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Google Opens SynthID Detector Globally After Watermarking 180 Billion Images and Videos

October 7, 2026 at 10:17 EDT

Security
Media Generation

Google is expanding SynthID Detector from a limited verification portal to a public tool available globally in English, allowing anyone to check whether an image, video or audio file carries a SynthID watermark. The company says SynthID has now watermarked more than 180 billion images and videos, 240,000 years of audio, and is handling more than 1 million verification requests a day across Search, the Gemini app and Chrome.

Oct. 7, 2026 · Google

SynthID becomes a public check

Google opened SynthID Detector globally in English after watermarking more than 180 billion images and videos and 240,000 years of audio.

180B+

images and videos watermarked

240,000

years of audio watermarked

1M+

verification requests per day

Watermarking scale since the previous update

100Bprevious images and videos

180B+current images and videos

The visible jump is the core story: public verification is arriving after Google reported a much larger base of watermarked media.

How the check works

Upload

One image, video or audio file

→

Scan

Look for an invisible SynthID watermark

→

Result

Show whether a supported signal is detected

What improves

A public detector gives users and verification teams a direct provenance check instead of relying only on visual clues.

What remains limited

A missing watermark is not proof that media is human-made, and heavy edits can reduce confidence.

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