Google 推出改进版 SynthID 检测器并全球开放
Google rolls out improved SynthID AI content detector, now available globally
Google 宣布其 SynthID 检测器现已支持所有合作方嵌入的水印，并在新网站 SynthID.com 上向所有人开放使用。SynthID 是编码在 AI 生成图像、视频像素和音频波形中的隐形信号，Google 称仅 Gemini 就已为超过 1800 亿张图像和视频、以及 24 万年时长的音频集成该水印。
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