Humanizing AI text as a non-native English writer
Vary your sentence length before anything else. AI detectors flag second-language writing at high rates because both share a signature: common vocabulary and even, predictable structure. In peer-reviewed testing, seven detectors misclassified 61.22% of TOEFL essays as AI-generated. Varying rhythm addresses the actual signal.
Typical length · Any length. This is about pattern, not word count.
Before and after
Before
The research shows that exercise is good for health. Many studies have found this result. It is important for people to exercise regularly. Doctors recommend thirty minutes each day.
After
Exercise is good for you — that much is settled. What surprised me in the research was the threshold: thirty minutes a day, and most of the benefit is already there. You do not need the gym membership you feel guilty about.
Four short declaratives of similar length became one short, one long and one medium. A personal reaction and a specific number replaced generic reporting. Neither version has grammar errors — the first simply reads as machine-like.
What to watch for
- If your work has been wrongly flagged, keep your draft history. It is the strongest evidence available.
- Do not let a rewrite introduce idioms you would not use — that reads as inauthentic to a human marker even if it satisfies a detector.
If your writing gets flagged
Rewriting for rhythm and specificity tends to lower detection scores, because that is what detectors read as human. It is not a guarantee — detectors disagree with each other and change without notice, and we do not promise a result from any of them.