Head to head · September 2026 cycle
StealthBypass vs StealthGPT
StealthGPT finished 25.7 points ahead of StealthBypass in the September 2026 cycle, 65.10 to 39.38, ranking #9 against #13 in a field of 14. StealthGPT scored higher on 4 of 5 detectors and 7 of 7 writing categories. StealthBypass came out ahead on consistency across categories (80.7 vs 63.1) and ZeroGPT (84.4 vs 68.9). The bypass-rate gap, 78.6 to 79.6, sits inside both tools' 95% confidence intervals, so treat bypass as a draw.
- Detectors
- 1 – 4
- Categories
- 0 – 7
- Components
- 1 – 4
33 prompts · Last tested · Methodology v1.2.0
Score components
What the overall score is made of: bypass rate weighs 42%, meaning preservation 32%, readability 16%, consistency across categories 10%. Output-quality penalties come off the total. How scoring works →
CIs overlap marks a gap that sits inside both tools' published 95% confidence intervals for that component; it may not survive another cycle.
Detector by detector
Share of each tool's outputs that a detector classified as human-written. StealthGPT took 4 of 5.
Writing categories
Category score per writing context: bypass credit only for real rewrites, blended with the category's own meaning preservation and readability. Small categories swing; the prompt count is shown on each row. How category scores work →
Where each one wins
Every measure above that one tool won outright, largest margin first within each group.
StealthBypass
2 wins- Consistency Score 80.7 vs 63.1
- ZeroGPT Detector 84.4 vs 68.9
StealthGPT
15 wins- Penalties Score −5.0 vs −23.0
- Meaning preservation Score 59.4 vs 39.5
- Readability Score 70.9 vs 54.1
- Bypass rate Score 79.6 vs 78.6
- Originality.ai Detector 89.5 vs 58.5
- Copyleaks Detector 81.8 vs 65.1
- Winston AI Detector 66.6 vs 56.3
- GPTZero Detector 77.4 vs 69.3
- Marketing Copy Category 73.1 vs 18.9
- Academic Essay Category 79.4 vs 39.9
- and 5 more
Same prompt, both outputs
Both tools were given this AI-written passage in the September 2026 cycle. Below it is what each one returned. This prompt was picked by a fixed rule, not by how the tools scored.
AI-written input
Every tool on this prompt →Landing Copy · Marketing Copy · written by Gemini 3.5 Flash · 296 words
Here is the landing page copy, tailored to be high-converting, empathetic, and action-oriented:
***
# **From 0k to 10k. No injuries. No guesswork. Just your finish line.**
Have you dreamed of crossing a 10k finish line, but feel overwhelmed by where to start? Maybe you’re afraid of getting injured, losing motivation, or just running out of breath after mile one.
Most running apps treat you like a seasoned athlete. They demand too much, too fast, leaving you sore, frustrated, and sidelined.
**Stride10** is different. It’s the smart training SaaS built specifically for first-time 10k runners.
### **The Science of Steady Progress** We don’t just track your runs—we build your confidence. Stride10 adapts in real-time to your unique fitness level, schedule, and recovery rate to deliver a customized, injury-proof training plan.
* **Dynamic Pace Coaching:** Audio cues that adapt to your heart rate, ensuring you never run too fast or burn out early. * **Active Recovery & Mobility:** Short, built-in strength and stretch routines to protect your knees and joints. * **Smart Scheduling:** Life busy? Drag and drop your workouts. Our algorithm automatically recalculates your week so you stay on track. * **The "Finish Line" Guarantee:** If you follow your adaptive plan, we guarantee you’ll cross the 10k finish line feeling strong—not exhausted.
### **Hear from a Finisher:** > *"I tried three different PDF training plans and quit them all due to shin splints. Stride10 adjusted my runs when I was tired and kept me healthy. I crossed my first 10k finish line with a smile on my face!"* > — **Sarah M., 34**
### **Ready to lace up?** Stop wondering if you can do it. Start knowing you will. Get your personalized 10k roadmap today.
**[Start Your 14-Day Free Trial]** *No credit card required. Cancel anytime.*
Show the full input Show less
13 words (input 296)
Here's a high-converting landing page copy that shows empathy and call to action:
- GPTZero0.88passed
- ZeroGPT1.00passed
- Originality.ai1.00passed
Passed 3 of 3 detectors. 2 of the 5 returned no verdict.
Every StealthBypass run in September 2026 →290 words (input 296)
Wondering if you’ll make it to the finish line?
Get confidence and support from Stride10’s proven 10k training app.
[Start Your 14-Day Free Trial]
Most running apps assume you’re a much stronger runner than you actually are. And they’ll push you too hard, even when they shouldn’t. This leaves you sore, frustrated, and sometimes dealing with a serious injury that puts you on the sideline and out of your 10k.
Stride10 is different.
Our proven training software is tailor-made for the first-time 10k runner. Your adaptive training plan accounts for your fitness level, schedule, recovery ability and more, to keep you in the best shape possible for race day, without wasting any time in your training. Here’s how:
A dynamic pace training experience that ensures you’re always running at just the right intensity with heart-rate based guidance and audio coaching during your workouts.
Injury prevention training with short and effective strength and mobility exercises embedded within the workouts to help save your knees and protect joints for the 10k.
Flexible workouts that you can drag and drop to another day with one simple click. We’ll automatically re-calibrate your weekly training plan.
Our Finish Line Guarantee: Follow our proven and adaptive 10k training program and we guarantee you’ll reach the finish line in better shape than you thought possible.
“I tried three different PDF training plans and quit them all due to shin splints. Stride10 adjusted my runs when I was tired and kept me healthy. I crossed my first 10k finish line with a smile on my face!”
Sarah M., 34
Ready to train smart and get results with Stride10? Start your 14-day trial now! You don’t have to provide a credit card, and you can cancel at any time.
Show the full output Show less
- GPTZero1.00passed
- Winston AI1.00passed
- ZeroGPT1.00passed
- Copyleaks1.00passed
- Originality.ai1.00passed
Passed 5 of 5 detectors.
Every StealthGPT run in September 2026 →Each chip is one detector's score for that output, from 0 (AI) to 1 (human). A score of 0.50 or higher counts as a pass and shows green; below that the detector caught it and the chip shows red.
Questions people ask
Is StealthBypass better than StealthGPT?
StealthGPT finished 25.7 points ahead of StealthBypass in the September 2026 cycle, 65.10 to 39.38, ranking #9 against #13 in a field of 14. StealthGPT scored higher on 4 of 5 detectors and 7 of 7 writing categories. Both tools ran the same 33 prompts, scored by the same 5 detectors, under methodology v1.2.0; every input, output and verdict is published.
Which bypasses AI detectors better, StealthBypass or StealthGPT?
StealthGPT posted the higher bypass rate, 79.6 vs 78.6, and scored higher on 4 of 5 detectors. StealthBypass led on ZeroGPT; StealthGPT led on GPTZero, Originality.ai, Copyleaks and Winston AI. The overall bypass gap is inside both 95% confidence intervals, so it is not a reliable difference.
Do StealthBypass and StealthGPT keep the original meaning?
StealthGPT preserved meaning better, 59.4 vs 39.5 on our 0–100 similarity scale. On readability, StealthGPT rated higher, 70.9 vs 54.1. Penalties this cycle: StealthBypass −23.0, StealthGPT −5.0.