PaperCheck

Guides

How Turnitin and other AI detectors work, and how to get your paper ready.

• How to check your report's AI score before Turnitin
  You can't run Turnitin yourself, but you can get close. Here's how to check your report's AI score and fix the lines causing it.
• What *% means on Turnitin's AI report
  Turnitin shows *% instead of a number for low AI scores. Here's what that actually means.
• Why Turnitin, GPTZero and Pangram give different AI scores
  The same report can get very different AI scores on different tools. A 2026 study shows how much.
• Why Turnitin can show 0% on text from new AI models
  Newer AI models write differently, and Turnitin often misses them. Here's why, and why it matters.
• How to fix lines flagged as AI-written
  Simple ways to rewrite flagged lines so they actually say something about your own work.