| StealthGPT | Humbot | |
|---|---|---|
| Starting price | $14.99/mo | $9.99/mo |
| Free tier | 0 words | 100 words |
| Bundled detector | No | No |
| Founded | 2023 | 2023 |
| Best for | Long-form academic or research writing where sentence-level restructuring matters more than speed. | Casual users who don't need guaranteed detector evasion, just smoother-sounding text. |
Price: Humbot is cheaper to start, at $9.99/mo vs $14.99/mo.
StealthGPT: Plans from $14.99/mo; per-word bundles available for one-off use.
Humbot: Free tier capped at 100 words after signup; paid plans from $9.99/mo.
Free tier: Humbot offers a more generous free tier (100 words).
If you just want to test either tool before paying, Humbot's 100-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.
Humbot: Independent testers found its free tier underperforms its marketing claims; paid tier results were not independently verified at the same depth.
AI detector included: Neither tool bundles a built-in detector — pair either with GPTZero or Originality.ai.
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
Humbot
- Familiar, widely-reviewed brand with an active user base
- Decent performance on general blog and marketing copy
Our verdict
Choose StealthGPT if: long-form academic or research writing where sentence-level restructuring matters more than speed. Choose Humbot if: casual users who don't need guaranteed detector evasion, just smoother-sounding text.