Anthropicannounced it is adding invisible watermarks to text and images generated by its AI chatbot Claude to help identify AI-created content.- The global update aligns with requirements under the European Union's AI Act, which mandates methods for detecting AI-generated material.
- Text watermarking relies on subtle statistical word choices detectable by automated systems without altering the readability or meaning of responses.
- The feature raised concerns among users that Claude-edited human-written work might be falsely flagged as AI-generated content.
- Anthropic acknowledged system limitations, stating that a detected mark confirms content was processed by Claude but does not conclusively prove full provenance.