If you're choosing between Realword and StealthWriter, you're probably asking one specific question: which one actually passes Turnitin, GPTZero, and Copyleaks without making your writing sound like a robot trying to sound human?
Both tools promise to humanize AI text. But they work differently, price differently, and produce very different results when a real detector runs the scan. Here's what you need to know before you commit.
What StealthWriter Does
StealthWriter is a standalone AI humanizer. You paste in AI-generated text, pick a rewriting mode, and get back a version designed to fool detectors.
It runs on two engines: Ghost Mini, the lighter option aimed at casual use, and Ghost Pro, the more aggressive rewriter targeting tougher detectors. There's also an intensity slider and a handful of presets to nudge the output toward different tones or use cases.
The interface is clean and simple. You don't need to understand how it works to get started, which is a genuine strength for writers who just want a fast solution.
StealthWriter has a free tier with limited monthly words, making it easy to test. Paid plans run roughly $20 to $50 per month based on third-party reports, depending on word volume and which engine you're accessing.
Where StealthWriter Falls Short
The problem isn't the interface. It's the results.
Independent testing against Turnitin, GPTZero, and Originality.ai has shown inconsistent bypass rates. Ghost Mini often fails outright on Turnitin. Ghost Pro performs better but still produces detectable output on Originality.ai in a meaningful share of tests. The results vary enough that you can't rely on it when a failed scan has real consequences, whether that's a client rejection or an academic penalty.
There's also no voice matching. StealthWriter rewrites your text, but it doesn't know anything about how you write. Every output sounds like the same generic "humanized" prose. If you're a freelancer delivering work under your own name, or an agency maintaining a consistent brand voice across dozens of articles, that's a real problem.
And StealthWriter is only a rewriter. It doesn't research topics, draft articles, check your AI score sentence by sentence, or optimize for AI answer engines. You bring the text; it transforms it. That's the whole product.
What Realword Does Differently
Realword is built around a four-step pipeline: live web research, drafting in your voice, sentence-level humanization, and an AI score check before you publish. The humanizer isn't a bolt-on feature, it's one layer of a system designed to produce content that passes detectors and gets cited by AI answer engines like ChatGPT, Gemini, and Perplexity.
The Hybrid Humanizer
The key differentiator on the detection side is the Hybrid Humanizer, available on Pro and Max plans. It's engineered specifically to bypass Turnitin, GPTZero, and Copyleaks. Not "designed to help with" those detectors. Engineered to bypass them.
The standard AI Humanizer rewrites across 7 styles, 10 content types, and 95+ languages with native rhythm rebuilding. The Hybrid Humanizer goes further, applying an additional layer that targets the exact patterns these three detectors flag. That distinction matters when you're submitting academic work, delivering client content, or publishing under your own name.
Writing DNA
This is where Realword has no direct competition from StealthWriter, or from most humanizers on the market.
Writing DNA learns from writing samples you provide. It builds a voice profile from your actual sentences, word choices, and rhythm patterns, then applies that profile to every article and humanization pass. The result doesn't just sound human. It sounds like you.
Pro plans support 5 Writing DNA profiles. Max supports 10, with shared profiles across up to 5 team members. If you run an agency and need every writer's output to match a single client voice, that's the feature that makes it possible.
StealthWriter has no equivalent. Its output is consistent in the sense that it always sounds the same, but that "same" isn't your voice or your client's voice. It's the tool's voice.
The AI Score Checker
Before you publish anything, Realword's AI Score Checker breaks your content down sentence by sentence, flags the lines that read as AI-written, and sends them to the humanizer in one click. You can see exactly where the risk is and fix it surgically, rather than rewriting entire paragraphs blind.
StealthWriter doesn't offer this. You paste, rewrite, and hope.
