Originality.ai review: our take
Originality.ai is the detector built for content businesses rather than classrooms. One scan checks AI writing and plagiarism together, and the site scan and team management suit an editor reviewing many freelance pieces. Pro costs $14.95 a month, or $12.95 billed yearly, for 2,000 credits; at 100 words a credit, that is about 200,000 words a month.
The free Basic plan gives 3 AI-only scans a day of up to 2,000 words, enough to test it. Its accuracy evidence is a round-up of studies the vendor compiled itself, several on older models, so read the studies before trusting a score. Our AI detectors guide sets the claims side by side. For classroom use, compare GPTZero; for a vendor-claimed lower false positive rate, Pangram.
By the Prompt Hackers team · facts checked 4 Oct 2026
What Originality.ai does
Originality.ai scans web content for AI writing and plagiarism in one pass. Around the detector it adds grammar, readability and fact checking, site-wide scans, shareable reports and a Chrome extension with writing replay in Google Docs. It says its multilingual model covers 30 languages, and its API is on the Enterprise plan.
Who Originality.ai is for
Best for
- publishers and agencies checking freelance submissions at volume
- SEO teams auditing a whole site for AI and plagiarism
Not for
- taking the accuracy claim at face value: its studies round-up is compiled by the vendor, and several cited studies tested older models such as GPT-3.5 and GPT-4
- long scans on the free plan: it is AI-only, 3 scans a day of up to 2,000 words
- API use on Pro: the API is listed on Enterprise only
Originality.ai features
- F1AI Checker
- F2Plagiarism Checker
- F3Fact and AI Hallucination Checker
- F4Readability and Grammar Checker
- F5Site scans
- F6Chrome extension with writing replay
- F7Shareable reports
- F8API
- Enterprise
Originality.ai pricing and plans
| Plan | Monthly | Billed yearly, per month | What it includes |
|---|---|---|---|
| Basic | $0 | — | 3 AI-only scans a day, up to 2,000 words each, file upload; no subscription |
| Pro | $14.95 | $12.95 | 2,000 credits a month (1 credit = 100 words), plagiarism, readability, grammar and fact checks, site scans, Chrome extension, team management, 30-day scan history |
| Enterprise | $179 | $136.58 | 15,000 credits a month, API access, priority support, 365-day scan history |
| Pay As You Go | — | — | one-time credit purchase; credits expire 2 years after purchase |
Free plan: yes. Prices as listed by the vendor in USD, before tax; they change, so check the pricing page before you buy.
Originality.ai FAQ
- How much does Originality.ai cost?
- Paid plans start at $14.95/mo, with a discount for yearly billing. Prices checked on 4 Oct 2026.
- Does Originality.ai have a free plan?
- Yes, Originality.ai has a free plan.
- What are the alternatives to Originality.ai?
- Tools that cover the same jobs include GPTZero, Pangram, Turnitin, Grammarly.