| GPTHuman.ai | WriteBros.ai | |
|---|---|---|
| Starting price | $25/mo | $1.99/mo |
| Free tier | 200 words | 0 words |
| Bundled detector | Yes | No |
| Founded | 2024 | 2024 |
| Best for | Users who want a built-in confidence score and don't mind paying a premium for it. | Budget-conscious, high-volume users willing to run text through multiple passes for the best score. |
Price: WriteBros.ai is cheaper to start, at $1.99/mo vs $25/mo.
GPTHuman.ai: Plans start at $25/mo — one of the pricier options in the category.
WriteBros.ai: Lite plan from $1.99/mo (30k words); Plus $9.99/mo; Pro $15/mo with API access.
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
GPTHuman.ai: One independent tester reported it bypassed every detector used in their test suite, the strongest single result among tools they reviewed.
WriteBros.ai: Achieved a 100% human GPTZero score in testing, but only after four iterative rewriting rounds rather than a single pass.
AI detector included: GPTHuman.ai bundles a built-in detector; WriteBros.ai does not.
Strengths at a glance
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
WriteBros.ai
- By far the lowest starting price of any tool reviewed here
- Removes common AI 'tells' like overused em-dashes and uniform sentence rhythm
- Pro tier includes API access for automated pipelines
Our verdict
Choose GPTHuman.ai if: users who want a built-in confidence score and don't mind paying a premium for it. Choose WriteBros.ai if: budget-conscious, high-volume users willing to run text through multiple passes for the best score.