Google brings SynthID image verification to the Gemini app

Google now lets anyone check whether an image was generated or edited by its AI tools directly inside the Gemini app, using its SynthID watermarking technology. The feature rolls out starting today and answers questions such as "Was this created with Google AI?" or "Is this AI-generated?"

The stakes are straightforward: generative media is becoming both increasingly prevalent and high-fidelity, and Google says it is deploying verification tools so users can more easily determine whether the content they encounter was created or edited with AI. The company frames the launch as part of a long-running investment in providing context about information people see online.

The mechanics are simple. A user uploads an image to the Gemini app and asks whether it was AI-generated. Gemini checks for the SynthID watermark — digital signals embedded imperceptibly into AI-generated content — and, according to Google, "will use its own reasoning to return a response that gives you more context about the content you encounter online."

Google introduced SynthID in 2023. Since then, the company says, over 20 billion AI-generated pieces of content have been watermarked using the technology. Google has also been testing a separate verification portal, the SynthID Detector, with journalists and media professionals.

C2PA metadata arrives this week

Alongside the in-app verification, Google is expanding its embrace of industry provenance standards. Images generated by Nano Banana Pro — the image model also known as Gemini 3 Pro Image — in the Gemini app, Vertex AI and Google Ads will carry C2PA metadata embedded, a rollout Google says begins this week. The metadata provides further transparency into how the images were created, and Google plans to expand the capability to more products and surfaces in the coming months.

Google sits on the steering committee of the Coalition for Content Provenance and Authenticity (C2PA), the body behind the content-credentials standard adopted across the media and technology industries. Through that role, the company says it is collaborating with industry partners to advance content transparency and authenticity standards across its product ecosystem, including YouTube, Search, Pixel and Photos.

Over time, Google says it will extend its verification approach to support C2PA content credentials — meaning users will be able to check the original source of content created by models and products outside Google's own ecosystem, not just Google-made images carrying SynthID.

What comes next

The Gemini launch builds on Google's existing work giving context about images in Google Search and on research efforts such as Backstory, a project from Google DeepMind. The company says it will continue investing in ways for users to determine the origin and history of online content.

Video and audio are next. Google says SynthID verification will soon expand beyond images to support additional formats, and the capability will reach more surfaces, including Search.

The launch signals where provenance tooling is heading: watermark checks moving from specialized portals into mainstream consumer apps, and single-vendor watermarking converging with the cross-industry C2PA standard. If Google follows through on verifying third-party content credentials, Gemini could become a general-purpose authenticity check rather than a check on Google's own models alone.