Seams and stitching
AI models render stitch lines as a smooth stroke. Zoom into the hem, the collar and the pockets: real stitching has uneven stitches and loose threads.
Funda AI Checker
Is this Funda photo AI?
Paste a Funda listing URL. This page fetches the property photos and shows an AI-signal score per photo — free, no account, nothing to install.
- Works with any Funda URL:
/detail/koop/.../12345678/ - Meant as a signal, not as legal proof
Paste a Funda URL or upload photos to start.
Recent checks
Stored on this device only; no photo or personal data is sent apart from the URL you provide.
What the score can tell you.
The detector looks for patterns that are common in AI-generated or heavily edited images. It does not prove a seller did anything wrong — when in doubt, ask for extra photos or videos.
- High score = elevated risk of AI-synthetic content
- Low score = no strong AI signals (still no guarantee it is "real")
- Use the score to ask further questions, not as a final verdict
Why AI photos on Funda are a problem
What goes wrong, and why the eye misses it.
Sellers put AI images on branded clothing, sneakers and bags they do not own. The photo shows a perfect example; what arrives is a replica, a different model, or nothing.
A generative model has no model of the world: it predicts what a photo of this kind of thing usually looks like. That makes AI images convincing at a distance and inconsistent in the detail — the opposite of a real photo, which is messy at a distance and holds up close. Anyone scrolling a list quickly sees the convincing version.
The checker inverts that order. Every one of the property photos is scored separately for patterns associated with synthetic generation, so you know which photo is worth zooming into before you message a seller or place a bid.
Spotting it yourself: four things to check
Zoom all the way in and work through these four. Together they cost half a minute.
Labels and prints
Letters on care labels, logos and prints tend to blur into each other or repeat. A label you cannot read at full zoom is a strong signal.
Zips and buckles
Zip teeth that do not run through, a buckle whose strap goes nowhere, a shoelace that disappears behind the tongue and never comes out.
Background
Second-hand photos are taken at home: a cluttered floor, a doorframe, lamp shadow. A clean studio backdrop from a private seller does not match the story.
How to use the Funda AI Checker
- Paste the link or upload the photos. The page fetches the property photos; uploading works too when the link is restricted.
- Read the score per photo. The average across a listing is not what matters; the photo that stands out is.
- Zoom into what the score points at. Seams, letters, reflections, edges.
- Ask one verification question. Ask for a video of the item in hand, with a note showing the date. An AI image cannot be reproduced on request.
A score starts a conversation, it does not end one. The detector cannot see who made a file, with which tool, or whether the seller is acting in good faith.
When it goes wrong
Funda: report the item using the button on the listing itself; they remove listings with stolen or generated images.
Keep the listing URL and screenshots before you report: listings with generated imagery often disappear within a day, evidence included.
Frequently asked questions
Is the Funda AI Checker free?
Yes. No account, no daily limit and no payment method. The check runs on the same detector as the rest of this site.
Does a high score prove the Funda photo is AI?
No. The result is a warning signal, not proof of origin. A high score means the photo carries patterns common in generated or heavily edited imagery. Use it to ask sharper questions.
What does a low score mean?
That no strong AI signals were found. It is not a guarantee the photo is real: a compressed, cropped or forwarded photo loses signal. When in doubt, the follow-up question to the seller still stands.
Are my photos stored?
No. Images are processed to compute the score and are not used for model training by default. The history under the checker lives in your own browser only.
How accurate is the detector on Funda imagery?
Measured recall and false-warning rate are published with sample size and interval on the accuracy page. The newest generation of imagery is the weakest spot and that figure is stated separately.