kitio.aiOriginality.ai vs Plag
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Originality.ai starts at $14.95/mo and Plag starts at See pricing page. Check both pricing pages for current plans.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- AI detector
- Plagiarism checker
- Fact checker
- Site-wide scans
- Shareable reports
- Plagiarism check
- AI content detection
- Translated plagiarism detection
- 129 languages
- Private file handling
- Many file formats
| Feature | Originality.ai | Plag |
|---|---|---|
| Best for | AI detection, plagiarism and fact checking for web publishers | Plagiarism checker and AI content detector for documents |
| Category | Writing | Writing |
| Pricing model | Freemium | Freemium |
| Starting price | $14.95/mo | See pricing page |
| Free plan | Yes | Yes |
| Made by | Originality.ai | Plag |
| Based in | Canada | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Originality.ai starts at $14.95/mo and Plag starts at See pricing page. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
3 plans
Free
Free
- 100 credits one time (10K words)
- AI Checker
- 1 credit = 100 words
Pro
$14.95/mo
- 2,000 credits (200K words) per month
- Deep Scan and Bulk Scan
- 30-day scan history
- Extra seats $9.95/mo
Enterprise
$179/mo
- 15K credits (1.5M words) per month
- API access
- 1-year scan history
- Priority support
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Originality.ai
- Built for content teams
- Combines several checks in one scan
- Pay-as-you-go option
- Strict detector can flag edited human text
- Credits add up on large sites
Plag
- Files not stored in comparison databases
- Free originality scores
- Wide language coverage
- Full reports are priced by document length
- AI detectors can produce false positives
- No flat subscription price shown
Which one should you choose?
Choose Originality.ai if you want:
- Built for content teams
- Combines several checks in one scan
- Pay-as-you-go option
Watch out: strict detector can flag edited human text.
Choose Plag if you want:
- Files not stored in comparison databases
- Free originality scores
- Wide language coverage
Watch out: full reports are priced by document length.
Originality.ai vs Plag FAQ
What is the difference between Originality.ai and Plag?
Originality.ai: AI detection, plagiarism and fact checking for web publishers. Plag: Plagiarism checker and AI content detector for documents. Both are writing tools.
Is Originality.ai or Plag cheaper?
Originality.ai starts at $14.95/mo and Plag starts at See pricing page. Check both pricing pages for current plans.
Do Originality.ai and Plag have free plans?
Originality.ai: Yes. Plag: Yes.
Who makes Originality.ai?
Originality.ai is made by Originality.ai, based in Canada.
Who makes Plag?
Plag is made by Plag.
Which should I choose, Originality.ai or Plag?
Choose Originality.ai if you value built for content teams and combines several checks in one scan. Choose Plag if you value files not stored in comparison databases and free originality scores.