What is SynthID, and how does it detect AI-generated images?

As artificial intelligence (AI) image generators grow more sophisticated, distinguishing synthetic images from genuine ones has become one of the defining challenges of the digital age.
Google DeepMind’s SynthID is designed to leave an invisible mark at the very moment an image is created. This article explains how SynthID works, what it can and cannot do, and why it matters.
What is SynthID?
SynthID is an invisible digital watermarking and detection system developed by Google DeepMind. Rather than attaching a visible label or relying on file metadata that can be easily stripped away, SynthID embeds a signal directly into the pixels of an AI-generated image at the point of creatio...