SynthID Detector Guides
Step-by-step guides to checking images, video and audio for the SynthID watermark and other AI provenance.
Was This Image Made with Gemini? Check It with the SynthID Detector
Nano Banana and Google's other image models hide a SynthID watermark in every picture. How to check an image for it, step by step, and how to read the answer.
Oct 21, 2026
Do ChatGPT Images Have SynthID? A SynthID Detector Guide
Yes. Images from ChatGPT, Codex and the OpenAI API carry a SynthID watermark and Content Credentials. How to check one and what each result means.
Oct 21, 2026
How to Check AI Video from Veo with the SynthID Detector
Veo videos carry an invisible SynthID watermark in their frames. How to check a clip on synthid.com or in the Gemini app, and how to read segment results.
Oct 21, 2026