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 GPTHuman.ai performs against it
One independent tester reported it bypassed every detector used in their test suite, the strongest single result among tools they reviewed.
Should you rely on this combination?
If your goal is genuinely natural-sounding writing rather than evading a specific check, GPTHuman.ai's core strength — live 'stealth score' shows bypass likelihood before you export — matters more than any single detector's score. Users who want a built-in confidence score and don't mind paying a premium for it.