Who makes SynthID Detector?

SynthID Detector is made by Google.

Does SynthID Detector work in the EU?

Unverified. No explicit evidence found; pages say the detector is open to everyone but give no supported-countries list or EU exclusion. Last verified 14 Nov 2026.

How much does SynthID Detector cost?

Free. Detector described as open to everyone; no pricing given on the provided pages. SynthID Text reference code is free under Apache-2.0. Licence: Apache-2.0 (SynthID Text reference code only).

Where was SynthID Detector shown?

In 1 creator video by Matt Wolfe. Most recently by Matt Wolfe on 9 Oct 2026, at 29:33 in "AI News: Haiku-5.5, Visual ChatGPT, Grok's New Trick, and more!".

SynthID Detector

by Google

Try it Website Docs GitHub

Google's verification portal for checking whether images, video, audio or text carry a SynthID AI-content watermark.

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Updated 14 Nov 2026EU status checked 14 Nov 2026Last shown 9 Oct 2026

SynthID Detector at a glance

What is SynthID Detector?: SynthID Detector is an app from Google. Google's verification portal for checking whether images, video, audio or text carry a SynthID AI-content watermark.
Who makes SynthID Detector?: SynthID Detector is made by Google.
Does SynthID Detector work in the EU?: Unverified. No explicit evidence found; pages say the detector is open to everyone but give no supported-countries list or EU exclusion. Last verified 14 Nov 2026.
How much does SynthID Detector cost?: Free. Detector described as open to everyone; no pricing given on the provided pages. SynthID Text reference code is free under Apache-2.0. Licence: Apache-2.0 (SynthID Text reference code only).
Where was SynthID Detector shown?: In 1 creator video by Matt Wolfe. Most recently by Matt Wolfe on 9 Oct 2026, at 29:33 in “AI News: Haiku-5.5, Visual ChatGPT, Grok's New Trick, and more!”.

Sources: the vendor's own pages (linked above) and creator videos at the linked timestamps. EU status is information, not legal advice; see how we check.

About

SynthID is Google DeepMind's watermarking technology for AI-generated content. It embeds imperceptible watermarks into images, video, audio and text produced by Google generative products, and can later detect them. Image and video watermarks are designed to survive cropping, filters, frame-rate changes and lossy compression. Audio watermarks cover output from Lyria and NotebookLM podcast generation, and text watermarking covers Gemini app and web output by adjusting token probability scores.

The SynthID Detector is a verification portal launched in 2025, first tested with journalists and media professionals and since opened to everyone. Users upload an image, video or audio file to check whether it was made with AI from Google or partners including OpenAI, NVIDIA and Kakao, with Apple listed as coming. Detection of Google watermarks is also available by asking Gemini, Search or Chrome about an uploaded file.

It only identifies content carrying SynthID watermarks, so it cannot tell whether content from other generators was AI-made. A separate open-source reference implementation, SynthID Text (Apache-2.0), is on GitHub with a Colab notebook using Gemma and GPT-2. Google states it is for research and reproducibility, not production use.

Key features