Anthropic has announced that it will watermark not just AI-generated content but also content processed by its models, using invisible machine-readable watermarks and digitally signed provenance metadata. The move is designed to comply with the European Union’s AI Act, which requires AI providers to mark AI-generated or manipulated audio, image, text, and video.
Anthropic will apply these watermarks globally to all new models from the start, with older models required to comply by December 2026. The company is going beyond EU requirements by watermarking even minor edits, such as grammar corrections, that the regulation does not mandate.
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