Head-to-Head Comparison
| Feature | StealthWriter | Realword |
|---|---|---|
| AI humanization | Yes (Ghost Mini / Ghost Pro) | Yes (AI Humanizer + Hybrid Humanizer) |
| Turnitin bypass | Inconsistent (Ghost Pro only) | Engineered bypass (Hybrid, Pro/Max) |
| GPTZero bypass | Partial | Engineered bypass (Hybrid, Pro/Max) |
| Copyleaks bypass | Inconsistent | Engineered bypass (Hybrid, Pro/Max) |
| Personal voice matching | No | Yes (Writing DNA) |
| Sentence-level AI scoring | No | Yes |
| Full article creation | No | Yes (up to 5,000 words) |
| Live web research | No | Yes |
| GEO / AEO optimization | No | Yes |
| Free tier | Yes | Yes (50 one-time credits) |
| Team support | No | Yes (Max plan, up to 5 seats) |
| Languages | Limited | 95+ |
Who Should Use StealthWriter
StealthWriter makes sense if you need a quick, low-stakes rewrite and you're not worried about Turnitin specifically. The free tier is useful for testing. Ghost Pro handles lighter detection scenarios reasonably well.
If your content never goes near Turnitin, you're not delivering work to clients who check AI scores, and you don't care whether the output sounds like you or like a generic rewrite, StealthWriter is a functional option.
Who Should Use Realword
If any of the following apply, Realword is the stronger choice:
- You deliver work to clients who run AI detection checks
- You're submitting academic content where Turnitin is in play
- You want the output to actually sound like you wrote it
- You're producing 10 or more articles a month and need a full workflow, not just a rewriter
- You want your content cited in ChatGPT, Gemini, or Perplexity answers, not just ranked on Google
- You run an agency and need consistent voice across multiple writers
The Hybrid Humanizer alone addresses the core failure point that independent tests keep finding with StealthWriter. Add Writing DNA and the sentence-level score checker, and you're working with a system, not a single-function tool.
A Note on Pricing
StealthWriter's paid plans sit in the $20 to $50 per month range. Realword's Pro plan is $31 per month, putting the Hybrid Humanizer, Writing DNA with 5 profiles, unlimited word generation, and credit rollover within reach of most freelancers.
The Free tier gives you 50 one-time credits to test the full platform before committing to anything.
The Honest Summary
StealthWriter was an early mover in the AI humanizer space. The UX is clean, the free tier is accessible, and Ghost Pro handles some detection scenarios adequately. It's not a bad tool for casual use.
But it has a real ceiling. Inconsistent results against Turnitin and Originality.ai, no voice matching, no sentence-level scoring, and no content creation pipeline mean it can't serve the full workflow that most serious writers and agencies need.
Realword is built for the writer who needs to know the content will pass, sound right, and perform in AI search, not just survive a single detector scan.
Start writing free at realword.ai.
FAQs
Does StealthWriter pass Turnitin?
Results from independent testing are inconsistent. Ghost Pro performs better than Ghost Mini, but neither reliably bypasses Turnitin across all content types. If Turnitin is a hard requirement, that inconsistency is a meaningful risk.
Does Realword's Hybrid Humanizer pass Turnitin, GPTZero, and Copyleaks?
The Hybrid Humanizer is specifically engineered to bypass all three. It's available on Pro and Max plans at realword.ai.
What is Writing DNA and does StealthWriter have it?
Writing DNA is Realword's voice-matching system. It learns from your writing samples and applies your personal voice to every output. StealthWriter has no equivalent.
Can I try Realword for free?
Yes. The Free tier gives you 50 one-time credits with no payment required. You can test the AI Humanizer and AI Score Checker before upgrading. Full article generation runs 500 credits, available via the Starter plan or the $2 one-time trial.
Is Realword only a humanizer or does it write full articles?
Realword covers the full pipeline: live web research, article drafting up to 5,000 words with SEO and AEO optimization, humanization, and AI score checking. StealthWriter only rewrites text you provide.
Which tool is better for agencies?
Realword's Max plan supports up to 5 team members with shared Writing DNA profiles, credit pooling, and up to 10 voice profiles. StealthWriter has no team features.
Does Realword work in languages other than English?
Yes. The AI Humanizer supports 95+ languages with native rhythm rebuilding. The Free tier is English only; multilingual support is available on paid plans.