watermarking

Anthropic Implements Embedded Text Watermarks and C2PA Provenance Under EU AI Act

Anthropic has begun embedding machine-readable watermarks directly into text generated by its Claude models alongside cryptographic provenance metadata in generated files. The rollout formalizes Anthropic's commitments under the European Union AI Act's Article 50(2) Code of Practice on Transparency of AI-Generated Content, applying universally across consumer and enterprise interfaces worldwide. The marking system operates at the model level rather than the application layer. For text generatio

Developers Deploy Open-Source Workarounds to Strip Claude's Statistical Text Watermark

Days after Anthropic introduced global text watermarking for Claude to comply with the European Union's AI Act transparency requirements, open-source developers and independent researchers have released multiple tools and pipelines aimed at stripping or perturbing the embedded statistical signatures. The rapid emergence of evasion techniques underscores the structural challenges of applying robust watermarking to natural language generation without introducing perceptible latency, semantic dist

Anthropic's Claude text watermark goes global, with built-in limits