Launched 2023 · Verified Oct 22, 2026

StealthGPT

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AI Detection & Humanizers2Write a reviewUnited StatesEffect67/ 100

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Rewrites AI-generated text to slip past AI detectors

ai humanizerai detection bypassai detectoressay writerchrome extensionPaid

Listed on EffectHub · Aug 16, 2026

Web · API · Chrome extension · iOS

Screenshot of the StealthGPT website — stealthgpt.ai as we captured it — our own screenshot, not the vendor’s press image.

Pricing

Pricing model: Paid

Subscription plans with daily request caps and per-request word limits; the pricing page answered HTTP 429 to every fetch today and third-party listings disagree on the figures, so no price is recorded. The home page advertises a $1 three-day trial and a 15% first-month discount; the detector offers one free scan without sign-up.

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Overview

About StealthGPT

StealthGPT rephrases machine-written text so that classifiers such as Turnitin and GPTZero score it as human-authored, in a light mode and a full-rewrite mode, and wraps that core in its own detector, an essay writer with citations, a research-and-draft agent, PDF chat and SEO drafting. Access runs through the web app, an iOS app, a Chrome extension that types the rewritten text into any field, a documented REST API, an MCP server for Claude and Cursor, and connectors for n8n, Zapier and WordPress. It is operated by XYZ AI, Inc., which has sold the humanizer since 2023 and now also markets watermark removal for Claude, ChatGPT and Gemini output.

Platforms: Web · API · Chrome extension · iOS
API: Yes
Last verified: Oct 22, 2026

Verified sources

Home page: Humanizer with Lite and Super modes, AI detector with a free first scan, Stealth Writer with citations, Stealth Agent, Chat with PDF, SEO Writer, Chrome extension v3.0, iOS app, API, MCP for Claude and Cursor, Zapier, n8n and WordPress connectors, watermark removers for Claude, ChatGPT and Gemini; Enterprise up to 20,000 words per run; $1 three-day trial banner; footer XYZ AI, Inc. (15 October 2026)stealthgpt.ai ↗
Pricing page returned HTTP 429 to every fetch, so plan prices could not be read; third-party listings quote Essential between $17.50 and $35 a month and disagree with each other (15 October 2026)stealthgpt.ai ↗
Public REST API with published reference documentationdocs.stealthgpt.ai ↗
Jozef Gherman is CEO of XYZ AI Inc., the entity behind StealthGPTtheorg.com ↗

Fact check

Is StealthGPT legit?

We don’t label tools safe or unsafe. Below are the records we checked ourselves, each with the date we read it.

Domain registered: Feb 3, 2023 (3 years ago)Registry record (RDAP), registrar GoDaddy.com, LLC, looked up Sep 18, 2026
TLS certificate: Issued by Let's Encrypt, valid until Dec 8, 2026Seen in our own connection to the site on Oct 22, 2026
Last checked: Oct 22, 2026The site answered
On the market since: 2023The vendor's own material, read by us
Operated by: XYZ AI, Inc., United StatesOur research, card verified Oct 15, 2026

How we collect these records

Editorial verdict

Pros & cons of StealthGPT

medium confidence

The only thing here that competitors do not match is the developer surface — REST API, MCP server and n8n node — so this is the humanizer you pick if you are automating a content pipeline, not the one you pick to write an essay. Everything it sells is a bet on an arms race the detector vendors are also funding.

Pros

Genuine developer stack — documented API reference plus an MCP server, which rivals lack
Bundled detector lets you check before and after in one place
Chrome extension humanizes directly in any text field
Enterprise tier handles up to 20,000 words per run

Cons

Pricing page is behind a Vercel bot check, so prices cannot be compared without signing up
Daily request caps sit behind plans that market themselves as unlimited
Rewriting reliably flattens nuance and introduces awkward phrasing that needs an editing pass
Positioning around beating Turnitin invites institutional and reputational risk

Best for

Content operations running bulk rewriting through an API or n8n workflow
Non-native English writers softening obviously templated LLM prose
Agencies that need humanizing inside an existing WordPress or Zapier stack

Not for

Students at institutions that classify detector evasion as academic misconduct
Anyone who needs a guaranteed, durable pass rate against a named detector

Watch out: Any measured pass rate is a snapshot — detector vendors retrain, and a plan bought on this month's results can stop working next month with no refund path.

#1inAI Detection & Humanizers· of 28 tools, ranked by rating and popularity

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