Turnitin AI Writing Detection

Web

Freedom report

No signalScore 4.8

Free tierNo free tier on record
Open codeNo open-source code on record
Runs widely1 of 6 device platforms
DocumentedThinly documented

Turnitin AI Writing Detection is ranked #31 of 31 in plagiarism checkers on Freedom251. It runs on Web. There is no free plan.

Turnitin AI Writing Detection plans and pricing

All plans

Turnitin AI Writing Detection (institutional license/add-on) Not published Contact your Turnitin account manager to add the feature to an institutional Turnitin or iThenticate license. Requires a licensed Turnitin product and administrator enablement; no public price shown helpcenter.turnitin.com · 8 Oct 2026

Compared on plagiarism checkers

Free plan: No
API access: Yes

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The record

Purpose: The detector helps educators identify text that may have been generated or modified by AI writing tools.
Report: The report gives an overall percentage of qualifying text likely detected as AI and highlights relevant text segments.
AI paraphrasing: The detection capability can identify likely AI-generated text that may also have been modified using an AI paraphraser or bypasser tool.
Availability: For Turnitin products, AI writing detection is available with Turnitin Originality when licensed and enabled; iThenticate customers can license it as an add-on.
Integrations: Turnitin Feedback Studio's LTI 1.3 integrations include platforms such as Blackboard, Canvas, and Moodle; Microsoft Teams AI writing detection requires the Feedback Studio integration and an Originality license.
File requirements: An AI writing report requires a file under 100 MB, with 300 to 30,000 words of prose in a long-form format, in a supported language and accepted file type.
Languages: Turnitin's AI writing detection guide lists English, Spanish, Japanese, and Arabic as supported languages.
Interpretation limit: Turnitin says the model may misidentify human-written, AI-generated, or AI-paraphrased text and should not be the sole basis for adverse action against a student.
Low scores: Scores below 20% are shown with an asterisk and without an attributed percentage to reduce the risk of false-positive misinterpretation.
Security: Turnitin says it undergoes annual SOC 2 Type II audits conducted by an independent external auditor.
Data use: Turnitin says anonymized student data may be used to train its AI detection classifier when the institution has Turnitin Originality with AI detection enabled.
Administration: An institution's administrator can disable AI writing detection from account settings.
Support: Users who need access should contact their Turnitin administrator, who can speak with the account manager; technical support cannot enable the feature.
Intended users: Turnitin describes its AI writing detection as a tool for educators and institutions to review student submissions and inform their next course of action.

Where it ranks on Freedom251

Best Plagiarism Checkers in 2026#31 of 31
Best AI Detection Software in 2026#30 of 30

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Sources

guides.turnitin.com/hc/en-us/articles/22774058814093-Using-· checked 8 Oct 2026
in.turnitin.com/trust-center· checked 8 Oct 2026
guides.turnitin.com/hc/en-us/articles/21852028157965-Availa· checked 8 Oct 2026
guides.turnitin.com/hc/en-us/articles/28234943089933-File-r· checked 8 Oct 2026
guides.turnitin.com/hc/en-us/articles/28294949544717-AI-wri· checked 8 Oct 2026
guides.turnitin.com/hc/en-us/articles/27377195682317-Turnit· checked 8 Oct 2026
helpcenter.turnitin.com/hc/en-us/articles/31880737970701-How-ca· checked 8 Oct 2026
in.turnitin.com/solutions/academic-integrity/· checked 8 Oct 2026
turnitin.com/solutions/topics/ai-writing/· checked 23 Sept 2026