Anthropic Adds Invisible Watermarks To Claude Outputs Worldwide
Culture Index
Score Breakdown
Relevance
3/25
Freshness
25/25
Authority
18/20
Brand Signal
13/15
Depth
2/15
5-Axis Cultural Radar
Claude’s writing may look exactly the same, but Anthropic is now embedding machine-readable watermarks that can leave a statistical trail across longer passages.


