Anthropic watermarks all Claude outputs globally with marks that may persist through editing

Claude's hidden marks will apply worldwide, not just in the EU, per Android Authority. The watermark is designed to follow AI-written text.

• Claude will hide a watermark in your AI-written text, and it’ll follow you around
• Anthropic watermarks all Claude outputs globally with marks that "may persist through some editing"
• Claude will watermark AI-generated text and images
• How Claude marks AI-generated content
• Anthropic pledges to embed watermarks to help discern AI slop in sop to EU