| Phrasly AI | GPTinf | |
|---|---|---|
| Starting price | $12.99/mo | $12/mo |
| Free tier | 300 words | 200 words |
| Bundled detector | Yes | No |
| Founded | 2023 | 2023 |
| Best for | Users who want the current highest-ranked general-purpose humanizer without extra bundled features. | Writers who want granular control over tone and which specific sentences get rewritten. |
Price: GPTinf is cheaper to start, at $12/mo vs $12.99/mo.
Phrasly AI: $12.99/mo for unlimited humanization after a 300-word free allowance.
GPTinf: From $12/mo, scaling with monthly word volume.
Free tier: Phrasly AI offers a more generous free tier (300 words).
If you just want to test either tool before paying, Phrasly AI's 300-word allowance gives you more room to evaluate quality.
Detection performance
Phrasly AI: The tool most frequently named 'best overall' in third-party 2026 testing roundups, ahead of Undetectable AI and StealthGPT.
GPTinf: Marketed as being trained directly against detector models rather than general paraphrasing, which independent testers cite as the reason its scores hold up on technical text.
AI detector included: Phrasly AI bundles a built-in detector; GPTinf does not.
Strengths at a glance
Phrasly AI
- Consistently ranked #1 across several independent 2026 comparison tests
- Clean, minimal interface — paste, humanize, done
- Built-in detector shows a live score before you export
GPTinf
- Eight distinct rewriting modes (Academic, Formal, Informal, Creative, Simple, Standard, Expand, Shorten)
- Freeze-keyword feature protects technical terms and proper nouns from being altered
- Selective, sentence-level rephrase instead of forcing a full rewrite
Our verdict
Choose Phrasly AI if: users who want the current highest-ranked general-purpose humanizer without extra bundled features. Choose GPTinf if: writers who want granular control over tone and which specific sentences get rewritten.