How Originality.ai works
One of the two detectors (alongside GPTZero) that most humanizer tools explicitly test their output against. Originality.ai is pay-as-you-go credits or $14.95/mo for the pro plan.
How StealthGPT performs against it
Positioned and marketed specifically around Turnitin's originality algorithm rather than general-purpose detectors.
Should you rely on this combination?
If your goal is genuinely natural-sounding writing rather than evading a specific check, StealthGPT's core strength — generates and rewrites in one pass, so you can skip a separate ai writer — matters more than any single detector's score. Long-form academic or research writing where sentence-level restructuring matters more than speed.