Anthropic said its new models will begin watermarking content in the EU, as strict obligations from the bloc's AI Act start taking effect.

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

Anthropic will embed machine-readable watermarks in all Claude model text outputs starting August 2, 2026, complying with the EU AI Act globally.

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

The EU’s AI rules are having an impact.