What makes the best AI detectors stand out?
The best AI detectors cover your content type, explain why they reached a verdict and say clearly where they can fail. Everything else, from the interface to the integrations, comes after those three.
Every detector makes mistakes in both directions. It can flag a human text as AI or let a generated image pass as real. The hardest cases are compressed, cropped, edited or very short content, and texts written by non-native speakers. Our guide on whether AI detectors are accurate explains why.
How do you choose the best AI checker? 8 criteria
Use these eight criteria to compare any two tools. Score each one against your own needs, not against a generic ideal.
- 01Content types covered. Text only, or also images, video, voice, documents, code and websites? If you check more than one format, a single tool saves you from comparing scores that mean different things.
- 02Explanation versus bare percentage. A single AI percentage, with nothing behind it, is hard to act on. Look for the signals behind the verdict, the passages or regions that triggered it, and a plain-language explanation.
- 03Provenance reading. Some files carry C2PA content credentials or metadata naming the AI tool that made them. A detector that reads this first can give a clear reason instead of a guess. See what C2PA content credentials are.
- 04Stated limits. A trustworthy tool tells you which content it handles badly: short texts, heavy edits, compressed files, non-native writing.
- 05Privacy and retention. How long are uploads kept? Are they used to train models? Which subprocessors handle them?
- 06Languages. Text detectors often work best in English. Check the languages the vendor lists for detection, not only for the interface.
- 07API and integrations. Schools may need an LMS plugin; platforms may need an API; editors may want a browser extension.
- 08Price model. Tools charge per credit, per word, per seat or per institution licence. Pick the model that matches how often and how much you check.
Best AI detection tools at a glance (October 2026)
Well-known AI detection tools fall into three groups: text detectors for education and publishing, multi-format platforms for moderation and fraud teams, and broad consumer tools. The table below describes each one only as its official website did in October 2026. It is not a ranking, and it contains no prices or accuracy figures.
| Tool | Content types (per its site) | Main audience (per its site) | Notable features (per its site) |
|---|---|---|---|
| GPTZero | Text | Educators, students, writers, businesses | Plagiarism check, writing replay, Chrome extension, Google Classroom and Canvas, API |
| ZeroGPT | Text, images, video | Educators, businesses, creators | Plagiarism checker, batch file upload, PDF reports, API, writing tools |
| Originality.ai | Text; a separate free image tool | Publishers, agencies, marketers, schools | Plagiarism and fact checking, website scanner, browser extensions, Moodle, API |
| Copyleaks | Text, images, video, audio; source code checks | Education, enterprise, media and publishing | Plagiarism checker, LMS integration, browser extension, WordPress integration, API |
| Turnitin | Student and research writing | Educational institutions, researchers, publishers | Similarity checking, AI writing detection inside the LMS |
| Hive | Images, video, audio; text via its Chrome extension | Platforms, trust and safety, enterprises | Moderation models, deepfake detection, REST API, on-prem option |
| Sightengine | Images, video, voice, music | Moderation teams, marketplaces, dating and creator platforms | Deepfake and face-swap detection, moderation, developer API |
| TruthScan | Images, documents, video, voice, text | Fraud and trust teams, KYC, enterprises, individuals | Image heatmaps, document forgery checks, APIs, Chrome extension |
| AnyFact | Photo, video, voice, text, document, code, website | Anyone who needs a first check, with a free plan | 3-level verdict with explanation, provenance first, PDF report |
Offers change often. Before you buy, open each vendor’s site and confirm the features you need are still listed for the plan you would use.
Which AI detector fits your use case?
The right tool depends on who reads the result and what they do next. Here is how the categories line up with common needs.
Best AI text detector for teachers and schools
Schools usually need LMS integration, plagiarism checking and a record of the writing process. GPTZero, Turnitin, Copyleaks and Originality.ai all describe education features on their sites. For a policy-first approach, read our page for teachers and schools.
Best AI content detector for publishers and SEO teams
Publishers often want bulk scans, site-wide checks, plagiarism detection and team accounts. Originality.ai and Copyleaks both name publishers as an audience. If you need to review a whole site, including its images, an AI website checker is the relevant format.
AI detector for images, video and text in one place
Journalists, fact-checkers and fraud teams receive every format. Multi-format tools save you from juggling several accounts and score scales. Hive, Sightengine, TruthScan, Copyleaks, ZeroGPT and AnyFact each cover more than text, with different mixes.
