Google DeepMind is making its AI text watermark open source

SynthID introduces additional information at the point of generation by changing the probability that tokens will be generated, explains Kohli. To detect the watermark and determine whether text has been generated by an AI tool, SynthID compares the expected probability scores for words in watermarked and unwatermarked text. Google DeepMind found that using the SynthID watermark did not compromise the quality, accuracy, creativity, or speed of generated text. That conclusion was drawn from a massive live experiment of SynthID's performance after the watermark was deployed in its Gemini products and used by millions of people. Gemini allows users to rank the quality of the AI model's responses with a thumbs-up or a thumbs-down.