Anthropic to Watermark Claude-Generated Text to Comply with EU AI Act
ProfChesterman · x · 2026-08-12
To comply with the EU AI Act's transparency requirements that took effect on August 2, Anthropic announced it will watermark text and files generated by its models, including Claude.
- Scope: Models released after August 2 will automatically feature watermarking, with support for older models coming later.
- Implementation: Text watermarks will be embedded in the text itself, persisting through copy-pasting and some editing. Files will use the C2PA open standard.
- Application Level: Watermarking is applied at the model level, meaning it will be present regardless of the Claude product or surface used.
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