Head to head · October 2026 cycle
StealthGPT vs WriteHuman
WriteHuman finished 0.4 points ahead of StealthGPT in the October 2026 cycle, 74.89 to 74.50, ranking #1 against #2 in a field of 14. WriteHuman scored higher on 4 of 6 detectors and 4 of 6 writing categories. StealthGPT came out ahead on Pangram (69.9 vs 50.3), readability (72.6 vs 55.9) and Copyleaks (100.0 vs 93.3). The bypass-rate gap, 88.1 to 88.8, sits inside both tools' 95% confidence intervals, so treat bypass as a draw.
- Detectors
- 2 – 4
- Categories
- 2 – 4
- Components
- 2 – 3
30 prompts · Last tested · Methodology v1.3.0
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. WriteHuman took 4 of 6.
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 →
Head-to-head history
Overall score in every cycle both tools were tested. WriteHuman has finished ahead in 5 of 5 shared cycles.
| Cycle | StealthGPT | WriteHuman | Margin |
|---|---|---|---|
| October 2026 | 74.50 #2 | 74.89 #1 | → 0.4 |
| September 2026 | 65.10 #9 | 78.29 #1 | → 13.2 |
| August 2026 | 45.55 #12 | 76.69 #1 | → 31.1 |
| July 2026 | 61.52 #8 | 73.07 #1 | → 11.5 |
| June 2026 | 71.47 #7 | 83.59 #2 | → 12.1 |
Where each one wins
Every measure above that one tool won outright, largest margin first within each group.
StealthGPT
6 wins- Readability Score 72.6 vs 55.9
- Meaning preservation Score 61.8 vs 60.0
- Pangram Detector 69.9 vs 50.3
- Copyleaks Detector 100.0 vs 93.3
- News Article Category 84.0 vs 77.9
- Academic Essay Category 73.6 vs 70.7
WriteHuman
11 wins- Penalties Score None vs −3.0
- Consistency Score 94.7 vs 90.9
- Bypass rate Score 88.8 vs 88.1
- ZeroGPT Detector 89.5 vs 77.3
- Winston AI Detector 100.0 vs 90.4
- GPTZero Detector 99.5 vs 94.8
- Originality.ai Detector 100.0 vs 96.3
- Discussion Board Category 71.9 vs 57.2
- Marketing Copy Category 71.8 vs 69.7
- Blog Post Category 72.4 vs 70.4
- and 1 more
Same prompt, both outputs
Both tools were given this AI-written passage in the October 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 →News Article · News Article · written by gemini-3-8-flash · 420 words
**The Illusion of Protection: Why Digital Privacy Laws Are Failing the Modern Web**
**BRUSSELS** — When the European Union enacted the General Data Protection Regulation (GDPR) in 2018, it was hailed as a watershed moment—a digital bill of rights that would fundamentally curb Big Tech’s voracious appetite for personal data. Six years later, as regulatory frameworks proliferate globally from California to New Delhi, digital rights experts are sounding an alarm: existing privacy laws are fundamentally ill-equipped to handle the realities of modern technology.
While statutes like the GDPR and the California Consumer Privacy Act (CCPA) successfully banned explicit, unauthorized data hoarding, technology companies have pivoted to more sophisticated methods of surveillance that slip through legal cracks.
The most glaring limitation of current law is its reliance on the "notice and consent" model. Critics argue that forcing users to click through endless cookie banners has created "consent fatigue" rather than genuine empowerment. A recent study by the University of Oxford found that over 80% of internet users blindly accept tracking terms simply to access web pages, rendering the legal standard of "informed consent" functionally meaningless.
Furthermore, privacy laws remain stubbornly tethered to the concept of "Personally Identifiable Information" (PII)—data like names, Social Security numbers, or email addresses. Yet, data brokers no longer need PII to identify individuals. Through modern algorithmic fingerprinting, brokers aggregate seemingly innocuous data points—device battery levels, typing cadence, and daily geolocation pings—to build behavioral dossiers. These profiles can deanonymize users with up to 99% accuracy, bypassing statutory definitions of personal data entirely.
The rapid rise of generative artificial intelligence has widened this regulatory chasm. AI models ingest billions of public web pages to train their systems, operating in a legal gray area where data scraping is rarely classified as a targeted privacy violation, despite permanently absorbing users' digital footprints into black-box algorithms.
Enforcement mechanisms also face severe bottlenecks. National Data Protection Authorities (DPAs) are chronically underfunded and outmatched by the legal war chests of trillion-dollar tech conglomerates. Major fines, while eye-catching in headlines, are routinely absorbed as a mere "cost of doing business."
"We are using 20th-century legal concepts to regulate 21st-century predictive behavioral engineering," says Elena Vance, a digital ethics researcher at the Open Tech Institute. "Passing a law that restricts direct data collection does nothing to stop inferential profiling."
As lawmakers worldwide attempt to draft updated frameworks, the consensus among technologists is increasingly stark: without shifting the burden from individual user consent to strict prohibitions on data-driven business models, digital privacy will remain a legal fiction.
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414 words (input 420)
BRUSSELS, When the European Union enacted its landmark digital privacy law six years ago, many hoped it would rein in Big Tech’s unchecked collection of personal information.
Others followed suit. Since the EU’s General Data Protection Regulation went into effect, privacy frameworks have proliferated in regions ranging from California to New Delhi.
Today, however, privacy laws appear toothless.
