HumanGPT vs StealthWriter.
StealthWriter is an AI humanizer focused on making AI content undetectable. Here's how it compares to HumanGPT on the things that matter: accuracy, pricing, free access, and feature set.
The short version.
StealthWriter focuses specifically on stealth rewriting with multiple output modes. It's a dedicated tool for the AI humanization use case.
HumanGPT offers a free tier with no signup, lifetime pricing, REST API access, and integrated 7-detector checking that StealthWriter doesn't match.
Both are legitimate humanizers. The choice depends on your specific needs and budget.
When StealthWriter works well
StealthWriter offers multiple rewriting modes (Ninja, Ghost, etc.) that give users control over how aggressively the text is rewritten.
Their interface is focused purely on humanization, which makes it straightforward for users who know exactly what they need.
StealthWriter has built a community of users who trust the tool for regular content production.
When HumanGPT is the better choice
Free tier. 200 words/day, no signup, no credit card.
Lifetime plan. $199 for unlimited words, subscription-free forever.
7-detector checking built in. See scores from all major detectors in one click.
Brand Voice training on Pro — save your writing style once, every rewrite stays in your voice.
Side-by-side compare — see the AI and human versions in two columns.
Two-model 2nd-opinion pass on Pro — cleaner output on borderline detector cases.
Paste the AI text. Get back something a human would actually write.
no signup. no card.
The same tool runs a different pipeline on each plan.
Free is one fast pass. Pro adds a real-detector feedback loop. Founders runs the loop with the strongest pass on the last iteration. Same input, measurably different output quality.
Single pass.
Fast. Free forever. No signup.
- One humanize pass through the engine
- 3 voice profiles, 2 reading levels
- 200 words a day, no card needed
- Brand Voice training supported (Pro)
Good for casual use and one-off rewrites.
Two-pass detector loop.
The engine corrects what the detector flags.
- Pass 1 humanizes, then a real detector scores it
- Pass 2 fixes whatever was still flagged
- Two-model 2nd-opinion pass + Brand Voice training
- Side-by-side compare + searchable run history
- 50,000 words a month, API access
Right for everyday work where the output has to pass a real scan.
Three passes, hardest pass last.
The toughest input gets the most thorough rewrite.
- Three full passes through the loop
- Final pass runs on the strongest model tier
- Every Pro feature included
- Unlimited words, for life
- Capped at 100 seats, ever
For dissertations, legal briefs, and anything strict detectors will scan.
- FreeSingle pass96.4%
- ProTwo-pass detector loop99.6%
- FounderThree passes, strongest model last99.8%
Feature comparison.
| Feature | HumanGPT | StealthWriter |
|---|---|---|
| Free tier | 200 words/day, no signup | Limited |
| Lifetime option | $199 (unlimited) | Not available |
| Detectors checked | 7 (all major) | Varies |
| Max input per run | 8,000 words (Pro) / 12,000 (Founder) | varies |
| Brand Voice training (Pro) | Yes | No |
| Rewriting modes | Subtle / Natural / Strong | Multiple stealth modes |
Pricing comparison
HumanGPT Free: $0, 200 words/day. StealthWriter: limited free access.
HumanGPT Pro: $10/month. StealthWriter: comparable monthly pricing.
HumanGPT Lifetime: $199. StealthWriter: subscription only.
HumanGPT vs StealthWriter.
Answered honestly.
HumanGPT has a better free tier, lifetime pricing, more features, and 7-detector checking. StealthWriter has dedicated stealth modes. Both bypass detectors. Choose based on your priorities.
HumanGPT's tested rate is 99.6% across all 7 detectors. Check StealthWriter's current claims for comparison.
Yes. 200 words per day, no account needed. Just paste and humanize.
As of 2026, no. HumanGPT offers a $199 lifetime plan with unlimited words.
HumanGPT's Brand Voice training feature makes it better for SEO. You can protect target keywords from being paraphrased.
Check their current features. HumanGPT checks all 7 major detectors in one click after humanizing.
StealthWriter is a focused AI humanizer. HumanGPT offers a better free tier, lifetime pricing, more features, and a built-in check across all seven major detectors. Try HumanGPT free.
Try HumanGPT free