
StealthGPT
StealthGPT rewrites AI-generated text into natural, human-sounding writing that bypasses AI detectors such as GPTZero, Turnitin, and Originality.ai. It includes an AI humanizer, a free AI detector, a stealth writer for essays and SEO content, a research agent, chat with PDF, and a Chrome extension, plus API, MCP, Zapier, and WordPress integrations.
What is StealthGPT?
StealthGPT is an AI humanizer and undetectable writing platform that rewrites AI-generated text into natural, human-sounding prose designed to bypass AI detection tools such as GPTZero, Turnitin, Originality.ai, Winston AI, and Copyleaks. The core humanizer performs sentence-level rewrites so the meaning stays intact while removing the statistical patterns that detectors flag, and recent updates extend this to stripping invisible Claude and Gemini watermarks through structural rewriting. StealthGPT also includes a free AI detector that scans any text and returns an instant human score without requiring signup, making it easy to check content before publishing. The Stealth Writer generates fully undetectable essays complete with properly formatted citations, while the Stealth Agent researches the web, drafts long-form content, runs fact-checking where it matters, and humanizes the output in one guided workflow. Additional tools include Chat with PDF for uploading documents and getting undetectable answers, an SEO Writer for keyword-rich content, Photo to Answers for snapping a photo of questions, and a Chrome Extension that generates quiz, test, and homework answers with a human-typing feature that mimics natural keystrokes. The platform supports over 100 languages, offers tone options from standard to PhD level, and reports detection averages such as 98 percent human on Turnitin and 95 percent on GPTZero in their tests. Pricing is subscription based with Pro at 29.99 dollars per month for 50,000 words, Max at 49.99 dollars per month for 200,000 words, and Enterprise at 179.99 dollars per month with API, MCP, and custom fine-tuned models. Developers can integrate programmatically through the StealthAPI, use the MCP server inside Claude, Cursor, or n8n, and connect 8,000 plus apps through the Zapier integration. The platform is available as a web app, an iOS app, and a Chrome extension, so users can humanize text on the go or directly inside their browser workflow. Security and reliability are handled through a Zendesk-based support system, and the platform processes millions of documents with 1.5 million plus active users, indicating proven scale. The dashboard includes stealth insights that show how close the output is to human writing, analytics for tracking usage, and a rewards program where subscribers earn points redeemable for gift cards. Business teams get usage controls, invoicing, and dedicated support, while the Zapier and WordPress integrations extend the platform beyond its own interface into existing content management and automation stacks.

StealthGPT Core Features
AI Humanizer
Rewrites AI text into natural, undetectable prose with sentence-level rewriting and tone options.
Free AI Detector
Scans text instantly for a human score with no signup required.
Stealth Writer
Generates undetectable essays with properly formatted citations.
Stealth Agent
Researches, drafts, fact-checks, and humanizes content in one workflow.
Chat with PDF
Uploads documents and returns human-sounding answers instantly.
Chrome Extension
Generates quiz and homework answers with human-typing auto-typer.
Watermark removal
Strips invisible Claude and Gemini watermarks via structural rewrite.
API, MCP, Zapier, WordPress
Integrates into Claude, Cursor, n8n, and 8,000+ apps.
Who is StealthGPT for?
StealthGPT serves students who want AI-assisted essays and assignments to pass plagiarism and AI checks such as Turnitin and GPTZero. Content marketers and SEO writers use it to humanize AI-drafted articles so they rank and read naturally. Bloggers and copywriters run their drafts through the humanizer to remove robotic wording and em dashes. Freelance writers handling high volumes use Pro and Max plans for 50,000 to 200,000 words per month. Businesses and agencies use Enterprise plans with team seats, API access, and usage controls. Developers integrate StealthGPT into their own tools through the API and MCP server for automated content pipelines. Academics and researchers who need to ensure their AI-assisted writing passes detector checks also rely on the free detector and watermark removal features. University students managing multiple assignments use Pro for weekly essays and reports, while graduate students with heavier workloads choose Max. Professional content agencies run client work through the API with Enterprise-level word volumes. SEO consultants humanize AI-drafted articles before publishing to protect client sites from detection penalties. Copywriters use the enhancer and simplifier tools to polish drafts. Researchers writing academic papers use the humanizer with citation support to keep their writing natural. Social media managers batch-humanize captions and posts. Non-native English speakers use the multilingual support to refine AI writing in their target language. Educational technology companies integrate StealthGPT into their writing tools through the API and MCP server.
StealthGPT Use Cases
Humanize AI essays and assignments to pass Turnitin and GPTZero checks.
Rewrite blog articles and SEO content so they read naturally and rank higher.
Remove invisible Claude or Gemini watermarks from AI-generated drafts.
Check any text with the free AI detector before publishing or submitting.
Generate undetectable long-form content with the Stealth Agent workflow.
Answer homework and quiz questions from photos via the mobile-style flow.
Automate content pipelines with the API, MCP server, or Zapier integration.
Produce academic essays with in-text citations and stealth insights.
StealthGPT Pros and Cons
Pros
- Comprehensive toolkit covering humanizer, detector, writer, agent, and PDF chat.
- Reported high success rates against GPTZero and Turnitin with constant model updates.
- Generous monthly word allowances from 50,000 to 200,000 words on standard plans.
- Multiple integrations including API, MCP, Zapier, WordPress, and Chrome extension.
Cons
- Ethical considerations around academic integrity and detector bypass.
- Monthly word limits can be restrictive for high-volume enterprise workloads.
- Some features like in-text citations are tied to the higher Samurai tier.
FAQ About StealthGPT
StealthGPT Pricing
Freemium. Free AI detector with no signup; Pro $29.99/month (50k words), Max $49.99/month (200k words), Enterprise $179.99/month (1M+ words, API & MCP).
Check official pricingFree
AI detector, human score check, no signup required
Pro
50,000 words/month, 1,000 words per request, humanizer, detector, all languages
Max
Most popular; 200,000 words/month, 2,000 words per request, 3 teammate seats
Enterprise
1,000,000+ words/month, 10,000 words per request, API, MCP, custom models
StealthGPT Alternatives
Mask AI
Mask AI is an AI humanizer that converts AI-generated text into natural, human-sounding content designed to pass leading AI detectors like Turnitin and GPTZero. It also includes an AI detector, plagiarism checker and remover, and an AI writer, making it a complete toolkit for students, writers, and content teams.
Undetectable AI
Undetectable AI is a platform that humanizes AI-generated text so it passes major AI detectors while remaining high quality and legible. It combines an AI humanizer with an AI detector, writing level matching, and watermark and future-proofing features. Plans include unlimited detection, API compatibility, and an unlimited Human Auto Typer, with a small free trial and paid word-based subscriptions.
StealthWriter
StealthWriter is an AI text humanizer and detector that rewrites content from ChatGPT, Claude, and Gemini so it reads as naturally human-written. It includes a V2 AI detector, deep scan, sentence-level fine-tuning, and multiple rewrite levels, with a free plan and paid tiers for higher volume.