On May 20, Google’s DeepMind introduced a new tool to help people identify whether content, such as text, images, audio, or video, was made using its artificial intelligence (AI) systems.
The tool, called SynthID Detector, looks for hidden watermarks built into content created by Google’s AI models. These watermarks can be picked up by the tool to show that something was made with AI.
This launch comes at a time when educators are dealing with more students using AI to complete assignments. According to a report from New York Magazine, a professor at Santa Clara University asked students to write personal reflections, only to discover that one had used ChatGPT instead.

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Google first introduced SynthID in August 2023 to detect AI-generated images. SynthID Detector expands that idea to audio, video, and written content.
It works across Google’s AI tools, including Imagen, Lyria, and text tools inside NotebookLM and Gemini AI.
In the announcement, Google explained:
For text, SynthID looks at which words are going to be generated next, and changes the probability for suitable word choices that wouldn’t affect the overall text quality and utility.
They added that if a passage includes many of these chosen word patterns, it will likely be detected as AI-written.
Meanwhile, a journalist at Android Authority recently discovered that Google’s Gemini AI works during flights even without paid Wi-Fi. How? Read the full story.
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