The Register article
Anthropic pledges to embed watermarks to help discern AI slop in sop to EU
https://www.theregister.com/ai-and-ml/2026/08/11/anthropic-pledges-to-embed-watermarks-to-help-discern-ai-slop-in-sop-to-eu/5285792
This is a news summary.
Anthropic plans to embed watermarks in text and files generated by its models to comply with content and transparency regulations in the EU AI Act.
According to a help document released on Monday, future generated text will include watermarks, and generated files will include provenance metadata with digital signatures where supported. It also stated that it is working on adding display functionality to already released models during the transition period allowed by EU law.
How Claude marks AI-generated content
https://support.claude.com/ko/articles/16266773
The watermark display feature will be applied in all regions where Claude is available.
This decision could increase preference for open-weight models and reduce reluctance among Claude customers who do not want to disclose the origin of AI-generated content. In the past, Claude users have expressed dissatisfaction with price policy changes, reliability issues, and safety mechanisms that hindered normal work under the pretext of safety.
Claude users seem skeptical about whether text-based watermarking will actually be effective. Researchers have already demonstrated that image-based watermarks can also be removed.
Related Reddit post
https://www.reddit.com/r/ClaudeAI/comments/1vky8at/
