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.

Bypass-rate figures come from third-party testing at a point in time. Detector models update regularly, and results vary by source text, topic, and length — treat any specific percentage as a snapshot, not a guarantee.

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.

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