Simple web plans
Every plan uses the same detector. Paid plans increase document capacity and add the broader research toolkit.
Occasional checks and first-time evaluation
No account required
Regular research, editing and coursework
$84 billed once per year
One credit checks up to two sentences, rounded up. Each plagiarism check accepts up to 3,000 words.
Flexible access without an annual commitment
$14 billed every month
One credit checks up to two sentences, rounded up. Each plagiarism check accepts up to 3,000 words.
Payments are processed by Paddle. Prices are shown in USD; local taxes may be added at checkout.
Plan comparison
| Capability | Free | Yearly | Monthly |
|---|---|---|---|
| Characters per check | 15,000 | 1,000,000 | 1,000,000 |
| AI detection | Up to 300 / day | Unlimited | Unlimited |
| Plagiarism credits | 12,000 / year | 1,000 / month | |
| Fact Checker | 125 words / check | 5,000 characters / check | 5,000 characters / check |
| AI Humanizer | Cognia 150 / Huma 150 words | Unlimited | Unlimited |
| Premium support | Included | Included |
Billing notes
The detector accepts checks up to 15,000 characters, and both AI Humanizer modes accept up to 150 words per free rewrite. Neither requires a payment card.
Plagiarism checking is available only on paid web plans. Each scan accepts up to 3,000 words. One credit covers up to two sentences, rounded up, so a document with five sentences uses three credits.
Paid plans include unlimited AI detection checks and AI Humanizer rewrites. Each detector check accepts up to 1,000,000 characters, and each humanizer rewrite accepts up to 100,000 characters.
The yearly plan is charged as one $84 payment for twelve months. The $7 figure is its monthly equivalent.
Choose a paid plan, sign in, and continue to Paddle’s secure checkout. Your payment details are not entered on Detecting AI’s sign-in pages.
Paid plans renew for the selected billing period until canceled. Billing management is available from your account.