Google’s deepfake detector system used to debunk McConnell hoax pic

Google's SynthID system successfully debunked a high-profile AI-generated hoax image of Senator Mitch McConnell, marking a significant win for anti-deepfake technology. The image, which showed McConnell covered in tubes in a hospital bed, was widely circulated on Reddit and X before fact-checking site Snopes confirmed it contained the SynthID watermark, proving it was fake. The incident comes amid intense speculation about McConnell's health following his hospitalization in June. SynthID, launched at Google's I/O conference in 2025, works as an invisible signature embedded in images that survives even when screenshotted across multiple platforms. However, the system's main limitation is that it only works when image-generation tools actively participate in the program. While Gemini models have included the watermark since launch, and OpenAI joined in May 2026, Anthropic does not participate. Users can check for the watermark using Gemini or OpenAI's public verification tool.