AI Content Detectors

AI text detectors for content teams, publishers and educators, compared on price per 100k words, accuracy evidence and false positives. Every score comes from a documentation-and-pricing audit; tools we partner with are listed first.

Want our ranked picks with the catch for each? Read Best AI Detectors in 2026: Price, Accuracy Evidence and False Positives Compared →

Independent review. If you buy through links on this page we may earn a commission, at no extra cost to you. Tools we partner with are listed first, but that never changes a score — how we test.

Tool Best for Price from Free plan Score
1
Publishers and SEO teams that want plagiarism, grammar, readability and fact-checking in the same scan as the AI check, and that will run a second signal before acting on any single score $12.95/mo Yes 4.4/5 Visit
2
Educators, hiring managers and anyone who wants a free AI check that refills every month rather than a one-time allowance, as long as you read the Trustpilot billing complaints first $12.99/mo Yes 4.0/5 Visit
3
Teams that want image and deepfake detection bundled with AI text detection at a low promo price, and who will confirm the promo code still applies at checkout $9/mo No 3.8/5 Visit
4
Writers and teams who want a plagiarism check and an AI check from the same scan, and who will treat a single AI-detector score as one signal rather than a verdict $14.99/mo Yes 3.7/5 Visit
5
Fraud, trust-and-safety and compliance teams that need to check images, PDFs or video for AI manipulation and not just text, and who read the independent ID-verification test before trusting its accuracy claims $290/yr Yes 3.5/5 Visit
6
Teams that want a vendor whose core pitch is holding false positives low rather than a headline accuracy percentage, and that are comfortable testing on a 7-day trial since there's no standing free tier $20/mo No 4.2/5 Review
7
Agencies, publishers and schools that need AI detection across many languages, a bundled plagiarism checker, an API, and LMS integrations like Canvas or Moodle ~$13.99/mo No 3.9/5 Review
8
Teams that already want a grammar and writing assistant and are fine paying one flat fee instead of a metered per-word plan, as long as they don't need a plagiarism checker too $12/mo Yes 3.6/5 Review

All reviews in AI Content Detectors

Originality.ai

AI content detector bundled with plagiarism, grammar and fact-checking, priced by a monthly word allowance

4.4 Editor's pick Free tier
$12.95/mo Read review →
GPTZero

AI content detector with a monthly free word allowance, priced on volume at a rate the vendor only publishes billed annually

4.0 Free tier
$12.99/mo Read review →
Winston AI

AI and image detector with OCR bundled in, priced through a promo code that doubles the bill if it ever stops working

3.8
$9/mo Read review →
Quetext

Plagiarism checker and AI content detector sharing one monthly word pool, with an AI humanizer bundled into both paid plans

3.7 Free tier
$14.99/mo Read review →
TruthScan

Multimodal AI detector for text, images, documents and video, running one credit system across four dollar tiers

3.5 Free tier
$290/yr Read review →
Pangram Labs

AI content detector built around capping false positives, priced by a monthly word allowance with no standing free tier

4.2
$20/mo Read review →
Copyleaks

AI content and plagiarism detector with 30+ language coverage and a live Canvas LMS deal, priced through credits the vendor's own page never shows in dollars

3.9
~$13.99/mo Read review →
Sapling

Grammar assistant and AI detector bundled at a flat monthly fee, billed by characters per check instead of monthly word volume

3.6 Free tier
$12/mo Read review →

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