01 · Product name
SynthID Detector
A Google-hosted check for SynthID watermarks.
Published by Google.
In short
SynthID Detector is the watermark check at synthid.com. On 20 Oct 2026 its terms said the service is hosted by Google. The DeepMind page titled Google SynthID said Google launched the detector in 2025 and that it checks media from Google or partners including OpenAI, NVIDIA, Kakao, and soon, Apple. The detector page said it is not a general AI detector. No dollar price was printed. Metadata and files is the nearest category, and the fit is weak: this job is a watermark check, not an EXIF read.
Product pricing strategy
02
Free
No page opened on 20 Oct 2026 printed a dollar, euro, or pound price for SynthID Detector. The detector is presented as a portal you open in the browser. The terms mention daily usage quotas and say Google may suspend access, but they do not print a quota number or a paid tier. That absence is not a free-for-all beyond the terms, and it is not a hidden enterprise price. DeepMind's page offers the detector to anyone after an earlier journalist test, and it does not show a checkout. Do not copy a Gemini subscription onto this portal. The Google sign-in path described in the privacy notice is an account control, not a rate card. If a later page prints a price, cite that page on its own.
Utility and features
03
The detector page is an upload form for a file, with image, video, and audio indicated as the media types. The terms on that page call it the Universal SynthID Detector portal and say the service is hosted by Google and governed by the Google Terms of Service. A separate Apple sentence on those terms is about signing in with a third-party account, such as Apple. That is not the partner list. The partner list quoted here is the DeepMind page's sentence naming OpenAI, NVIDIA, Kakao, and soon, Apple. The detector page's own text said watermarks are added across products from the companies shown above the paragraph, and that the service can only detect media from those companies. Logo labels that were not in the extracted text are not added here.
- Hosted by Google. The detector terms said the service is hosted by Google. The DeepMind page titled the project Google SynthID and said the detector launched in 2025.
- Not a general detector. The detector page said it only detects media from the companies that adopted the watermark. A miss is not proof of a human author.
- No price and no upload. Neither page printed a dollar amount. The filed frames are the upload form and the notes under it. No file was sent.
The privacy notice says uploaded media is processed and then the original files are deleted, and that a signature used for quota enforcement is deleted after 24 hours. No file was uploaded for this listing, so those sentences are the notice, not an observation of a deletion. The terms also forbid using the service to break or bypass the watermark and forbid turning the page into an automated API. This listing does not describe either path. No dollar amount appeared on the detector page or the DeepMind page.
- 1
Quote the Google hosting line from synthid.com and the partner line from the DeepMind page as two sources.
- 2
Upload a file only under the portal's terms. This listing did not, and it does not explain how to weaken a watermark.
- 3
Read a detection as a watermark finding, not as the identity of a person.
Caveats
04
The detector page says this is not a general AI detector. A file with no SynthID watermark can still have been produced by a model, edited, or captured from a screen. A hit means the detector reported a watermark it knows. It does not name the person who saved the file.
Ownership is two sourced sentences. synthid.com says the service is hosted by Google. The DeepMind page says Google SynthID and that Google launched the detector in 2025. The category Metadata and files does not name watermark verification. The mismatch is stated in the answer rather than papered over with a new category. No file was uploaded, so no detection result is claimed. The terms' ban on bypassing the watermark is a limit, not a method.
Screenshots
05
Potential use cases
06
- Ownership is about to be stated without a page. On 20 Oct 2026 the terms at synthid.com said the service is hosted by Google. The DeepMind page titled Google SynthID said Google launched the SynthID Detector in 2025 and named partners including OpenAI, NVIDIA, Kakao, and soon, Apple. An Apple sentence in the detector terms is about third-party sign-in, not that partner list. Quote the page you mean.
- A missing watermark is about to be briefed as proof a person made the file. The detector page said it is not a general AI detector and that it can only speak to media from the companies that adopted the watermark. No file was uploaded here, so no detection result exists to cite. No dollar price was printed.
- Metadata and files is the nearest category and a weak fit, because the job is a watermark check rather than an EXIF read. The terms also forbid using the portal to break the watermark or to turn it into an automated API. This listing does not describe those paths. The filed frames stop on the upload form.
Hard cases
The case where the first result is easy to over-read.
The two Apple sentences are merged
The detector privacy notice uses Apple as an example of a third-party sign-in. The DeepMind page says soon, Apple in a list of watermark partners. A memo that says Apple already signs media, or that the sign-in line is the partner program, has joined two pages. Keep them apart.
Practitioners using it
Posts on X from people describing a concrete use. The quote is the post. Likes and reposts are the counts saved with it, not a live total. A label marks a creator, a maintainer, a vendor, a partner, a data partner, or an investor.
น้องควายแคระเป็นรูปเอไอไหม? ลองตรวจด้วย SynthID Detector พบว่าเป็นภาพมาจาก OpenAI...🥹 และสามารถเอาตรวจต่อได้อีกเพื่อความมั่นใจที่ OpenAI Verify ก็พบเช่นกันน แต่ SynthID พวกนี้ตรวจไม่เจอก็ไม่ได้แปลว่าไม่เป็นรูปเอไอ บางทีเอาไปบิดรูปเยอะๆ แก้ต่อเยอะๆ ก็หลุดได้เหมือนกัน… https://t.co/7pAtdKB4cQ pic.twitter.com/64aNXBuw1H
Google just gave everyone its AI deepfake detector. SynthID Detector is free now. One test caught 6 of 8 watermarked fakes. But 'not detected' doesn't mean real. Remember that. pic.twitter.com/NWlTVXc7Vq
Questions
Is SynthID Detector free?
No dollar price was printed on synthid.com or the DeepMind SynthID page on 20 Oct 2026. The terms mention daily quotas and do not print a quota number or a paid plan.
Who operates it?
The detector terms say the service is hosted by Google. The DeepMind page calls it Google SynthID and says Google launched the detector in 2025. Both sentences are from those pages.
Citations
07
Titled sources. These public pages are what the quotes on this listing come from.
Product
SynthID Detector
https://synthid.com/Documentation
Google SynthID at DeepMind
https://deepmind.google/models/synthid/