Anthropic will embed invisible watermarks in all Claude-generated text and sign files using the C2PA standard. New models shipping from August 2026 onward will have labeling built in from day one. The policy applies worldwide, and Anthropic plans to provide detection tools for third-party verification.

All CollectionsPrivacy and legalHow Claude marks AI-generated content Updated todayAnthropic has signed the EU AI Act's Article 50(2) Code of Practice on Transparency of…

This move is part of the company's effort to comply with the EU regulation and transparency requirements for AI.

EU rules cited as reason for effort to trace AI output ancestry

Anthropic said new Claude models will embed an "imperceptible watermark" directly into AI-generated text.