Google DeepMind Publishes SynthID Bio in Nature, Watermarks AI-Designed Proteins Without Impairing Function

Google DeepMind released SynthID Bio, a family of watermarking methods that embed imperceptible, verifiable signatures directly into AI-designed protein sequences and predicted 3D structures. Lab tests showed watermarked designs matched the performance and natural diversity of unwatermarked versions. The company positions it as a provenance layer to strengthen biosecurity and gene-synthesis screening.