AI Text Watermarking Is Free And Good
Don't Worry About the Vase
Read the full articleScott Aaronson and Hendrik Kirchner developed a near-costless AI text watermarking method that subtly encodes outputs using a secret key-based pseudo-randomness source. Google has implemented this since 2024, and Anthropic recently adopted it to comply with the EU Code of Practice, enabling public detection without affecting output quality.

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