AI detection

Anthropic is rolling out a watermark detection API that lets third-party developers check whether text was generated by Claude. The move stems from EU AI Act compliance requirements and uses a variant of Google DeepMind's SynthID Text method.

Anthropic is adding machine-readable watermarks to Claude-generated text and digital signatures to generated files to comply with the EU AI Act's Article 50 transparency mandate. The change applies to models launched after Aug. 2 and rolls out globally, though Anthropic admits detection can fail on heavily edited or short text.

Meta has released a web-based detection tool for identifying images created or edited with its new Muse Image model using invisible Content Seal watermarks. The watermarks persist through cropping, compression, resizing, and screenshots, though the tool has rate limits and isn't compatible with SynthID or C2PA standards.