StealthWriter is an AI text humanizer with a built-in AI detector. You paste AI-generated writing, choose a light, medium or aggressive rewrite level, and get text rewritten with more natural phrasing, rhythm and flow. A deep scan shows sentence-by-sentence results with color-coded highlights, and you can click any sentence to pick from alternative rewrites. A free plan is available at $0, and paid plans start at $20 per month for Starter, then Plus at $50, Pro at $100, Business at $200 and Scale at $400.
It is meant for writers, marketers, copywriters, researchers and other professionals who draft with AI and want the result to read like their own voice. Agencies and teams can choose the Business or Scale tier for heavier volume, with priority team support. The plans differ mainly in daily limits: Free allows 10 humanizations and 10 AI scans per day with 1,000 words per input, while paid tiers raise this to 5,000 words per input and up to 2,000 daily humanizations on Scale. Enterprise buyers can arrange custom volume and invoicing.
A content marketer can run a blog draft through the humanizer, scan it with the detector and fine-tune the flagged sentences. A freelance copywriter can polish client drafts before delivery, and a researcher can smooth the phrasing of a summary. An agency can process many documents a day and keep a record of scan results across the team. Users can scan before and after humanizing to see which sentences still need work. Free plan users get the Ghost 5.2 Mini model, while paid plans add Ghost 5.2 Pro and legacy models. Submitted text is not stored or shared, according to the product FAQ.