Google 改进 SynthID 检测器并全球开放，支持所有合作伙伴水印
Google rolls out improved SynthID AI content detector, now available globally
Google 宣布 SynthID 检测器现已支持所有合作伙伴的水印，并上线 SynthID.com 网站，任何人都可以直接检测内容是否带 AI 水印。此前外部用户只能通过 Gemini 检测，且旧检测器只识别 Google 自家的 SynthID，ChatGPT 图片等带水印内容无法被识别。
Every piece of AI content from Google's Gemini models has a hidden SynthID label, which makes it very difficult to pass the content off as authentic. SynthID has also gotten buy-in from other major AI players, but actually checking for those invisible watermarks has been a convoluted process. It's going to be a little easier going forward, though. Google has announced that its SynthID detector now supports watermarks from all its partners, and it's available for anyone to use on a new dedicated website.
SynthID is an invisible signal encoded in the pixels of AI-generated images and videos, and in the waveform of AI audio. Google says Gemini alone has integrated SynthID with over 180 billion images and videos, plus 240,000 years of audio. Until now, the only way for those outside of Google's trusted tester program to check for SynthID was to ask Gemini. This is rather clunky, and the model's output could sometimes be confusing when you just wanted a simple "yes" or "no."
Now you can cut Gemini out of the loop. Starting today, you can go to the new SynthID.com website to check a piece of content for an AI watermark. A major limitation of Google's previous detector was that it only checked for Google's version of SynthID. Even though ChatGPT images, for example, have SynthID, they wouldn't be flagged in Google's detector. That's no longer a problem.
来源：Ars Technica：AI · arstechnica.com