Anthropic to Add Watermarks to All Claude Outputs Under EU AI Act
jedisct1 · x · 2026-08-11
Complying with the EU AI Act's transparency requirements, Anthropic plans to embed watermarks and provenance metadata into Claude's outputs.
- Timeline: New models launched in the EU on or after August 2, 2026, will support machine-readable marks from day one, with existing models updated during a transition period.
- Scope: The marking will apply globally across all Claude platforms, including the API, Claude.ai, and Claude Code.
- Detection: Anthropic will provide documentation and tools to help users and third parties detect these watermarks.
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