kitio.aiPlagiarismCheck.org vs AI or Not
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. PlagiarismCheck.org starts at See pricing page and AI or Not starts at $5/mo. 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
- Plagiarism checker
- AI content detector
- LMS integrations
- Google Docs add-on
- Plagiarism check API
- Essay grader
- AI text detection
- AI image detection
- Deepfake detection
- AI music and voice checks
- AI video checks
- Detection API
| Feature | PlagiarismCheck.org | AI or Not |
|---|---|---|
| Best for | Plagiarism checker and AI detector for schools, students and businesses | Detector for AI-made text, images, audio, music, video and deepfakes |
| Category | Writing | Writing |
| Pricing model | Freemium | Freemium |
| Starting price | See pricing page | $5/mo |
| Free plan | Yes | Yes |
| Made by | PlagiarismCheck.org | AI or Not |
| Based in | – | – |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
PlagiarismCheck.org starts at See pricing page and AI or Not starts at $5/mo. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
4 plans
Free
Free
- $5 in starting credits
- 1M words of text detection monthly
- 20 image checks
- API key
Pro
$5/mo
- $10 in credits each month
- All modalities unlocked
- Credits roll over
Business
$100/mo
- $100 in credits each month
- 25% off media checks
- Reseller rights
Enterprise
Custom
- Custom models
- On-prem or private instances
- Dedicated support
Prices in USD, checked Oct 29, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
PlagiarismCheck.org
- Integrates with seven major LMS platforms
- Checks for both plagiarism and AI text
- API for platforms and businesses
- Free check for individuals
- Plan prices not shown in the evidence
- AI detection can produce false positives
- Extra writing tools are fairly basic
AI or Not
- Covers text, image, audio and video
- API key on the free plan
- Credits roll over monthly on Pro
- Detection results are probabilistic
- Video checks use credits quickly
- Free plan has few image checks
Which one should you choose?
Choose PlagiarismCheck.org if you want:
- Integrates with seven major LMS platforms
- Checks for both plagiarism and AI text
- API for platforms and businesses
Watch out: plan prices not shown in the evidence.
Choose AI or Not if you want:
- Covers text, image, audio and video
- API key on the free plan
- Credits roll over monthly on Pro
Watch out: detection results are probabilistic.
PlagiarismCheck.org vs AI or Not FAQ
What is the difference between PlagiarismCheck.org and AI or Not?
PlagiarismCheck.org: Plagiarism checker and AI detector for schools, students and businesses. AI or Not: Detector for AI-made text, images, audio, music, video and deepfakes. Both are writing tools.
Is PlagiarismCheck.org or AI or Not cheaper?
PlagiarismCheck.org starts at See pricing page and AI or Not starts at $5/mo. Check both pricing pages for current plans.
Do PlagiarismCheck.org and AI or Not have free plans?
PlagiarismCheck.org: Yes. AI or Not: Yes.
Who makes PlagiarismCheck.org?
PlagiarismCheck.org is made by PlagiarismCheck.org.
Who makes AI or Not?
AI or Not is made by AI or Not.
Which should I choose, PlagiarismCheck.org or AI or Not?
Choose PlagiarismCheck.org if you value integrates with seven major lms platforms and checks for both plagiarism and ai text. Choose AI or Not if you value covers text, image, audio and video and api key on the free plan.