Direct answer
Direct Answer - No, Turnitin is not free for students in the general sense: it is licensed by universities, and students can only use it if their institution enables self-check access on an assignment. The AI writing detection itself is embedded in that institutional tool — it estimates the percentage of a paper likely written by AI tools and flags AI-written sentences, with any score below 20% shown as an asterisk (*%) rather than a precise number [1]. So before you submit, the practical question is whether your university has opened Turnitin's AI report to you, and if not, how to see the same report your professor will see.
FAQ
Is Turnitin free for students?
Turnitin itself is not free for students — it is licensed by universities, and students only get access when their institution enables draft checking on an assignment [2].
What does Turnitin's AI detection actually check?
It analyzes a submission and estimates the percentage of text likely generated by AI tools like ChatGPT, Claude, or Gemini, and highlights the sentences it flags as AI-written [3].
Why do I see an asterisk (*%) instead of a number in the AI report?
Turnitin displays any AI score below 20% as *% rather than a precise percentage; the only low number shown numerically is 0% [1][3].
Can I check my own draft with Turnitin's AI detector before submitting?
Only if your instructor has enabled draft checking in the assignment settings — otherwise there is no official student self-serve route to the AI report [4].
What can I do if my school doesn't let me see my Turnitin AI score?
Services like turnitin0 run your draft through Turnitin's real AI and similarity detectors and return the same style of report instructors see, so you can check before you submit [4].