Last updated 08-11-2026
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StealthWriter
StealthWriter is an AI detection and text humanization web app that rewrites drafts from ChatGPT, Claude, Gemini, and similar tools into natural human prose. The homepage pairs a free AI detector (up to 500 words, no account) with a humanizer that returns polished text in seconds. Ghost 5.2 Mini is the default lightweight model, and Ghost 5.2 Pro targets stronger coherence and readability.
Most AI humanizers focus on beating detectors and sacrifice readable output. StealthWriter pairs the humanizer with a built-in V2 detector and Deep Scan sentence highlighting so you see flagged lines before and after rewriting. Click any sentence to pick from alternative phrasings at ten rewrite intensity levels.
Students, bloggers, marketers, copywriters, and researchers who draft with AI assistants but need the final copy to read naturally. The free tier covers light daily use, and paid plans scale from 50 to 2,000 humanizations per day with up to 5,000 words per input.
Ghost 5.2 Mini and Ghost 5.2 Pro models ship with ten rewrite intensity levels from light edits to full rewrites
Free homepage detector scans up to 500 words with no account signup required
Deep Scan highlights flagged sentences with color-coded V2 detector scores before and after humanizing
Starter plan includes 50 humanizations per day with 5,000 words per input at $20 per month
Paid plans support German, Spanish, French, Italian, Portuguese, Dutch, Chinese, and Japanese humanization
Click any rewritten sentence to browse alternative phrasings and fine-tune the output
Built-in V2 detector shows flagged sentences before and after humanizing
Ten rewrite levels plus per-sentence alternative phrasings
Free tier with no credit card required
Supports major languages including Spanish, French, German, and Japanese
Web app runs in any browser with no download or extension
No public API for automated workflows
Free plan caps at 10 humanizations and 1,000 words per input per day
Full plan comparison table requires signing in on stealthwriter.ai
No browser extension yet
Is StealthWriter free to use?
Yes. StealthWriter offers a free plan with 10 humanizations and 10 AI scans per day, capped at 1,000 words per input. No credit card is required to sign up and start humanizing text on stealthwriter.ai.
What plans does StealthWriter offer?
StealthWriter lists Free ($0), Starter ($20 per month or $200 per year), Plus ($50 per month or $500 per year), Pro ($100 per month or $1,000 per year), and Scale ($400 per month or $4,000 per year). Paid plans allow up to 5,000 words per input.
Does StealthWriter store my text?
No. StealthWriter does not store text after humanization or scanning completes. The FAQ states submitted content is not saved, shared with third parties, or used for model training.
Which AI tools does StealthWriter work with?
StealthWriter humanizes text from ChatGPT (GPT-4, GPT-4o), Claude, Gemini, Llama, Mistral, Copilot, Jasper, and other AI writing tools. Paste any AI-generated draft and StealthWriter rewrites it.
How does StealthWriter's AI detector work?
StealthWriter's V2 scanner scores how likely text is AI-written and flags individual sentences with Deep Scan color highlights. You can scan up to 500 words on the homepage without an account.
Does StealthWriter work in languages other than English?
Yes. StealthWriter supports Spanish, French, German, Italian, Portuguese, Dutch, Chinese, Japanese, and more. Free users get Ghost 5.2 Mini; paid plans unlock Ghost 5.2 Pro for stronger humanization.
Is there a StealthWriter API?
No. StealthWriter is a web-only tool with no public API. The FAQ notes an API may be offered later, but automation is not available on stealthwriter.ai.