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Google has opened its SynthID Detector to everyone globally in English, allowing users to check supported images, video and audio for watermarks associated with AI-generated content. Google says the tool can identify content made with its own AI systems and those of partners including OpenAI, NVIDIA and Kakao; Apple support is planned, but details and timing have not been given.
Google has made its SynthID Detector available to the public globally in English, expanding a tool previously offered in an early version to media professionals. The detector checks supported images, video and audio for SynthID watermarks, which Google says can help identify AI-generated media from Google and participating partners.
Google says users can submit an image, video or audio file to the detector to check whether it contains a watermark linked to AI generation. The company says the tool can recognize content made with AI from Google or partners including OpenAI, NVIDIA and Kakao. Support for content associated with Apple is planned, according to Google, though the company did not provide a launch date or further details.
The public release follows an early version introduced last year for media professionals. Google says it has applied SynthID watermarks to more than 180 billion images and videos and a total of 240,000 years of audio content. Those figures are company-reported totals; the announcement does not specify the measurement method or how much of that material can be checked by the public detector.
Google says the detector joins verification features in Search, the Gemini app and Chrome. The company reports those features now handle more than 1 million requests daily, but does not break down the figure by product or explain whether it counts unique users, files or individual checks.
A Wider Check for AI Media
Opening the detector beyond media professionals gives members of the public another way to seek information about the origin of digital media. That may be useful when people encounter images, clips or recordings whose provenance is uncertain, and it could support journalists and other users who need to check material before sharing or publishing it.
The tool’s reach also depends on whether a file carries a watermark the detector can recognize. Google describes SynthID as an imperceptible watermark, not a general test that can establish whether any media was created or altered with AI. The announcement does not claim the detector can identify every AI-generated file, or determine whether a file without a detected watermark is authentic.
Partner support could extend checks beyond content made with Google systems. However, the announcement names participating companies without describing which products or file types are covered, how partner implementations work, or whether availability differs among them. The practical scope of the detector is therefore not fully clear from the launch announcement.
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How SynthID Reached Public Access
Google introduced SynthID in 2023 as a way to mark AI-generated media using watermarks designed to be difficult to notice. The company says the marks can be used across images, video and audio. It later introduced an early detector for media professionals, before announcing this wider public release.
The detector is part of a broader set of verification features Google says it has added to Search, Gemini and Chrome. The company presents these products as ways to provide context about media encountered online. Its announcement does not describe the detector as an independent certification service or explain how its results should be weighed against other evidence about a file’s source.
The launch is global in geographic availability but currently English-language, according to Google. That distinction matters: access worldwide does not mean the interface or support is available in every language. The announcement does not state whether additional languages are planned.
“With the new SynthID Detector, anyone can easily check if an image, video, or audio file was made with AI from Google or our partners, including OpenAI, NVIDIA, Kakao, and soon, Apple.”
watermark detector for images and videos
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Coverage and Limits Still Unspecified
Google’s announcement does not explain how the detector communicates results, whether it gives confidence levels, or what a user should infer when it finds no watermark. It also does not set out the tool’s limits for edited, compressed or otherwise transformed files. Those details matter because a check for a particular watermark is not the same as a definitive judgment about a file’s origin.
The company has not published a timetable for Apple support or for language versions beyond English. Nor does the announcement specify which partner products are included, whether all supported media formats can be checked, or whether access is subject to limits. These points remain unconfirmed in the source material.
AI-generated media verification tools
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More Languages and Partners Await
For now, Google says the detector is available to everyone globally in English. Users and media organizations will be able to try the public tool for supported images, video and audio, while Google’s existing verification features remain available in Search, Gemini and Chrome.
Google says Apple support is coming but has not announced when. The company also has not outlined a schedule for additional languages or published more detail about partner coverage. Any assessment of the detector’s broader reach will depend on those updates and clearer information about how its results and limitations are presented.
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Key Questions
Who can use Google’s SynthID Detector?
Google says the detector is now available to everyone globally in English. The announcement does not provide further details about account requirements or access limits.
What kinds of files can the detector check?
Google says users can check images, video and audio for SynthID watermarks. The announcement does not list supported file formats or describe technical limits.
Can it identify AI content from companies other than Google?
Google says the tool can check content made with AI from partners including OpenAI, NVIDIA and Kakao. Apple support is planned, but no date was provided.
Does a result prove that a file is or is not AI-generated?
The announcement describes a check for SynthID watermarks; it does not say the detector can identify every AI-generated file. Google has not explained what users should conclude when no watermark is detected.
When will Apple support or other languages arrive?
Google said Apple support is coming but did not give a timeline. The announcement also did not specify whether or when the detector will be offered in languages other than English.
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