Google SynthID Detector Simplifies Watermark Detection and Expands Support to Other AI Providers

Google DeepMind has made the SynthID Detector tool globally available, a technology designed to identify AI-generated content created with tools from partners like OpenAI, NVIDIA, and Kakao. SynthID Detector simplifies the process by allowing users to upload various files like images, audio, or video for cross-partner verification, including OpenAI, NVIDIA, Kakao, and soon Apple.

The tool delivers a simple yes or no result, but Google clarifies that a negative outcome doesn't guarantee the content isn't AI-generated, as SynthID only detects media from the listed partners. SynthID technology is a cryptographic watermarking solution applied to images, audio, video, and text. Google DeepMind launched SynthID in 2023, and it was acknowledged in TIME's Best Inventions of 2026 list for its innovative approach to AI-content detection.

However, critics argue that SynthID's effectiveness is questionable due to high false positive rates in videos created by its own models. Others suggest that watermarking, while a useful deterrent, may not be the most scalable solution for verifying AI-generated content, as it can be lost during content uploads and cannot be preserved in screenshots.