AI PHOTO · CHOOSING A TOOL
How to Choose the Best AI Image Detector
No detector is right every time. The useful question is which one shows its reasoning, reads provenance data and tells you when it is unsure.
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AI Photo Detector
Open in betaWhat you need
Upload an image or paste an image link
JPG, PNG, WebP or HEIC, up to 20 MB.
At a glance
C2PA first
Content credentials and metadata are read before the detector runs; a second model reviews borderline cases.
AnyFact method
3 levels
Probably human, uncertain or probably AI — never a bare percentage — with the reasons and the limits of the method.
AnyFact method
10 credits
Free every month with an account, no credit card. Uploaded files are deleted after 30 days.
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Why detectors disagree — and what that tells you
Detectors are trained on images from specific generators. When a new model appears, or when an image is compressed, cropped or edited, their scores can drift. Two tools giving different answers on the same image is common.
That is why a bare percentage is not enough. A useful result says what was checked — content credentials, metadata, visual anomalies — and how confident the method really is.
AnyFact uses an open-source classifier, reads C2PA content credentials and metadata first, and asks a second model to review borderline cases. We do not claim to be the most accurate tool; we aim to be the clearest about what a result means.
Does this sound familiar?
- You are comparing tools for a newsroom, a school or a moderation team.
- Two detectors gave you opposite answers on the same image.
- You need results you can explain to someone else.
Here's what we check
Upload or paste a link
JPG, PNG, WebP or HEIC, up to 20 MB.
Provenance, then detection
Content credentials and metadata are read first; if they do not settle it, the classifier scores the image and visible anomalies are listed.
A verdict in three levels
Probably human, uncertain or probably AI — never a bare percentage — with a short explanation and the limits of the method.
How to read the result
The signals point to a person. It is not a guarantee: a careful generator or heavy editing can leave few traces.
The signals disagree or are too weak. We say so rather than guess, and list what was found.
The signals point to generation. It is an indication, not proof — check the context before acting.
Sample layout. Real reports name the signals that were checked and the limits of the method.
How to evaluate the best AI image detector for your needs
The best AI image detector is the one whose results you can check, explain and act on in your own situation. Score each tool against the same criteria.
| Criterion | What to look for | Red flag |
|---|---|---|
| Provenance | Reads C2PA content credentials and EXIF/XMP metadata, and says what it found | Ignores metadata entirely |
| Explanation | Names the signals behind the verdict | Returns only a number |
| Uncertainty | Has a middle outcome and uses it | Always sounds certain |
| Stated limits | Documents the hard cases: compression, crops, edits | Promises near-perfect results |
| Inputs | Accepts the formats and links you actually receive | Only one format, or files too small for real photos |
| Privacy | States how long files are kept | No retention information |
| Records | Lets you export a report | Nothing to keep or share |
| Feedback | Lets you flag a wrong result | No way to report an error |
Which AI image detector is most accurate? Test it on your own images
No public figure settles that question for your case: results depend on the generators, the compression and the kind of images you deal with. A small test set of your own tells you more.
- 01Collect original photos you took yourself, straight from your phone or camera.
- 02Add generated images from the tools your audience is likely to come across.
- 03Add degraded copies of both: screenshots, crops and versions re-shared through a messaging app.
- 04Run every image through each tool and note the verdict and the reasons it gives.
- 05Study the mistakes, not just the hits. Decide which error costs you more: a real photo flagged as AI, or a generated image that passes.
- 06Repeat the test when new generators appear, because detectors can drift.
AI image detector comparison: where AnyFact fits, and where it does not
AnyFact is built for people who need to understand and explain a result, not just collect a score. That makes it a good fit for some uses and a weaker one for others.
| AnyFact is a good fit when | Another tool may suit you better when |
|---|---|
| You want provenance read before any model runs | You need a single numeric score to feed an automated pipeline |
| You need the reasons and the limits written down | You only care about a yes or no and never need to explain it |
| You also check text, voice, video or documents | You need to screen large volumes of images automatically, with a tool built around that workflow |
| You want explanations in English, French or Arabic | You need another language for the explanation |
Our comparison of AI detectors looks at other tools, what they cover and who they are for, including the cases where they are the better choice.
How to choose an AI image detector for a team
For a team, the most important choice is what each verdict triggers. Agree on it before the first difficult case, so results are handled the same way every time.
| Verdict | Suggested team action |
|---|---|
| Probably AI, with a provenance reason | Apply your policy for generated images, and record the reason from the report. |
| Probably AI, from the classifier | Send for human review with the listed anomalies; ask the uploader for the original if relevant. |
| Uncertain | Look for the source or a better copy; do not act on the image alone. |
| Probably human | Proceed, while checking context the detector cannot see. |
Moderation teams usually add a step for appeals. Our page on trust and safety moderation shows how to fit a detector into that workflow.
Before you check
Is the result proof that a content was made by AI?▼
No. It is an indication, not proof. Detectors can be wrong in both directions, especially on compressed, cropped, edited or very short content. Use the result to decide what to check next, not as a final judgement on anyone.
Why no percentage?▼
A single percentage suggests a precision no detector has. You get one of three levels — probably human, uncertain or probably AI — with the signals behind it and the limits of the method.
How does the analysis work?▼
When the content carries provenance data, such as C2PA content credentials or metadata, we read it first. Then an open-source detector scores the content. When the score is borderline, Claude reviews it as a second opinion, and the result is explained in plain words.
What happens to my files?▼
They are processed to run your analysis — including, for borderline cases, a review by Claude, Anthropic’s model — and deleted after 30 days.
What does it cost?▼
There is a free plan: a free account gets 10 credits every month, with no credit card. Pro ($15 a month) gives 1,000 credits a month; Business ($49 a month) gives unlimited Business Checks and AI checks under a fair-use limit.
If an image has no content credentials, does that mean a person took it?▼
No. Most social networks strip metadata on upload, and many generators add none. Missing credentials prove nothing either way; they are one signal among several.
Should I run an image through several AI detectors?▼
It can help, as long as you compare their reasons and not just their verdicts. If the tools disagree, treat the image as uncertain and look for its source.
Is a detector that never says “uncertain” better?▼
No. Some images genuinely cannot be settled from the pixels alone. A tool that always gives a firm answer is guessing in those cases without telling you.
What is a false positive in AI image detection?▼
It is a real photo flagged as AI-generated. A false negative is the opposite: a generated image that passes as real. Which error matters more depends on what you do with the result, so decide that before choosing a tool.
See how AnyFact explains a result
What you need
Upload an image or paste an image link
Free plan — 10 credits every month, no credit card.
Each result is an indication, not proof.
Files deleted after 30 days.
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