Improving how your writing reads to GPTZero
Explore GPTZero detection, then refine sentence structure, transitions and terminology in your academic draft.
GPTZero is one of the most widely used free AI detectors, popular with instructors. It leans on two ideas: perplexity (how predictable each word is) and burstiness (how much sentence length and complexity vary). AI text tends to be low-perplexity and low-burstiness — smooth and even — which is exactly what GPTZero flags.
Writing that genuinely varies — mixing short and long sentences, using specific and less predictable wording, carrying a real argument — naturally raises burstiness and perplexity. BunnyScholar's Humanizer rewrites toward that natural variation while keeping your meaning and citations intact. It improves readability; it does not certify a GPTZero outcome.
How GPTZero works
- Scores perplexity — how predictable the next word is.
- Scores burstiness — how much sentence length and complexity vary.
- Flags smooth, even text with low variation.
- Offers sentence-level highlights of suspected AI passages.
Improve your writing
- Mix short and long sentences to raise burstiness naturally.
- Use specific, less predictable wording instead of generic phrasing.
- Carry a real argument with your own examples.
- Keep citations exact with the fidelity toggle.
Frequently asked questions
How can I combine detection and rewriting?+
Review your text analysis, then use the Humanizer to refine sentence structure and transitions with discipline and terminology settings.
What is burstiness?+
Variation in sentence length and complexity. Human writing tends to be burstier than AI writing.
Is there a free way to check?+
Yes — our login-free detector returns an AI-likelihood score before you decide what to revise.