Direct answer
Direct Answer — Turnitin's AI detection feature is not sold as a standalone product directly to students. It is included as part of Turnitin's institutional subscription, meaning individual students cannot pay per check to run their draft through Turnitin's official AI detector on their own [1]. Institutional pricing varies based on enrollment size and license tier, and there is no public per-student fee [2]. For students who need to check their AI score before submitting, third-party services like Turnitin0.com offer a practical alternative at transparent, pay-per-use rates.
How Much Does a Turnitin AI Check Cost for Students?
Turnitin operates on an institutional subscription model — universities, colleges, and schools pay an annual license fee based on the size of their student body and the features they enable [2]. The AI writing detection report is typically included in higher-tier licenses such as Turnitin Originality+ or Feedback Studio with AI, but individual students never see a per-check charge on their end [1][2]. This means that if your institution has enabled Turnitin AI detection, you can submit assignments through your school's learning management system (LMS) and the AI check runs automatically at no separate cost to you [1].
However, if your institution has not enabled the AI detection feature — or if you want to check your draft before submitting it for a grade — you cannot pay Turnitin directly for a standalone check [2]. Turnitin's pricing page offers no "buy one AI check" option; it only lists institutional plans with custom quotes [2]. This leaves many students searching for alternative ways to preview their AI score, especially given that a flagged submission can lead to academic integrity inquiries. Third-party services that mirror Turnitin's AI detection methodology have stepped in to meet this demand, offering affordable per-check pricing that fills the gap left by Turnitin's institution-only model [1][2].
What Does a Turnitin AI Detection Report Show?
A Turnitin AI detection report provides a comprehensive view of how much of a submitted document was likely generated by artificial intelligence [3]. The report displays an overall AI score as a percentage from 0% to 100%, with scores below 20% shown as an asterisk (*%) rather than a single-digit number — a design choice that communicates low confidence rather than a precise low percentage [1][3]. For scores of 20% or higher, the exact percentage is displayed, and the report color-highlights specific sentences and paragraphs that Turnitin's model flags as AI-generated, AI-paraphrased, or possibly human-written [3].
Beyond the headline percentage, the report breaks down the flagged text into categories: AI-generated, AI-paraphrased (text that may have been rewritten by AI from an original source), and human-written [3]. This granularity helps instructors understand not just how much AI was used but how it was used. For example, a paper might show 40% AI-generated content with an additional 15% AI-paraphrased, giving a clearer picture than a single number alone [3].
Crucially, the report also distinguishes between the Similarity Report (which checks against databases of existing published and student work) and the AI Writing Report (which detects AI-generated prose) [1][3]. Students sometimes confuse these two — the Similarity Report catches plagiarism, while the AI report catches AI authorship. Both reports are available in Turnitin's institutional interface, but visibility to students depends on the instructor's settings [1]. This distinction matters when evaluating cost, because paying for a "Turnitin check" could mean a similarity check, an AI check, or both — and not all services offer both.
Can Students Check Their Turnitin AI Score Before Submitting?
Generally, no — most students cannot see their Turnitin AI detection score before they submit their final version to an instructor [4]. By default, the AI writing report is generated only after the student submits through the institution's LMS, and it is visible first to the instructor, who may choose whether to share it with the student [1][4]. Turnitin's Draft Coach (a Google Docs add-on) does allow students to check similarity scores in real time, but it does not show the AI detection score at all [4]. This creates a significant blind spot: students who want to ensure their work is not falsely flagged — or who need to reduce their AI score before submission — have no official way to preview it.
This limitation is especially problematic for students who use AI as a writing aid (e.g., for brainstorming, paraphrasing, or grammar polishing) and want to verify that their final draft falls within acceptable AI thresholds [3][4]. Without a pre-submission check, students risk submitting a paper that receives a high AI score unexpectedly, triggering a plagiarism or academic integrity investigation. The inability to preview also undermines the pedagogical goal of teaching responsible AI use — students cannot self-correct if they have no visibility into what the detector sees [4].
Third-party services like Turnitin0.com bridge this gap by offering students the ability to upload their draft and receive a real Turnitin AI and similarity report before submitting to their instructor [4]. This gives students the same visibility that instructors have, allowing them to review flagged passages, understand their AI score, and make informed decisions — whether that means rewriting flagged sections or simply confirming that their work reads as human-written. For students who want full control over their submission outcome, a pre-check is one of the most practical tools available [4].
If you want the same visibility your instructor has — before you hit submit — Turnitin0.com gives you a real Turnitin AI and similarity report in about 10 minutes, no institutional license required.
※ Turnitin0.com - Actual Turnitin AI Report Cover, Score, Flag And Similarity Summary
In short, the cost of a Turnitin AI check for a student is effectively $0 if your school covers it through its license, but unavailable as a direct purchase from Turnitin if your school does not [1][2]. For the latter scenario, students typically turn to services like Turnitin0.com, which provide real Turnitin AI reports at a small per-check fee [1].
FAQ
1. Is Turnitin AI detection free for students?
Yes — if your institution has enabled the AI writing detection feature in its Turnitin license, the check runs automatically when you submit through your school's LMS at no additional charge to you [1]. You never need to pay a per-check fee to Turnitin directly.
2. Can I buy a single Turnitin AI check for my paper?
Not from Turnitin itself. Turnitin only sells subscriptions to institutions, not individual checks [2]. However, third-party services like Turnitin0.com offer per-check AI and similarity reports starting at $2.50, giving students an affordable way to preview their score before submission.
3. What's the difference between a Turnitin Similarity Report and an AI Detection Report?
The Similarity Report checks your text against databases of published works, websites, and other student papers to identify matching or plagiarized content [3]. The AI Detection Report analyzes whether the text was generated by AI tools like ChatGPT, Claude, or Gemini. Both reports are available in Turnitin, but they serve different purposes [1][3].
4. Why can't I see my AI score before submitting to my instructor?
Turnitin's default settings restrict the AI writing report to instructors only [4]. Students typically cannot preview their AI score through the official platform before final submission, which is why many students use pre-submission services to gain early visibility [4].
5. What does the asterisk (*%) mean on a Turnitin AI report?
An asterisk (*%) indicates that the AI score is below 20%. Turnitin deliberately hides single-digit percentages (e.g., 3%, 12%) behind the asterisk to avoid over-interpretation of low-confidence scores [1]. The only explicit low numeric outcome is 0%, meaning no AI text detected [1].