Overview

StealthWriter combines adjustable rewriting for AI-assisted drafts with an AI detector that returns overall and sentence-level estimates. It best suits writers, marketers, and professionals refining text; the trade-off is that rewrites can alter details, so every output needs review.

Key features

Light, medium, and aggressive rewrite levels give users control over how much a draft changes. That range suits both light polishing and broader rephrasing, but stronger changes make a careful check against the original especially important. The maker advises reviewing rewrites because wording changes can affect details or claims.

The detector estimates how likely text is to be flagged as AI-generated and points to sentence-level feedback alongside its overall estimate. Treat that as an editing signal, not a guarantee of how another system will assess the text. The public demo accepts up to 500 words per scan, recommends at least 100 words, and has daily limits.

StealthWriter says it works with text from ChatGPT, Claude, Gemini, Llama, Mistral, Copilot, Jasper, and other tools. Its FAQ names Spanish, French, German, Italian, Portuguese, and Dutch among supported languages. Free users get Ghost 5.2 Mini; paid plans also include Ghost 5.2 Pro and Ghost Legacy.

The privacy policy says submissions are screened by a moderation tool, then processed or rejected; accepted text is not stored or used to train models, though it may be shared with infrastructure providers needed to run the feature. The service prohibits using it to misrepresent authorship or bypass AI-detection, plagiarism, academic, workplace, or platform review.

Pricing

The free plan costs 0.00 USD per free and allows 10 humanizations and 10 AI scans daily, with a 1,000-word input cap and Ghost 5.2 Mini. It is a useful way to try both tools, but the daily quotas and smaller input limit constrain regular or longer-form work.

Starter costs 20.00 USD per month (billed $20 USD/mo) and raises the daily allowance to 50 humanizations and scans, allows 5,000 words per input, and adds Ghost 5.2 Pro and Ghost Legacy. It fits individual users who regularly revise longer drafts. Plus costs 50.00 USD per month (billed $50 USD/mo) for 150 daily humanizations and scans; Pro costs 100.00 USD per month (billed $100 USD/mo) for 350. Both keep the same 5,000-word input cap and model selection, so their practical distinction is higher daily volume.

Business costs 200.00 USD per month (billed $200 USD/mo) for 800 daily humanizations and scans, with priority team support. Scale costs 400.00 USD per month (billed $400 USD/mo) for 2,000 of each per day, also with priority team support. These tiers target teams with heavier workloads; Enterprise has custom pricing and a 5,000-word input cap. No plan increases the per-input limit beyond 5,000 words.

Platforms

StealthWriter is a browser-based web app that works in modern browsers on desktop, tablet, and mobile, with no required download or extension. It has no public API. Its browser reach is convenient across device types, but users who need API integration should look elsewhere.

Who it's for

StealthWriter is a practical fit for writers, marketers, and professionals who want adjustable rewrites and detector feedback in one browser-based service. It is not appropriate for anyone seeking to disguise authorship or get around academic, workplace, platform, or other review systems.

Pros and cons

Pros: Three rewrite strengths let users choose the degree of change, while sentence-level detector feedback can help focus an editorial review.
Pros: The free plan includes both daily rewriting and scanning, and paid plans raise those quotas while adding model choices.
Cons: The free plan's 1,000-word input cap and 10 daily uses of each feature may not suit sustained work.
Cons: Rewrites can shift details or claims, and detector estimates are not guarantees; users must check the text themselves.
Cons: There is no public API, and every paid tier retains the 5,000-word input cap.

Alternatives

WriteHuman has a free plan with 3 humanizer requests per month, 250 words per request, one output variation, and 10 detection checks per month; it is a better fit for occasional, short requests than StealthWriter's daily free allowances.

Rephrasy offers a Growth plan at 8.25 USD per month, billed Billed $99 yearly, with 100 humanizations monthly, up to 2,000 words each, and a Chrome Extension; choose it if a lower-cost annual plan and extension matter more than StealthWriter's larger per-input allowance and detector feedback.

Walter Writes AI has a paid-only model and a free trial; its Starter plan costs 8.00 USD per year, billed Billed $96 Annually, and includes 30,000 words per month with 750 words per request. Consider it if that lower request size and annual plan suit your needs.

Humanize AI has a free plan with 1,500 words per month, a 300-word check limit, Ultra Mode, and no credit card requirement. It may suit users who prefer a monthly allowance to StealthWriter's daily quotas.

StealthGPT is a paid option with no free plan, for readers considering another service.

254labs Ghost Mode Humanizer offers a free web plan with 800 words per month, four writing modes, Ghost Mode access, and an unlimited AI detector; it suits users whose monthly volume is modest.

Bypass Engine has a free web plan with 50 credits, an unlimited AI detector, a 500-word bypasser, a 50-word custom model, and 85 languages; consider it if those limits and language coverage fit your workflow.

HumanizeAI.io offers a free web plan with unlimited words overall but limited words per request, and free requests without signup return the next day; it may suit users willing to work within that request pattern.

Browse more options in AI Text Humanizers, AI Paraphrasing Tools, or AI writing assistants.

Verdict

Choose StealthWriter if you want adjustable rewriting and AI-detection estimates in one browser-based tool, with paid tiers that scale daily usage. Its strongest case is the combination of rewrite controls and sentence-level feedback; look elsewhere if you need an API, higher per-input limits, or a tool for evading authorship and review rules.

	Rephrase AI	StealthWriter
Free plan	Yes	Yes
Free trial	Yes	No
Paid from	$29/mo	$20/mo
Open source	No	No
Platforms	Web	Android, iOS, Web
Free plan	Yes	Yes
Tone controls	Yes	Yes
Length controls	Yes	—
Paid from	—	20 /mo
Word limit	—	5,000 words
API access	—	No

Rephrase AI vs StealthWriter

Rephrase AI

StealthWriter