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Head-to-head · Plagiarism Checkers

Turnitin AI Writing Detection vs iThenticate

  • Updated Oct 2026
  • Both researched from official sources
  • 5 checks side by side
Higher score Turnitin AI Writing Detection #1 in Plagiarism Checkers 9.4/10 Pricing on request ✓ 4 of 4 features Visit Turnitin
iThenticate #3 in Plagiarism Checkers 9.0/10 Paid ✓ 4 of 4 features Visit iThenticate

Turnitin AI Writing Detection leads on 0 checks, iThenticate 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

Turnitin AI Writing Detection scores higher on our rubric for plagiarism checkers: 9.4 against 9.0 out of 10; our editors rank them #1 and #3.

Turnitin AI Writing Detection is the better fit for institutions focused on AI-writing detection. iThenticate is the better fit for researchers and publishers needing private-repository checks.

  • Turnitin AI Writing Detection fits best

    Institutions focused on AI-writing detection

  • iThenticate fits best

    Researchers and publishers needing private-repository checks

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Side by side

Feature Turnitin AI Writing Detection 9.4/10 Visit ↗ iThenticate 9.0/10 Visit ↗
At a glance
Editor score 9.4 9.0
Ranking #1 in Plagiarism Checkers #3 in Plagiarism Checkers
Best for Institutions focused on AI-writing detection Researchers and publishers needing private-repository checks
Pricing model Paid Paid
Starting price — $125 one-time
Free plan — —
Free trial — —
Deployment Cloud Cloud
Platforms Web Web
Integrations 14 integrations 3 integrations
Features Turnitin AI Writing Detection 4/4 · iThenticate 4/4
Web source matching ✓ ✓
Academic source matching ✓ ✓
API access ✓ ✓
LMS integration ✓ ✓
Specs
Supported languages Not checked yet Not checked yet
Word limit Not checked yet Not checked yet
Report export formats PDF PDF
Our review
Pros
  • 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
  • Checks internet, publication, Crossref, submitted-work, and private-repository content
  • Provides multiple report views, highlighted matches, and PDF downloads
  • Supports API, LTI, and SSO integrations for organizational accounts
Cons
  • 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
  • No free plan is available
  • The lowest-priced option costs $125 one time
  • Organization pricing is customized rather than published
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 →

iThenticate is a web-based similarity-checking product for scholarly publishers, research departments, institutions, authors, and researchers. It compares submitted manuscripts and other documents with internet pages, archived web content,…

Read the review →
  1. Turnitin AI Writing DetectionPlagiarism Checkers 9.4Pricing on request
  2. iThenticatePlagiarism Checkers 9.0Paid

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

  • iThenticate — where it wins

    • Checks internet, publication, Crossref, submitted-work, and private-repository content
    • Provides multiple report views, highlighted matches, and PDF downloads
    • Supports API, LTI, and SSO integrations for organizational accounts

    Where it doesn't

    • No free plan is available
    • The lowest-priced option costs $125 one time
    • Organization pricing is customized rather than published
  • 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 →
  • iThenticate9.0/10 · Paid

    A paid similarity checker built for researchers, publishers, and private repositories.

    Visit iThenticateFull verdict →

More comparisons

All plagiarism checkers comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update