| StealthGPT | GPTHuman.ai | |
|---|---|---|
| Starting price | $14.99/mo | $25/mo |
| Free tier | 0 words | 200 words |
| Bundled detector | No | Yes |
| Founded | 2023 | 2024 |
| Best for | Long-form academic or research writing where sentence-level restructuring matters more than speed. | Users who want a built-in confidence score and don't mind paying a premium for it. |
Price: StealthGPT is cheaper to start, at $14.99/mo vs $25/mo.
StealthGPT: Plans from $14.99/mo; per-word bundles available for one-off use.
GPTHuman.ai: Plans start at $25/mo — one of the pricier options in the category.
Free tier: GPTHuman.ai offers a more generous free tier (200 words).
If you just want to test either tool before paying, GPTHuman.ai's 200-word allowance gives you more room to evaluate quality.
Detection performance
StealthGPT: Positioned and marketed specifically around Turnitin's originality algorithm rather than general-purpose detectors.
GPTHuman.ai: One independent tester reported it bypassed every detector used in their test suite, the strongest single result among tools they reviewed.
AI detector included: GPTHuman.ai bundles a built-in detector; StealthGPT does not.
Strengths at a glance
StealthGPT
- Generates and rewrites in one pass, so you can skip a separate AI writer
- Aggressive sentence-level restructuring rather than word substitution
- No word cap on paid plans — good for full-length papers
GPTHuman.ai
- Live 'Stealth Score' shows bypass likelihood before you export
- 'Re-humanize' feature reruns the pass if the first score isn't high enough
- Bypassed every detector tested in one independent 2026 review
Our verdict
Choose StealthGPT if: long-form academic or research writing where sentence-level restructuring matters more than speed. Choose GPTHuman.ai if: users who want a built-in confidence score and don't mind paying a premium for it.