic.

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