AINotebookcheckabout 1 hour ago
Anthropic adds watermarks to older Claude models
3 min read
Since November 3, Anthropic adds invisible watermarks to older Claude models including Opus 4.6, Sonnet 4.6 and Haiku 4.5 to comply with the EU AI Act deadline. The rollout covers the API, apps and cloud providers like AWS, Google Cloud and Microsoft Foundry, though developers using non-default settings may bypass detection.
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