AI Watermark Center
Gemini research

Gemini watermark detector

How to check Gemini and Nano Banana provenance: Google’s official verification for SynthID versus AI Watermark Center’s local Content Credentials inspection. We do not detect SynthID.

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There is no AI Watermark Center SynthID detector. AI Watermark Center does not currently detect SynthID. Checking a Gemini or Nano Banana image means using Google’s tools for SynthID, and using this site only for supported embedded Content Credentials.

Google verification

Signed-in Gemini Apps users can upload one image, video, or audio file (size and duration limits apply) and ask whether Google AI created or edited it. Gemini Help lists SynthID and Content Credentials as two technologies in that flow. Gemini’s current media verifier identifies Google AI SynthID. It is not a universal SynthID detector for other companies.

If SynthID is detected, Help says all or part of the image or video was created or edited by Google AI. If it is not detected, Help says the file may still have been created by another AI system. Uncertain results can happen for simple content or small edits.

Google DeepMind’s separate SynthID Detector portal remains an early-tester waitlist as of 16 August 2026. That is not the same product surface as signed-in Gemini Apps verification.

A result from Google’s verifier is a provider-verified result, not an independently generated AI Watermark Center detection.

Official Google verification (opens in a new tab)

AI Watermark Center

This site inspects supported embedded C2PA in JPEG, PNG, and WebP in the browser. It does not upload your image to Google. It does not detect SynthID. Do not label the inspector “Detect SynthID.”

Inspect Content Credentials

Sources

  1. Verify AI-generated images, videos, and audio — Gemini Apps Help

    Accessed August 16, 2026.

    Gemini user-facing verification for image, video, and audio. SynthID identification is Google AI only; Content Credentials inspection is a separate layer.

  2. SynthID — Google DeepMind

    Accessed August 16, 2026.

    SynthID modalities (image, video, audio, text). Gemini Apps can check Google AI media. A separate SynthID Detector portal remains an early-tester waitlist, not a general-availability consumer product, as of this access date.

  3. Start building with Nano Banana 2 Lite and Gemini Omni Flash — Google

    Published June 30, 2026. Accessed August 16, 2026.

    Defines the current Nano Banana family (legacy, 2 Lite, 2, Pro) and states Nano Banana 2 Lite and Gemini Omni use SynthID. Mentions verification through the Gemini app, Gemini in Chrome, or Search.

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