Google rolls out improved SynthID AI content detector, now available globally

SynthID is Google's way of hiding a faint, machine-readable mark inside AI images, video and audio files. A new website lets anyone upload a file and check whether that mark, or ones from partner systems like OpenAI and Nvidia, is present; Google says 180 billion Gemini images and videos already carry it. Only partner tools are covered, so a negative result is not proof of authenticity.

Summary written with AI by HowTechMoves, based on reporting by Ars Technica.