OpenAI's new image watermarks make it easier to spot AI fakes - here's how
OpenAI has introduced new image watermarks to enhance the identification of AI-generated images. This includes the use of C2PA metadata and hidden pixel signals for better security against tampering. A public verification tool is also being rolled out to assist users in verifying the authenticity of images.
- ▪OpenAI is now using C2PA metadata and SynthID watermarks to tag AI-generated images.
- ▪Hidden pixel signals are designed to help identify AI-generated content more effectively.
- ▪A public verification tool is being launched to assist in confirming image authenticity.
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Innovation Home Innovation Artificial Intelligence OpenAI's new image watermarks make it easier to spot AI fakes - here's how Older metadata could be stripped out. OpenAI's new approach hides signals in the pixels themselves. Written by David Gewirtz, Senior Contributing EditorSenior Contributing Editor May 19, 2026 at 10:45 a.m. PT Elyse Betters Picaro / ZDNETFollow ZDNET: Add us as a preferred source on Google. ZDNET's key takeaways OpenAI now uses C2PA metadata and SynthID watermarks.Hidden pixel signals can help identify AI-generated images.A public OpenAI verification tool is also rolling out.Today, OpenAI announced what it calls content provenance signals across its image ecosystem. In other words, it's tagging its AI-generated images as AI-generated.This is not new.
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