S
Detection
Humanize AI text with a built-in AI detector
AI HumanizerAI DetectionContent Writing
StealthWriter rewrites AI-generated content from tools like ChatGPT, Claude, or Gemini so it reads with natural human phrasing, rhythm, and flow. It includes a built-in AI Detector with sentence-by-sentence Deep Scan and color-coded highlights, plus alternative rewrites you can click through to fine-tune the output to your own voice.
- Best for
- Writers, marketers, copywriters, and researchers who draft with AI and want the output to read naturally, with clear phrasing and no generic AI tone.
- Pricing
- Free plan available (10 humanizations/day, 10 AI scans/day, no credit card required). Paid plans from $20/mo (Starter) to $400/mo (Scale), with discounted annual billing.
Core features
- • AI text humanizer with light, medium, and aggressive rewrite levels
- • Built-in AI Detector (V1/V2) for scanning text before and after humanizing
- • Deep Scan: sentence-by-sentence analysis with color-coded highlights
- • Alternative rewrites for fine-tuning individual sentences
- • Fast processing — humanized text returned in seconds
- • No text storage after processing, not used for AI training
Use cases
- 1. Rewriting AI-drafted content so it reads naturally before publishing
- 2. Checking a draft's AI-detection score before and after humanizing
- 3. Fine-tuning individual sentences to match your personal writing voice
- 4. Marketers and copywriters polishing AI-assisted first drafts at scale
- 5. Researchers and professionals refining AI-assisted writing for clearer phrasing
How to use
Paste your AI-generated text and scan it with the AI Detector to see its current score, then humanize it at a light, medium, or aggressive rewrite level. Use Deep Scan to see which sentences still read as AI-generated, and click any sentence to pick from alternative rewrites until it matches your voice.
Pricing plans
Free
$0/mo
- • 10 humanizations/day, 10 AI scans/day
- • 1,000 words per input
- • Includes V2 detector and Deep Scan
- • No credit card required
Starter
$20/mo (or $200/year)
- • 50 humanizations/day, 50 AI scans/day
- • 5,000 words per input
Plus
$50/mo (or $500/year)
- • 150 humanizations/day, 150 AI scans/day
- • 5,000 words per input
Pro
$100/mo (or $1,000/year)
- • 350 humanizations/day, 350 AI scans/day
- • 5,000 words per input
Scale
$400/mo (or $4,000/year)
- • 2,000 humanizations/day
- • 5,000 words per input
FAQ
Is StealthWriter free to use?
Yes — the free plan includes 10 humanizations and 10 AI scans per day with no credit card required.
Is my text stored or used for training?
No — text submitted for humanizing or scanning is not stored after processing, not shared with third parties, and not used for training.
Is the rewritten text original?
Yes — StealthWriter generates original rewrites from your input rather than copying from existing sources.
Where it holds up
- Choose light, medium, or aggressive rewrite levels depending on how much the text needs to change
- Built-in AI Detector lets you scan text before and after humanizing to see what still needs work
- Deep Scan highlights sentence-by-sentence what still reads as AI-generated
- Alternative rewrites let you click any sentence and pick from multiple options to match your voice
- Submitted text is not stored after processing and is never used for training
- Genuinely free plan with no credit card required
Where it falls short
- Free plan is capped at 10 humanizations and 10 scans per day, with a 1,000-word input limit
- Higher daily volume requires progressively pricier plans, up to $400/mo for 2,000/day
- Using AI humanizers to pass detection checks can conflict with academic, platform, or publisher policies depending on context