Detection APIs for platforms and moderation
If you process user uploads at volume, you need an API, not a web form. Hive, Sightengine and TruthScan describe developer APIs built for this. AnyFact has no public API yet, so it is not the right choice here today.
Where does AnyFact fit among the best AI detection tools?
AnyFact is a good fit when you need to check several content types in one place and want a verdict you can explain to someone else. It is not the right fit if you need an LMS plugin, plagiarism checks or an API.
Strengths, stated as facts about the product:
- Seven detectors in one account: photo, video, voice, text, document, code and website.
- Provenance first: every file is checked for C2PA content credentials and EXIF/XMP metadata before any model scores it.
- A 3-level verdict (probably human, uncertain or probably AI), with “mixed” for text, documents and websites when only some parts look generated. Never a bare percentage.
- Every verdict comes with its signals, a plain-language explanation in English, French or Arabic, the limits of the method and a downloadable PDF report.
- Uploaded files are deleted after 30 days.
Weaknesses, stated just as plainly:
- AnyFact is new, and its detectors are in beta. Pro costs $15 a month for 1,000 credits, and Business $49 a month for unlimited checks under a fair-use limit.
- There is no published benchmark yet, so you should run your own tests.
- The code detector is the least reliable of the seven and is marked beta.
- No LMS integration, no plagiarism checker, no Chrome extension and no public API yet.
- Text detection works in English, French and Arabic only, with at least 300 characters.
AI Text Detector · Free plan
Try the AnyFact text detector on a sample you already know the answer to.
How to test any AI detector yourself
The only comparison that counts is the one you run on your own content. This method works for any tool, including ours.
- 01Build one sample set and use it for every tool. Same files, same order, same day.
- 02Include human samples you are sure of: your own writing, photos from your phone, a voice memo. These measure false positives, the error that hurts people most.
- 03Include AI samples from several generators, not just one.
- 04Include edited samples: AI text you rewrote by hand, a cropped and recompressed AI image, a human text polished by a grammar tool. These are the hard cases.
- 05Include texts by non-native writers if your audience includes them.
- 06Record each verdict and whether the tool explained it. Note any human sample flagged as AI.
- 07Repeat a few samples a week later to check the result is stable.
Weigh the false positives most heavily. A tool that misses some AI content is a nuisance; a tool that accuses a real person is a problem.
What are the red flags when comparing AI detection tools?
Be wary of any detector that asks you to trust a number without telling you how it got there. These warning signs apply to every vendor, including us.
- A single percentage with no passages, regions or signals behind it.
- Accuracy claims with no dataset, method or date attached.
- No page describing what the tool handles badly.
- No clear answer on how long your uploads are kept.
- Copy that encourages you to punish someone based on the score.
For images specifically, our guide on how to tell if an image is AI-generated lists the visual checks you can run without any tool.
AI Photo Detector · Free plan
Check an image with provenance reading and a listed set of visible anomalies.
Frequently asked questions
What is the best AI detector?
There is no single best AI detector for everyone. Teachers grading essays, editors reviewing freelance work and moderation teams screening uploads need different features. Pick the tool that covers your content type, explains its verdict and states its limits, then test it on your own samples.
Is there an AI detector for images, video and text in one tool?
Yes. Several tools now cover more than text, including Hive, Sightengine, TruthScan, Copyleaks, ZeroGPT and AnyFact, each with a different mix of formats. AnyFact covers seven: photo, video, voice, text, document, code and website.
Are AI detectors accurate enough to prove someone used AI?
No. A detector result is an indication, not proof. Every tool can be wrong in both directions, especially on short, edited or compressed content and on texts by non-native writers. Use the result to decide what to check next, never as the only basis for a sanction.
Do AI detectors keep the files I upload?
It depends on the tool, so read each vendor’s privacy terms. AnyFact deletes uploaded files after 30 days and lists the services that process them: Modal for compute, Supabase for storage and Anthropic’s Claude for the second opinion and explanation.
Which AI detectors have an API?
According to their websites in October 2026, GPTZero, ZeroGPT, Originality.ai, Copyleaks, Hive, Sightengine and TruthScan all offer an API. AnyFact does not have a public API yet.