Watermarks Without Verification: AI Text Watermarking After the EU AI Act
On August 2, 2026, the obligations of Article 50 of the EU AI Act took effect, requiring generative AI providers to mark the content their systems produce and ensure it can be detected as AI-generated. Days later, Anthropic disclosed that every Claude model released after that date embeds a watermark based on SynthID-Text in all generated text, enabled by default with no user opt-out; Google has deployed SynthID-Text in Gemini since 2024. Users objected that the watermark degrades quality, particularly for code, that it secretly encodes identifying information, and, in mutual contradiction, that it is easily removable and inescapable; the vendor answered with assurances of unchanged quali...
| Authors | Alexander Nemecek, Vipin Chaudhary, Erman Ayday |
|---|---|
| Primary category | cs.CY |
| Published | 9 September 2026 |
| Last updated at source | 9 September 2026 |
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