Direct answer
Unlike many students expect, there is no dedicated "AI check" button or separate submission process in Turnitin. The AI writing detection check is an automatic part of the standard Turnitin submission pipeline [1]. When you submit a paper through your institution's learning management system via Turnitin, the system processes both the Similarity Report and the AI Writing Report in the same workflow. Instructors can view both reports side by side in the document viewer, typically within minutes of submission. Understanding this order is the first step to knowing what your AI score looks like before your instructor sees it.
How Does the AI Check Work in the Turnitin App?
Turnitin does not offer a standalone "AI check app" that students can download or access independently. Instead, the AI writing detection feature is embedded in the Turnitin platform that institutions integrate with their Learning Management System (LMS). When a student submits an assignment through Canvas, Moodle, or Blackboard via Turnitin, the processing pipeline runs two parallel analyses: a similarity check against existing databases and an AI detection scan against trained language models [2].
The AI detection model analyzes the submitted text at the sentence level, assessing each segment for linguistic patterns characteristic of large language models (LLMs) such as ChatGPT, Claude, and Gemini [1]. After processing, which typically completes within minutes, the instructor's document viewer displays an overall AI percentage for the entire submission alongside color-coded highlights indicating which sentences are predicted to be AI-generated [2]. Sentences flagged with high confidence are marked distinctly from those with moderate or low confidence, giving instructors a granular view of the writing.
The entire process is fully automated — no manual trigger, additional fee, or extra submission step is required from the student. The AI check order is simply the natural sequence within the standard Turnitin submission workflow [2].
What Do the Different AI Score Percentages in a Turnitin Report Mean?
The AI score percentage displayed in a Turnitin report represents the proportion of the submitted document that Turnitin's detection model predicts was generated by artificial intelligence [3]. This is not a binary guilty-or-not-guilty verdict — it is an estimate based on linguistic pattern analysis. A 40% AI score means the model predicts that 40% of the document text was AI-generated, while the remaining 60% is likely human-written.
Turnitin uses a three-tier confidence system for sentence-level detection: high confidence (sentences very likely AI-generated, shown in a distinct color), moderate confidence (probable AI generation), and low confidence (possible but uncertain) [3]. These are color-coded in the report so instructors can quickly assess which sections warrant closer review. The overall percentage is calculated by aggregating these sentence-level predictions.
A critical detail that many students overlook is that AI scores below 20% are not displayed as exact numbers. Instead, Turnitin shows an asterisk (*) with an indicator that the score is under 20% [3]. This design reduces false positive anxiety, as low-percentage flags are more likely to be statistical noise than genuine AI generation. The only explicit numeric low score on a Turnitin report is 0%, meaning the model detected no AI-generated text.
Can Students Check Their Own Turnitin AI Score Before Submitting to Their University?
Turnitin's AI writing detection is primarily an instructor-facing tool. By default, students do not have direct access to generate an AI writing report on their own drafts through the standard Turnitin interface [4]. However, some institutions configure their Turnitin settings to allow draft submission dropboxes where students can view similarity and AI reports before final submission. If your university offers this feature, you can submit a draft, review the reports, revise your work, and then submit the final version — all within the same Turnitin workflow.
For students whose institutions do not provide draft dropbox access, there are alternative pathways. Several third-party services now replicate the official Turnitin AI detection and similarity checking process, allowing students to upload their documents and receive the same style of AI and similarity reports that instructors see [4]. These services help students understand their AI score before it reaches their professor, reducing the risk of submitting flagged content.
Turnitin itself encourages faculty to discuss AI writing tools and detection with students proactively, creating an educational framework rather than a punitive one [4]. When students understand how AI detection works and what scores mean, they can make informed decisions about their writing and academic integrity.
At Turnitin0, we believe students should never be surprised by their AI score after submission. That is why we built a service that gives you the same Turnitin AI and similarity reports your instructor sees — before you submit. No subscriptions, no hidden fees, just real Turnitin reports delivered in approximately 10 minutes.
※ Turnitin0.com - Actual Turnitin AI Report Cover, Score, Flag And Similarity Summary
FAQ
Is there a standalone Turnitin app for AI checking?
No, Turnitin does not offer a dedicated mobile or desktop "AI check app" for students. The AI detection feature is built into the Turnitin platform that integrates with your university's LMS, such as Canvas or Moodle [1]. To check your work, you either submit through your institution's Turnitin-enabled dropbox or use a third-party service to preview your AI score before submission.
Does Turnitin check for AI first or plagiarism first?
Turnitin runs the AI detection check and the similarity check simultaneously in a single processing pipeline [2]. There is no fixed order — both reports are generated together during the same automated analysis and appear side by side in the instructor's document viewer.
What does an asterisk (*) instead of a percentage mean in the AI report?
An asterisk (*) in the AI writing report indicates that the overall AI score is below 20% [3]. Turnitin does not display exact single-digit percentages (such as 3% or 12%) to reduce false positive anxiety. Only 0% is shown as a precise low score; everything else under 20% appears as the asterisk bucket.
Can I check my Turnitin AI score before submitting to my professor?
Yes. Through third-party services like Turnitin0, you can upload your document and receive a full Turnitin AI report without linking to your university account [4]. Your paper is not archived in any institutional database, and the check is completely private. You get the same style of AI and similarity report that your instructor would see.
How long does the AI check take in Turnitin?
In most cases, Turnitin processes submissions and generates both the similarity and AI reports within a few minutes [2]. Since the AI detection is part of the same pipeline as the similarity scan, you do not wait longer for AI results. At Turnitin0, results are typically delivered in approximately 10 minutes.