C2PA

Anthropic is rolling out a watermark detection API that lets third-party developers check whether text was generated by Claude. The move stems from EU AI Act compliance requirements and uses a variant of Google DeepMind's SynthID Text method.

Google VP Josh Woodward announced a new toggle that lets users remove visible sparkle-icon watermarks from AI-generated content made with Nano Banana, Omni, and Lyria. The invisible SynthID watermark and C2PA metadata will remain unaffected, and the toggle won't roll out in the EU or South Korea where visible labeling is legally required.

Google now lets users toggle off the visible "sparkle" watermark on content generated with Gemini and Flow, including Nano Banana and Omni model outputs. Invisible SynthID watermarks and C2PA metadata still remain embedded, according to Google Labs VP Josh Woodward.

Anthropic confirmed it will watermark AI-generated text and files from Claude models, complying with the EU AI Act's Transparency Code that took effect August 2. The watermark is applied at the model level and persists through copy-paste, according to the company.