“We are using 20th-century legal concepts to regulate 21st-century predictive behavioral engineering,” said Open Tech Institute digital ethics researcher Elena Vance.
First, existing privacy regulations rely on a notice and consent model. If websites want to harvest users’ data, they must explain what information they’ll gather and get users’ approval. This is why internet-goers must click Accept when they visit a website and get pelted with a cookie banner. But such prompts have done little to give internet-goers power over their own data: A University of Oxford study found that more than 80% of users accept them without a second thought just to access content. Many suffer from consent fatigue.
Second, privacy laws don’t keep up with technology. For instance, many regulations center on companies hoarding users’ Personally Identifiable Information without permission, which might include things like your name, email address or Social Security number. But tech companies don’t need your PII to build richly detailed profiles of you and sell them to the highest bidder. Through a process called algorithmic fingerprinting, they can aggregate data points that aren’t individually identifying — think geolocation data, your phone’s battery level, how quickly you type — and use them to deanonymize you with as much as 99% accuracy. Passing a law that restricts direct data collection does nothing to stop inferential profiling.
Likewise, although the explosion of generative AI tools constitutes an obvious privacy threat because they’re built on top of billions of webpages they’ve been trained on, few would characterize AI training data scraping as a violation of any particular user’s privacy. Once your digital footprint gets baked into an algorithm, there’s no pulling it back out.
Finally, privacy laws are difficult to enforce. National Data Protection Authorities are significantly underfunded and struggle to keep up with trillion-dollar tech companies that can afford deep-pocketed legal teams to fight them. Meanwhile, even hefty fines barely register as operating costs for Big Tech.
For these reasons, the consensus among technologists is it’s past time to pivot from consent-based privacy laws that place the burden of action on individual users to laws that prohibit certain kinds of data-guzzling business practices.
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- GPTZero1.00passed
- Pangram1.00passed
- Winston AI1.00passed
- ZeroGPT1.00passed
- Copyleaks1.00passed
- Originality.ai1.00passed
Passed 6 of 6 detectors.
Every StealthGPT run in October 2026 →402 words (input 420)
"The Illusion of Protection: Digital Privacy Laws and the Modern Web"
BRUSSELS - The GDPR created a standard for protecting users’ personal data, giving people more control over their privacy. However, laws similar to the GDPR have failed to put restrictions on certain legal loopholes and instead focus on broad strokes that fail to accurately address issues related to technology and personal privacy.
Two years after the GDPR was introduced, politicians in other countries including California created similar privacy laws to address data collection. Although the CCPA also uses the veneer of protecting people’s privacy, the law fails to address issues pertaining to pervasive surveillance by technology companies, especially among kids.
Current laws resort to the “notice and consent” standard. The ineffectiveness of requiring users to consent to thousands of privacy policies before using a website has resulted in “consent fatigue.” A study conducted by the University of Oxford showed that the average person is indifferent to legal terms and will accept any legal language in order to use a website. Consequently, the legal standard of “informed consent” has lost its meaning.
Privacy laws continue to rely on 20th-century notions of personal information. Laws are slow to adapt to new methods of data collection, and currently focus on traditional identifiers such as name and date of birth. Modern data brokers and collectors use a range of diverse and mundane data points to build profiles. These profiles, known as behavioral dossiers, can be used to reveal the true identity of an individual, with a very high degree of accuracy.
New types of artificial intelligence collect and absorb data in ways that are unregulated and unconstrained. The approaches are legal, and have changed the framework and scope of privacy and regulation. These new AI systems fit into a legal and regulatory gray area.
Privacy and data protection authorities are vastly under-resourced. Currently, large fines, while headline grabbing, are viewed by large tech companies as a routine cost of doing business.
“We are using 20th century legal means to regulate 21st century behavior,” says Vance. “Being ‘for’ a privacy law doesn’t mean being ‘against’ behavioral advertising.”
While legislatures around the world are busy revising privacy and data protection laws, the sentiment of the tech and legal communities is aligning. New and revised privacy laws will have little to no effect on emerging privacy threats unless the focus shifts from individual control to ab initio bans.
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- GPTZero1.00passed
- Pangram1.00passed
- Winston AI1.00passed
- ZeroGPT1.00passed
- Copyleaks1.00passed
- Originality.ai1.00passed
Passed 6 of 6 detectors.
Every WriteHuman run in October 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 StealthGPT better than WriteHuman?
WriteHuman finished 0.4 points ahead of StealthGPT in the October 2026 cycle, 74.89 to 74.50, ranking #1 against #2 in a field of 14. WriteHuman scored higher on 4 of 6 detectors and 4 of 6 writing categories. Both tools ran the same 30 prompts, scored by the same 6 detectors, under methodology v1.3.0; every input, output and verdict is published.
Which bypasses AI detectors better, StealthGPT or WriteHuman?
WriteHuman posted the higher bypass rate, 88.8 vs 88.1, and scored higher on 4 of 6 detectors. StealthGPT led on Copyleaks and Pangram; WriteHuman led on GPTZero, Originality.ai, Winston AI and ZeroGPT. The overall bypass gap is inside both 95% confidence intervals, so it is not a reliable difference.
Do StealthGPT and WriteHuman keep the original meaning?
StealthGPT preserved meaning better, 61.8 vs 60.0 on our 0–100 similarity scale, though the confidence intervals overlap. On readability, StealthGPT rated higher, 72.6 vs 55.9. Penalties this cycle: StealthGPT −3.0, WriteHuman None.