Anthropic introduces invisible watermarks in Claude for AI transparency
Anthropic is introducing invisible watermarks on text and images generated by Claude to meet European transparency requirements.

What happened?
Anthropic has announced that its AI service, Claude, will begin embedding invisible watermarks in both generated text and images. These markers are machine-readable and designed to verify that content has been created by an AI bot without altering the visible appearance of the text or image for the end user.
Key facts
| Aktör | Anthropic |
|---|---|
| Produkt | Claude |
| Funktion | Osynlig vattenmärkning på text och bilder |
| Syfte | Följa europeiska regler för AI-transparens |
”Generated text will carry embedded”
Why it matters
The initiative is designed to meet European transparency regulations that require clearer labelling of AI-generated content. By embedding data within the created text and images, the identification of automated material is facilitated, which helps reduce the risk of disinformation and unauthorised use.
Who is affected?
The change affects all Claude users as well as developers and companies that integrate Anthropic's models. Recipients and platforms will gain key tools for detecting and tracking AI-generated material.
Impact on the EU
The watermarking is being introduced primarily to ensure Anthropic complies with EU requirements regarding transparency for AI-generated material. The measure aims to make it easier to identify content created by AI systems within the European market.
What else you should know
The solution relies on invisible, machine-readable patterns in the text structure or image data, allowing the material to be verified without affecting the reading experience for human users. Anthropic has published further information regarding the technology to explain how the verification process functions in practice.
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