What is Originality.ai?
Originality.ai is a web-based checker that analyzes a text and estimates whether it was written by an AI model such as ChatGPT, Gemini or Claude, and also looks for plagiarism. You paste text, upload a DOCX, DOC or PDF file, or enter a URL, and the tool returns scores for each selected scan, with sentence-level highlights showing which parts are most likely AI-written. The company says its models are tested against paraphrasing tools such as Quillbot or Grammarly.
Beyond the basic AI check, the platform offers plagiarism detection, a content quality score, a guideline checker, a fact and AI hallucination checker, a grammar checker, a readability checker and a Deep Scan that explains why text was flagged and suggests edits. Users can adjust an AI allowance threshold, bulk scan many texts, generate shareable PDF reports, and use Chrome, Google Docs, Firefox and Moodle extensions, or an API.
Key features
- AI text detection with sentence highlights
- Plagiarism checker
- Deep Scan with editing suggestions
- Bulk scan of multiple texts
- Chrome and Google Docs extension with writing replay
- AI detection API
Who is it for
- Writers and content marketers
- Teachers and students
- Editors and publishers
- Enterprise and agencies
How to get started with Originality.ai
- Go to the Originality.ai website and create an account.
- Paste text, upload a file (docx, pdf, doc), or provide a URL.
- Run the scan and check results for AI detection, plagiarism, and quality.
- Use Deep Scan to see why the text may be flagged as AI.
- You check student work or texts for AI and plagiarism.
- You work in editorial, content agencies, or marketing and control content quality.
- You want to check documents directly in Google Docs or Chrome.
- You need a free tool without limits, since the free plan allows only 3 scans per day.
- You need a Polish-language interface, as the tool does not offer one.
Pros and cons
- Checks many leading LLMs according to the company's cited third-party studies
- Includes plagiarism, grammar and readability checks in one platform
- Free plan is limited to 3 scans per day and 2,000 words per scan
- Credits expire monthly on subscription plans
Originality.ai pricing
| Plan | Price | Includes |
|---|---|---|
| Basic | 0 USD | AI detection only, 3 scans per day, 2,000 words per scan |
| Pro | 12.95 USD / month | Billed yearly at 155.4 USD (14.95 USD/month when billed monthly); 2,000 credits per month (1 credit = 100 words); standard support; team seats additional at 9.95 USD/month (8.62 USD/month on yearly plan) |
| Enterprise | 136.58 USD / month | Billed yearly at 1638.96 USD (179 USD/month when billed monthly); 15,000 credits per month; dedicated Customer Success Manager; priority support |
Prices copied from Originality.ai pricing, checked October 12, 2026. Currency as shown by the vendor; taxes may apply.
Originality.ai pricing details →
Is Originality.ai free?
Yes, there is a free plan. Basic plan with AI detection only: 3 scans per day, limit of 2,000 words per scan, file upload (docx, pdf, doc). No subscription required.
Originality.ai alternatives
| Tool | Price from | Free plan | Category |
|---|---|---|---|
 GPTZero | not listed | yes | AI detectors |
 Turnitin | not listed | ? | AI detectors |
 Undetectable AI | 5.00 USD/mo | trial | AI detectors |
 Copyleaks | 13.99 USD/mo | trial | AI detectors |
 Scribbr | 19,95 USD | ? | Education |
 ZeroGPT | not listed | yes | AI detectors |
All alternatives to Originality.ai →
Comparisons
- GPTZero vs Originality.ai
- ZeroGPT vs Originality.ai
- Turnitin vs Originality.ai
- Originality.ai vs Undetectable AI
FAQ
What is Originality.ai used for?
AI detector and content checker that flags AI-generated text and plagiarism for writers, editors, teachers and publishers.
Is Originality.ai free?
Yes, there is a free plan. Basic plan with AI detection only: 3 scans per day, limit of 2,000 words per scan, file upload (docx, pdf, doc). No subscription required.
How much does Originality.ai cost?
The cheapest paid plan is 12.95 USD/mo (vendor pricing, October 12, 2026).
What are the best Originality.ai alternatives?
Closest alternatives: GPTZero, Turnitin, Undetectable AI, Copyleaks, Scribbr.
Data checked October 12, 2026 on the vendor website (originality.ai).