StealthGPT
stealthgpt.ai
AI writing and humanizing tool for undetectable content.
Quick Information
- Category:
- Writing & Chat
- Pricing:
- Paid
- Platforms:
- Web, Chrome extension
- Free Plan:
- No
- Last Verified:
- September 2026
What Is StealthGPT?
StealthGPT is an AI writing and humanizing tool marketed for producing undetectable content, expanding into a broader ecosystem including an AI content generator, built-in AI detector, SEO writer, study simulation tools, and Chrome extension. Pricing runs Essential at $34.50/month, Business at $100.50/month, and Enterprise at $499.50/month — the premium Samurai engine (marketed as best for bypassing Turnitin specifically) costs an additional $5/month unless already on Pro or higher.
A genuinely important honest caveat about its core "undetectable" claim: independent testing tells a more nuanced story than the marketing suggests — a June 2026 cross-detector test found StealthGPT content flagged as AI-generated at a mean rate of 24.5% across six different detection tools (19% GPTZero, 25% Turnitin, 31% Originality.ai, 23% Copyleaks, 21% QuillBot, 28% ZeroGPT), meaning roughly a quarter of content was still detected as AI-generated across major detectors despite the "completely undetectable" marketing claim.
It's aimed at users wanting to reduce AI-detection flagging on generated content, with the important honest caveat that independent testing shows real, non-trivial detection rates (roughly 19-31% depending on the specific detector) rather than the "completely undetectable" positioning suggested by marketing — anyone relying on this for high-stakes situations (academic submissions, professional contexts with detection consequences) should understand this real residual detection risk before assuming guaranteed undetectability. See our Writing & Content tools directory for related tools like Undetectable AI and QuillBot.
What Can You Use StealthGPT For?
AI content humanization
Rewrites AI-generated content to reduce detection flagging.
AI content generation
Generates original content using AI, with humanization built in.
Turnitin-specific bypass attempts
Uses the premium Samurai engine specifically targeting Turnitin detection.
StealthGPT Features
- Samurai engine (add-on) — A premium humanization engine marketed for bypassing Turnitin, costing an additional $5/month.
- Built-in AI detector — Provides its own AI detection tool alongside humanization features.
- SEO writer — Generates SEO-focused content as part of the broader ecosystem.
Who Is StealthGPT For?
- Content creators — Uses AI humanization to reduce detection flagging on generated content.
- Users needing SEO content — Uses the built-in SEO writer alongside humanization tools.
StealthGPT Pros & Limitations
What We Like
- Broad feature ecosystem spans generation, humanization, detection, and SEO writing
- Specialized Samurai engine specifically targets Turnitin detection for academic contexts
- Multiple pricing tiers accommodate different usage volumes
Limitations
- Independent testing shows real, non-trivial AI-detection rates (19-31% depending on detector) despite "undetectable" marketing
- Genuinely important to understand detection risk isn’t zero, particularly for high-stakes academic or professional use
- Samurai engine requires an additional $5/month fee unless already on Pro or higher
StealthGPT Pricing
| Plan | Price | Main Features |
|---|---|---|
| Essential | $34.50/month | Core AI humanization and generation |
| Business | $100.50/month | Expanded usage and features |
| Enterprise | $499.50/month | Highest tier of usage and features |
| Samurai engine (add-on) | +$5/month | Premium humanization engine, included on Pro+ |
Pricing was last verified September 2026. Check the official website for the latest pricing.
AI Listing Jungle Ranking
- Global Rank:
- #898
- Overall Score:
- 0.0/100
- Monthly Users:
- –
- Rank Change:
- ▼ 2
This ranking reflects AI Listing Jungle's own independent scoring methodology and is not an endorsement by StealthGPT or its company. How Our Rankings Work
Frequently Asked Questions
Is StealthGPT content really undetectable?
Not entirely — independent June 2026 testing found a mean 24.5% AI-flag rate across six detectors.
How much does StealthGPT cost?
From $34.50/month (Essential) up to $499.50/month (Enterprise).
What is the Samurai engine?
A premium humanization engine marketed for bypassing Turnitin, costing an additional $5/month.
Does StealthGPT include an AI detector?
Yes, a built-in AI detector is part of the broader feature ecosystem.
Our Take
StealthGPT's "completely undetectable" marketing claim deserves real scrutiny — independent June 2026 testing found a genuine 24.5% mean AI-flag rate across six major detectors, not zero detection.
Anyone relying on this for high-stakes situations should understand this real residual detection risk rather than assuming guaranteed undetectability based on marketing alone.
StealthGPT Alternatives
StealthGPT Comparisons
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