Google makes its SynthID content detector available globally on a dedicated website to check media for watermarks.

Google has made its SynthID content detector available globally on a dedicated website, allowing anyone to check media for hidden AI watermarks. SynthID embeds an invisible signal directly into the pixels of generated images and videos, as well as the waveforms of audio. Google reports that its Gemini models alone have applied these watermarks to more than 180 billion images and videos, along with 240,000 years of audio.

Previously, checking media outside of a restricted tester program required asking Gemini directly, a clunky process that often yielded confusing answers instead of a straightforward yes or no. Furthermore, earlier tools only detected Google's own watermarks. The updated detector changes this by supporting watermarks from all of Google's partners, meaning media generated by other major platforms like ChatGPT can now be flagged.

Users can access the tool immediately at SynthID.com to verify whether content is machine-generated.