Introducing SynthID Bio

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September 30, 2026 SciencePushmeet Kohli, David Stutz, Ali Cowen-Rivers and Jeremy RatcliffProof of concept for watermarking AI-generated proteins while preserving biological function. Today, we’re introducing SynthID Bio to bring watermarking technology to synthetic biology. Lower indicates stronger binders. For protein folding, SynthID Bio fine-tunes a small part of AlphaFold 3’s diffusion network, building the ability to watermark directly into the model’s weights. As a part of the submission process, SynthID Bio could help ensure synthetic entries are properly labeled or flagged for further review.

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