Originality.ai
Originality.ai gives editorial teams one place to vet copy before it goes live.
Best for Publishers and editors checking drafts for AI authorship and plagiarism
- Starts at
- $14.95/month flat
- Free plan
- Yes
- Price checked
- 2026-10-21
Pricing
Price checked: 2026-10-21. Source: official pricing page.
Free plan: Free, no subscription: 10K words (100 credits one time); 1 credit = 100 words. Note: the page's comparison table lists the free column as '60 (3 scans/day)' credits renewing daily, which conflicts with the plan card
| Plan | Monthly | Annual (per month) | Billing unit | Notes | Source |
|---|---|---|---|---|---|
| Pro | $14.95 | $12.95 | flat | 200K words (2K credits)/month; extra team seats $9.95/mo monthly or $8.62/mo yearly; 1-year scan history (card) / 30 days (comparison table) | Source |
| Enterprise | $179 | $136.58 | flat | 1.5M words (15K credits)/month; API access; 365-day scan history; extra seats $24.95/mo monthly or $19.04/mo yearly | Source |
"Not listed" means the official page shows no list price for that billing period (often contact sales). We never fill gaps from third-party sites.
Overview
Paste text, upload a document or point it at a URL, and it returns an AI-likelihood score, a plagiarism match report, and optional checks for readability, grammar, house guidelines and questionable factual claims. Usage is metered in credits tied to word counts, so cost tracks how much content you review rather than how many people log in. A Chrome and Google Docs extension adds a typing replay that helps writers show they produced a draft themselves, which is useful when a client or teacher disputes a result. Agencies and publishers can share scans, tag them, manage team seats and use the API to plug checks into a CMS or workflow. Limitation: no detector is definitive, so false positives and false negatives remain possible, especially on short passages or heavily edited text. Credits also run out fast on large backlogs, and history retention and API access depend on the plan.
Key features
- AI-authorship and plagiarism scoring in one scan
- Writing replay extension for Chrome and Google Docs
- API plus team seats for agencies and publishers
Limitations
Detection is probabilistic and can misfire on short or edited text. Free use is a one-time credit allowance. Usage is credit-metered by word count; extra team seats cost more; API access is on the top plan.