Direct answer
"Turnitin preview" is the ability to see your paper's similarity and AI writing results on a draft before the final submission. It is delivered through Turnitin Originality, which students access inside Microsoft Word or Google Docs via Draft Coach [1]. When enabled, the preview mirrors what the instructor's report will show, so you can identify and fix issues before the deadline [1]. This guide explains what the preview contains, whether students can actually use it, and where to preview your own AI score before submitting.
What Does a Turnitin Preview Show Before Submission?
A Turnitin preview shows two core results on your current draft: a similarity percentage and an AI writing indicator [2]. The similarity percentage highlights text that matches sources in Turnitin's database, while the AI writing indicator estimates how much of the document may have been generated by AI [2].
The AI writing score is displayed as a percentage of the document that may be AI-generated, with per-sentence flags for closer inspection [2]. Scores below 20% are shown as *% rather than a single-digit number, and 0% is the only explicit low numeric outcome you will normally see [2].
In Draft Coach, the preview also includes citation and grammar feedback alongside the similarity and AI checks [2]. That combination lets you see exactly which paragraphs need revision before the report reaches your instructor [2].
Can Students Preview Their Own Turnitin Similarity Report Before Submitting?
Not by default. A student-facing preview only appears when an instructor enables Turnitin Originality or Draft Coach on the assignment [3]. If those tools are turned off, students cannot open their own similarity report until after submission, and sometimes only after the deadline [3].
Even when the preview is available, it is limited. Draft Coach provides a set number of checks per document, and the full similarity report remains an instructor-side view until the paper is submitted [3]. This means the preview you get can differ from the final report in timing and scope [3].
Because access depends entirely on instructor settings, many students have no native way to preview their similarity or AI results before submitting [3]. That gap is exactly why pre-submission checking services exist for drafts [3].
Where Can You Preview Your Turnitin AI Score Before the Official Submission?
Turnitin's AI writing detection is primarily an institutional feature: instructors run it inside their Turnitin accounts, and students generally cannot trigger a report on demand [4]. The only exception is when your institution enables student-facing checks, which, as noted above, is not guaranteed [4].
When a preview is available, the AI writing report shows an overall percentage plus per-sentence highlights [4]. Any score below 20% is displayed as *%, and 0% is the only explicit low numeric value you will typically see [4].
To preview your own draft's AI score before the official submission, you need a service that runs the real Turnitin AI detector on your file and returns the same report your instructor would see [4]. This gives you the score, flags, and similarity summary in advance — the closest thing to a true "Turnitin preview" of your submission [4].
No matter how your instructor configures the assignment, you don't have to submit blind. turnitin0 lets you preview your own draft the same way your instructor will see it — with a real Turnitin AI report covering the score, flags, and similarity summary — before you ever press submit.
※ Turnitin0.com - Actual Turnitin AI Report Cover, Score, Flag And Similarity Summary
FAQ
Is the Turnitin preview the same as the final similarity report?
The preview draws on the same underlying checks (similarity and AI writing), so it closely matches the final report [1]. However, the final report is generated after submission and may reflect newer database matches, so small differences are possible [1].
Does every student get a Turnitin preview before submitting?
No — preview access depends on instructor settings [3]. It is available only when Turnitin Originality or Draft Coach is enabled for the assignment [3].
Why does my Turnitin AI score show as *%?
Turnitin displays any AI writing score below 20% as *% instead of a single-digit percentage [4]. 0% is the only explicit low numeric score you will typically see [4].
Can a preview flag AI-written text even if I wrote it myself?
Yes. AI detection is statistical, so fully human text is occasionally flagged [4]. If that happens, review the highlighted sentences and revise them before submitting [4].
How can I preview my own Turnitin AI score before submitting?
Use a service that runs the real Turnitin AI detector on your draft and returns the same AI and similarity reports instructors see [1][2]. This gives you the same preview information without relying on instructor settings [1].