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Developer claims to have cracked Google's SynthID watermarking system using just 200 Gemini images and basic signal processing, though Google disputes the claim.

The Verge AI · April 14, 2026

Developer claims to have cracked Google's SynthID watermarking system using just 200 Gemini images and basic signal processing, though Google disputes the claim.

AI Summary

  • A developer named Aloshdenny claims to have reverse-engineered Google DeepMind's SynthID watermarking system and open-sourced the work on GitHub
  • The alleged exploit required only 200 Gemini-generated images, signal processing techniques, and no neural networks or proprietary access
  • The developer demonstrated how watermarks can be removed from AI-generated images or added to non-AI works, contradicting the system's security premise
  • Google disputes Aloshdenny's claims, stating the developer's assertions are inaccurate

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