Google has introduced a public-facing tool called SynthID Detector at Google I/O 2025 to detect digital watermarks in AI-generated content.SynthID Detector can scan images, video, audio, and text to identify AI-generated material and highlight specific watermarked portions.SynthID was originally created to mark content from Google's models, but it is now available for other companies to adopt for their AI output.Journalists, researchers, and developers can join a waitlist to try SynthID Detector through Google's online form.