🧠 Introduction
StealthGPT has grown fast, now boasting over 1.2 million users — making it one of the most widely used AI humanizers on the market. It claims to help students, professionals, and creators generate undetectable AI writing that beats Turnitin, GPTZero, and other top detectors.
But is it legit?
We tested StealthGPT’s humanizer, its AI detector, and reviewed its pricing and features to see if it lives up to the hype.
🚀 What Is StealthGPT?
StealthGPT is an AI writing platform that includes an AI humanizer, AI detector, SEO writer, and study tools. It claims to beat any AI detector and provide “undetectable AI” for papers, reports, and other writing.
It offers:
- AI Humanizer
- AI Detector
- Stealth Writer
- SEO Writer
- Study Simulator
- Photo to Answer tool
- Chrome Extension
- iOS App
The user interface recently got a major redesign, it’s slick, dark-themed, and responsive. The UX is a major improvement over earlier versions.
💸 Pricing
StealthGPT offers four plans.
| Plan | Price/Month | Key Features |
|---|---|---|
| Essential | $24.99 | Unlimited Words, AI Humanizer, Study Simulator, iOS App |
| Pro | $34.99 | Adds Chat with Stealth, 100+ Languages, Extreme Mode |
| Business | $49.99 | Adds SEO Writer |
| Enterprise | $249.99 | Unlimited Everything |
Note: yearly billing gives you 30% off.
🧪 Test: Is the AI Detector Accurate?
StealthGPT includes its own AI checker. We tested it using:
- A 100% ChatGPT-generated essay
- A human-written essay
📋 Results:
| Test Content | AI Detection Score |
|---|---|
| AI-Generated Text | 46% AI |
| Human-Written Text | 0% AI |
🧠 Verdict: The AI detector is weak. A 46% score on ChatGPT text is low, especially when other detectors score it at 95–100%. The human detection at 0% is solid, but Stealth GPT isn’t reliable for detecting AI in most use cases.
🧪 Test: Does the Humanizer Work?
We ran the same 100% ChatGPT text through the StealthGPT Humanizer, using both:
- GPTZero-Optimized
- Turnitin-Optimized
Here's what we found:
❌ Major Problems
- Doesn't bypass: The "humanized" text still flagged as AI in our GPTZero (Model 3.11b) and Turnitin testing.
- Forced optimization choice: You have to pick either GPTZero OR Turnitin optimization. Why not both? This makes no sense for users trying to bypass multiple detectors.
🧠 Verdict: It doesn’t bypass major AI detectors effectively.
Both Turnitin and GPTZero flagged the rewritten text as 100% AI.
🎯 StealthGPT vs TwainGPT
Let’s compare StealthGPT to TwainGPT.
| Feature | StealthGPT | TwainGPT |
|---|---|---|
| Free Access | ❌ No | ✅ Yes |
| Bypass GPTZero & Turnitin | ❌ No | ✅ Yes |
| AI Detector | ⚠️ Weak | ✅ Strong |
| Queue Times | ✅ Instant | ✅ Instant |
| Pricing | 💸 Starts at $24.99 | 💸 Starts at $10 |
🖥️ Features Breakdown
Here’s a breakdown of what StealthGPT includes across its plans:
| Feature | Included? |
|---|---|
| AI Humanizer | ✅ Included in all plans |
| Stealth Writer | ✅ Write AI content in one tool |
| Study Simulator | ✅ Create quizzes and study guides |
| Photo to Answer | ✅ Snap a pic, get answers instantly |
| SEO Writer | ✅ For content marketing |
| Chrome Extension | ✅ Real-time webpage rewriting |
| iOS App | ✅ Mobile support |
| AI Detector | ✅ Built-in, but weak |
| Third-Party Integrations | ⚠️ Coming soon |
The Study Simulator and Photo-to-Answer tools are great additions, especially for students.
🧠 UX and Design
StealthGPT’s new UI is a major upgrade. It’s responsive, dark-themed, and clean.
- Easy to navigate
- Looks modern and professional
- Offers light mode
✅ Verdict: Is StealthGPT Worth It?
Not if you want to bypass AI detectors.
While StealthGPT has improved its design and added a bunch of features, the AI humanizer fails to bypass major AI detectors like GPTZero and Turnitin.
This is likely due to recent GPTZero updates and the August Turnitin update.
StealthGPT is a decent platform for study help or SEO tools, but as an AI humanizer, TwainGPT is a far better choice.
✅ Use TwainGPT to bypass Turnitin and GPTZero.
📌 FAQ
Can StealthGPT bypass Turnitin or GPTZero?
No. Our tests show that StealthGPT doesn't bypass Turnitin or GPTZero.
Is StealthGPT's AI Detector reliable?
Not really. It scored 46% AI on an AI-generated sample.
Is StealthGPT free?
No, there’s no free tier. Pricing starts at $24.99/month.
What’s better than StealthGPT?
TwainGPT is the best AI humanizer available.