StealthGPT is an AI humanizer and undetectable AI writer that rewrites AI-generated text so it reads naturally and passes AI-detection tools, for students, writers, and businesses.
About
StealthGPT is a web-based AI writing platform whose core purpose is to rewrite AI-generated text so that it reads as human writing and is not flagged by AI-detection tools. The company states a 99% detection-bypass rate and says the product is used by more than 1.5 million individuals and over 350 businesses. Beyond humanizing existing drafts, the platform also generates original essays, SEO articles, and social posts, and includes its own AI detector, watermark detection and removal utilities, and a set of workflow integrations.
The basic workflow has three steps: paste AI-generated text, run it through the humanizer, then verify the result and submit it. Humanization works at the sentence level, which the company says also removes invisible watermarks that Claude and Gemini embed in their output. StealthGPT supports text in more than 250 languages, offers an API and MCP connections, and integrates with WordPress, Zapier, and Chrome. An AI detector on the site returns a human score for any pasted text without requiring sign-up.
Key Features
Pricing & Fees
- Pricing: Not publicly listed on the pages we reviewed; check the official site for current plans. The site advertises a $1 three-day trial for new users and a 15% discount offer.
- Free tools: The AI detector requires no sign-up, and the site lists free utilities including a summarizer, grammar checker, text simplifier, and formalizer.
- Scale limits: Enterprise plans support humanizing up to 20,000 words in a single run; other plans handle up to 3,000 words, with long inputs split and processed in parallel.
- Language coverage: Humanization works across more than 250 languages, with the site itself available in roughly nine languages including English, Spanish, French, German, and Chinese.
Who It's For
StealthGPT is aimed at students preparing essays and assignments, professional writers and journalists refining drafts, content writers and creators producing SEO articles and social posts at volume, and businesses that need team plans, usage controls, and invoicing. AI product reviewers and marketers who publish AI-assisted content and want it to read naturally and avoid detector flags are also explicit target users. Developers can build on the API and MCP integrations to embed humanization into automated publishing pipelines.
FAQ
What is StealthGPT?StealthGPT is an AI humanizer and undetectable AI writer that rewrites or generates text designed to pass AI-detection tools, used by students, writers, and businesses.
Is StealthGPT free?The platform offers free tools such as its AI detector, which needs no sign-up, along with free summarizing and grammar-checking utilities; paid plans exist, and new users can currently start with a $1 three-day trial, though full plan pricing is not publicly listed on the pages reviewed.
What platforms and integrations does StealthGPT support?It works through a web app, a Chrome extension, a WordPress plugin, Zapier, an API, and MCP clients such as Claude, Cursor, and n8n.
Which AI detectors and watermarks does StealthGPT address?The company claims a 99% bypass rate against major AI detectors and provides tools to detect and remove Claude, OpenAI textGrain, and Google SynthID watermarks.
How much text can StealthGPT process at once?Standard plans handle up to 3,000 words per humanization, while Enterprise plans process up to 20,000 words by splitting long inputs and humanizing them in parallel.
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