SynthID alternatives
If what you really want is to check a Google image without leaving the app you already use, or you work with OpenAI's tools, these two are where I'd look.
The order is mine: how well each one covers what you want from SynthID. Prices checked on the official site on October 5, 2026.
2 of 2 alternatives
| Rank | Tool | Best for | Free? | Paid from |
|---|---|---|---|---|
| The original | SynthID The original | Google DeepMind's AI watermark and its free Detector: checks images, video and audio from Google, OpenAI, NVIDIA and Kakao. Needs a sign-in. | Yes | — |
| #1 |  Gemini Google · Personal assistant | Checking Google images inside the chat | Free with limits | $4.99/mo |
| #2 |  ChatGPT OpenAI · Personal assistant | Your ChatGPT account also works for the Detector | Free with limits | $8/mo |
When to pick each one
-
If the image was probably made with Google AI and you already use Gemini: upload it to the chat and ask whether it was created or altered by Google AI.
See details -
If the images you need to check come from OpenAI's tools: OpenAI is one of the SynthID partners, so the Detector can recognize them, and your ChatGPT account is enough to sign in.
See details
