Head-to-head · Plagiarism Checkers
Turnitin AI Writing Detection vs Crossref Similarity Check
Turnitin AI Writing Detection leads on 0 checks, Crossref Similarity Check on 0, and 5 are even. Who comes out ahead on the 5 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.
Our verdict
- Highest scoreTurnitin AI Writing Detection · 9.4/10
- Most featuresTurnitin AI Writing Detection · 4 of 4
Turnitin AI Writing Detection scores higher on our rubric for plagiarism checkers: 9.4 against 9.2 out of 10; our editors rank them #1 and #2.
Turnitin AI Writing Detection is the better fit for institutions focused on AI-writing detection. Crossref Similarity Check is the better fit for publishers and journals checking manuscripts.
- Turnitin AI Writing Detection fits best
Institutions focused on AI-writing detection
- Crossref Similarity Check fits best
Publishers and journals checking manuscripts
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Side by side
| Feature | Turnitin AI Writing Detection 9.4/10 Visit ↗ | Crossref Similarity Check 9.2/10 Visit ↗ |
|---|---|---|
| At a glance | ||
| Editor score | 9.4 | 9.2 |
| Ranking | #1 in Plagiarism Checkers | #2 in Plagiarism Checkers |
| Best for | Institutions focused on AI-writing detection | Publishers and journals checking manuscripts |
| Pricing model | Paid | Paid |
| Starting price | — | — |
| Free plan | — | — |
| Free trial | — | — |
| Deployment | Cloud | Cloud |
| Platforms | Web | Web |
| Support | Docs | Email, Phone, Docs |
| Integrations | 14 integrations | 5 integrations |
| Built for | Mid-market, Enterprise | Small business, Mid-market, Enterprise |
| Features Turnitin AI Writing Detection 4/4 · Crossref Similarity Check 3/4 | ||
| Web source matching | ✓ | ✓ |
| Academic source matching | ✓ | ✓ |
| API access | ✓ | ✓ |
| LMS integration | ✓ (best) | Not checked yet |
| Specs | ||
| Supported languages | Not checked yet | Not checked yet |
| Word limit | Not checked yet | Not checked yet |
| Report export formats | ||
| Our review | ||
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| Our verdict | Turnitin AI Writing Detection is an institutional feature and add-on for identifying text that may have been generated or modified by generative AI tools. It is designed for educators and academic-integrity teams handling assignments… Read the review → |
Crossref Similarity Check is a manuscript-screening service for Crossref members, powered by Turnitin’s iThenticate software. Publishers and editors can upload manuscripts or submit them through a manuscript submission system using an API.… Read the review → |
Strengths and trade-offs
Turnitin AI Writing Detection — where it wins
- Highlights predicted AI-generated segments with an overall percentage
- Detects AI-paraphrased or bypassed English text
- Integrates with major LMS platforms and exports PDF or CSV reports
Where it doesn't
- No free plan for individual or self-serve evaluation
- Pricing is quote-based and depends on institution size and requirements
- Focused on AI-writing detection rather than conventional similarity checking
Crossref Similarity Check — where it wins
- Compares manuscripts with academic content and current or archived web pages
- Detailed reports include scores, highlighted matches, filters, and PDF export
- API access supports manuscript submission systems, including OJS
Where it doesn't
- Available only to eligible Crossref members
- Annual service fee is required
- First 100 documents are limited to 25,000 words each
- Turnitin AI Writing Detection9.4/10 · Pricing on request
A focused institutional tool for identifying text that may be AI-generated or modified.
Visit TurnitinFull verdict → - Crossref Similarity Check9.2/10 · Paid
A focused manuscript-screening service with academic matching, reports, filters, and API access.
Visit CrossrefFull verdict →
More comparisons
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- Turnitin AI Writing Detection vs PlagiarismCheck.org
- Crossref Similarity Check vs iThenticate
- Crossref Similarity Check vs Copyscape
All plagiarism checkers comparisons → · Full ranking →
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update