StealthWriter is an AI humanizer and AI detector that rewrites AI-generated drafts into natural, human-sounding text, aimed at writers, marketers, and researchers.
About
StealthWriter is a web-based writing tool that rewrites AI-generated text so it reads like natural human writing, and it includes a built-in AI detector for checking results. It addresses a common problem for people who draft with AI assistants such as ChatGPT, Claude, or Gemini: the output often carries stiff, formulaary phrasing that does not read like something a person wrote.
The workflow is straightforward. A user pastes AI-drafted text, chooses from light, medium, or aggressive rewrite levels, and receives a revised version designed to have natural tone, rhythm, and flow. A sentence-level Deep Scan highlights which parts still need attention, and clicking any sentence offers alternative rewrites for fine-tuning. The built-in detector can scan text before and after rewriting. StealthWriter is a service of AiVantage LLC and processes text quickly, returning results in seconds. Submitted text is not stored after processing, according to the vendor.
Key Features
Pricing & Fees
- Pricing: Free at $0 (10 humanizations and 10 scans per day, 1,000 words per input); Starter at $20/mo or $200/year (50 per day); Plus at $50/mo or $500/year (150 per day); Pro at $100/mo or $1,000/year (350 per day); Business at $200/mo (800 per day); Scale at $400/mo or $4,000/year (2,000 per day). Enterprise plans are custom-priced.
- Free tier: Available with no credit card required, including access to the humanizer, AI detector, and Deep Scan.
- Input limits: Free plan accepts 1,000 words per input; all paid plans accept 5,000 words per input.
- Privacy: The vendor states submitted text is not stored after processing, is not shared with third parties, and is not used for training.
Who It's For
StealthWriter is aimed at writers, marketers, copywriters, researchers, and other professionals who use AI to draft content and want the final result to read naturally. Typical uses include polishing blog posts, marketing copy, emails, and research writing that started as AI output. It also suits anyone who wants a second opinion on whether a draft reads as AI-written, since the detector works on any pasted text up to the plan's word limit. Higher-tier plans target agencies and heavy users with larger daily volumes.
FAQ
What is StealthWriter?StealthWriter is a tool that humanizes AI text and includes a built-in detector. It takes AI-generated content from tools like ChatGPT, Claude, or Gemini and rewrites it so it reads as naturally human-written.
Is there a free plan?Yes, the free plan includes 10 humanizations and 10 AI scans per day with 1,000 words per input, and no credit card is required to sign up.
Which AI writing tools does it work with?It works with text generated by any AI assistant, including ChatGPT, Claude, and Gemini, since users simply paste the text into the web app.
How is StealthWriter different from other AI rewriting tools?The vendor says most rewriting tools produce awkward, error-filled text, while StealthWriter delivers clean output in under 10 seconds with sentence-level fine-tuning and multiple rewrite levels.
Is submitted text stored or shared?No, according to the vendor, text is not stored after processing, is not shared with third parties, and is not used for model training.
Is the rewritten text original?Yes, StealthWriter generates original rewrites from the pasted input rather than copying from existing sources.
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