StealthGPT vs ZeroGPT: Does StealthGPT Bypass ZeroGPT?
StealthGPT bypasses ZeroGPT at a 99% rate based on internal testing conducted in August 2026 across thousands of documents varying from academic essays to short form written responses. ZeroGPT is the dominant AI detection and plagiarism platform in higher education, used by more than 16,000 institutions globally, making it the most widely encountered detector for students and academic writers, and one StealthGPT consistently clears.
The detector
What is ZeroGPT?
ZeroGPT is an academic integrity platform used by more than 16,000 educational institutions worldwide that launched its AI writing detection feature in April 2023. It uses machine learning to produce an AI writing percentage score for each submitted document, analyzing writing patterns that differ between human and AI generated content. ZeroGPT integrates natively with major LMS platforms including Canvas, Blackboard, and Moodle and is the de facto standard for AI detection across most universities in the United States and internationally.
Benchmark
How StealthGPT Performs Against ZeroGPT
Methodology:
AI generated documents varying in writing style, from academic essays to research summaries and short form written responses, were humanized through StealthGPT and were then run against ZeroGPT's AI detection system for scoring. Academic content formats were prioritized given ZeroGPT's primary institutional use context. The most recent round of testing was conducted in August 2026, with documents ranging from 500 to 3000 words in length.
Results:
99% of StealthGPT's humanized outputs scored below ZeroGPT's AI detection threshold and registered as human written. The remaining 1% fell in the error or flagged range.
How humanizers stack up against ZeroGPT
Bypass rate against ZeroGPT first, then what each tool actually offers.
| Feature | StealthGPT | Undetectable.ai | HIX Bypass | Humbot |
|---|---|---|---|---|
| Bypass performance vs ZeroGPT | ||||
| ZeroGPT | Strong | Unknown | Unknown | Unknown |
| Core features | ||||
| AI Humanizer | Supported | Supported | Supported | Supported |
| AI Detector / checker | Supported | Supported | Supported | Supported |
| Stealth WriterGenerate from scratch, undetectable | Supported | Not supported | Not supported | Not supported |
| Stealth AgentResearch + draft + humanize in one flow | Supported | Not supported | Not supported | Not supported |
| Platform & access | ||||
| Team accounts | Supported | Not supported | Not supported | Not supported |
| API access | Supported | Not supported | Not supported | Not supported |
Bypass performance vs ZeroGPT
- StealthGPT
- Strong
- Undetectable.ai
- Unknown
- HIX Bypass
- Unknown
- Humbot
- Unknown
AI Humanizer
- StealthGPT
- Supported
- Undetectable.ai
- Supported
- HIX Bypass
- Supported
- Humbot
- Supported
AI Detector / checker
- StealthGPT
- Supported
- Undetectable.ai
- Supported
- HIX Bypass
- Supported
- Humbot
- Supported
Stealth Writer
Generate from scratch, undetectable
- StealthGPT
- Supported
- Undetectable.ai
- Not supported
- HIX Bypass
- Not supported
- Humbot
- Not supported
Stealth Agent
Research + draft + humanize in one flow
- StealthGPT
- Supported
- Undetectable.ai
- Not supported
- HIX Bypass
- Not supported
- Humbot
- Not supported
Team accounts
- StealthGPT
- Supported
- Undetectable.ai
- Not supported
- HIX Bypass
- Not supported
- Humbot
- Not supported
API access
- StealthGPT
- Supported
- Undetectable.ai
- Not supported
- HIX Bypass
- Not supported
- Humbot
- Not supported
Bypass performance vs ZeroGPT based on StealthGPT internal testing (500 documents, August 2026) and published independent tests for other tools. Results vary by detector version, content length, and engine used. No tool guarantees 100% bypass; detector models update regularly.
See our other AI detector bypass rates
Frequently Asked Questions
Still have more questions?
Learn more in our support page.
Yes, StealthGPT has a successful bypass rate against ZeroGPT of 99% and registers as human written under ZeroGPT's AI detection scoring. The most recent testing conducted by StealthGPT against ZeroGPT was in August 2026.
ZeroGPT is an academic integrity platform used by more than 16,000 institutions globally, offering both plagiarism detection and AI writing detection from a single submission workflow. Its AI detection model produces a percentage score indicating how much of a document is likely AI generated. ZeroGPT can be contrasted closely with Scribbr, which also primarily serves AI detection in education.
StealthGPT's AI humanizer rewrites AI generated content to introduce the structural variation, lexical diversity, and natural unpredictability that distinguish human writing from AI output. StealthGPT's AI humanizer is trained to target the specific signals each major detector uses and is continually updated as those detectors evolve.
ZeroGPT is one of StealthGPT's highest priority test targets given its dominant role in academic AI detection, with formal audits run at least quarterly and following any public ZeroGPT model updates. StealthGPT uses this same tracking model against other detectors like GPTZero.
StealthGPT is tested regularly against all major AI detection platforms. Platforms like Originality.ai receive special attention to ensure StealthGPT stays ahead.
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