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October 2026 results: WriteHuman holds #1, StealthGPT jumps to #2. Read the analysis →
HumanizerBench

← October 2026 prompts

Product Desc · gemini-3-8-flash

Marketing Copy · written by gemini-3-8-flash · 183 words · prompt product_desc

3
passed at least 5 detectors
12
failed at least one detector
14
tools tested on this prompt
Pangram
hardest detector, caught 12 of 14

Input passage

Generated by gemini-3-8-flash; this exact text was pasted into every humanizer below.

Elevate your craft with the definitive standard in accuracy: our Precision-Milled Stainless-Steel Ruler. Engineered for professionals who refuse to compromise, this essential tool bridges the gap between workshop durability and micron-level exactness. Forged from premium, tempered stainless steel, this ruler resists corrosion, warping, and the relentless wear of daily use. Its edges are CNC-milled to exacting tolerances, providing a razor-sharp, dead-straight guide perfect for drafting, scribing, and precision cutting. Unlike inferior stamped alternatives with markings that rub away, our ultra-fine imperial and metric graduations are deeply laser-etched for permanent clarity. Paired with a glare-resistant satin-chrome finish, it guarantees effortless readability under bright studio lights or direct sunlight. Designed with a true-zero edge, you can take flush, butt-joint measurements against vertical surfaces without second-guessing your starting point. Its balanced, substantial weight provides a grounded feel on wood, paper, fabric, or metal, preventing accidental slippage mid-stroke. Whether you are an architect detailing blueprints, a woodworker laying out intricate joinery, or an engineer verifying tight tolerances, this ruler delivers uncompromising reliability. Upgrade your workspace with a tool built to last a lifetime. Measure with absolute confidence.

How to read these scores

Each detector returns a human-likelihood on a common 0 to 1 scale, where 1 means it judged the text human-written and 0 means it flagged it as AI. On these pages a verdict counts as passed when that score is at least 0.50, the midpoint of the detector's own scale. That threshold exists only to draw the chips: the bypass rate on the leaderboard is the mean of each test's scores from the 6 detectors, a continuous number, so a tool's pass count and its bypass rate will not be the same figure.

Meaning is the input↔output embedding cosine and readability is a language-model writing-quality rating, both published per test in tests.json. Words is the output's length as a multiple of the input's; the scoring code penalizes ratios above 1.40 or below 0.60. Full definitions live in the methodology.

Humanized outputs

Ordered by how many detectors each rewrite passed; ties fall back to this cycle's rank. Each block shows what the tool returned and how the 6 detectors scored it.

StealthGPT

Rank #2 this cycle · run took 0:42

6/6 detectors passed
  • GPTZero1.00passed
  • Pangram1.00passed
  • Winston AI1.00passed
  • ZeroGPT0.86passed
  • Copyleaks1.00passed
  • Originality.ai1.00passed
Mean
0.98
Meaning
84.2
Readability
58.0
Words
1.01× 183 → 185
Show output (185 words)

Precision is our name and fame. Crafted from tempered stainless-steel, it’s immune to corrosion, wear, and tear. Graduations in imperial and metric are laser-etched for clarity. Take this ruler on the journey with you and it’ll be as good as new when you return. The ruler’s edges are CNC-milled to strict tolerances to provide a dead-straight edge for scribing, drawing, or cutting. Unlike other rulers that have graduations stamped into them, ours are laser-etched deeply enough that they’ll never rub-off. Built for professionals who can’t afford to make allowances for inaccuracies, this ruler will prove its worth on a daily basis. Use it to draw blueprints if you’re an architect, mark-up joinery if you’re a woodworker, or check close tolerances if you’re an engineer. This ruler’s satin-chrome finish will stand up to glare under the harshest studio lights or direct sunlight. It also sports a true-zero edge so you can lay it up against a surface and take readings from a dead-level. Balanced well so it won’t slide around, it’ll perform admirably on wood, paper, metal, fabric, etc. Get one! You’ll be glad you did!

Phrasly

Rank #12 this cycle · run took 0:23

6/6 detectors passed
  • GPTZero0.99passed
  • Pangram1.00passed
  • Winston AI1.00passed
  • ZeroGPT0.94passed
  • Copyleaks1.00passed
  • Originality.ai1.00passed
Mean
0.99
Meaning
84.6
Readability
46.0
Words
0.83× 183 → 151
Show output (151 words)

Precision-Milled Stainless-Steel Ruler will help you achieve higher levels of precision in your work. Perfect for anyone who needs a durable and precise ruler. A must have tool in any professional's shop. Made from quality tempered Stainless Steel. You will never have to worry about rust or bend. Our Stainless-Steel ruler is mill ground to give you perfect smooth straight edges to scribe and cut with. Millimeter graduations are laser etched into the stainless steel so you don't have to worry about fading or wearing off like stamped rulers. The Stainless Steel ruler will also have a nice shine to it which allows for great visibility when under shop light or the sun. Zero true edge allows you to measure against a edge for accurate measurements. Great for architects, engineers and woodworkers that need an accurate length measurement. Add one to your shop today and never question your length measurement again.

WriteHuman

Rank #1 this cycle · run took 0:12

5/6 detectors passed
  • GPTZero1.00passed
  • Pangram0.00caught
  • Winston AI1.00passed
  • ZeroGPT1.00passed
  • Copyleaks1.00passed
  • Originality.ai1.00passed
Mean
0.83
Meaning
91.0
Readability
58.0
Words
1.34× 183 → 246
Show output (246 words)

Our Precision-Milled Stainless Steel Ruler is here, and it will change the game for anyone passionate about a craft. Traditionally, tools for workshops are extremely rugged, and measuring tools are designed to show case absolute precision. For the first time, you can have both in one tool. Because we understand the need for a precise shop tool, we designed this ruler with professional-grade stainless steel. It will not rust or warp like traditional metals, and it will not wear down like ruling on a traditional tool steel ruler. Even the edges are milled to an extremely sharp and precise edge. Our ruler is so much more precise than a traditional tool steel ruler, that we were able to laser a very useful and extremely fine Imperial and Metric graduations on the face of the ruler. The deep graduations, combined with a satin-chrome finish and a 5" length, make readability a non-issue, especially with the studio or other artificial lights. Plus, because our ruler is designed with a true-zero edge, you can start measuring against a wall with a flush joint. And, because it's designed to be heavy, it will help give you the control you need when measuring. Whether you are an engineer or architect checking tolerances, or a woodworker laying out intricate joints, you can rely on our ruler to be extremely precise. You will get the same confidence and precision for every measurement you take. That's why we engineered a ruler designed to last.

Undetectable.ai

Rank #3 this cycle · run took 0:15

4/6 detectors passed
  • GPTZero0.00caught
  • Pangram0.00caught
  • Winston AI0.85passed
  • ZeroGPT0.92passed
  • Copyleaks1.00passed
  • Originality.ai0.87passed
Mean
0.61
Meaning
94.7
Readability
74.0
Words
1.25× 183 → 228
Show output (228 words)

Take your craft to new heights with the definitive standard for accuracy. Our Precision-Milled Stainless-Steel Ruler is designed for the serious professional who demands the very best. Nobody does accurate better than this ruler. Our ruler is made from premium tempered stainless steel to ensure it does not corrode, warp or break. The edges have been expertly CNC-milled to be as sharp as possible in order to draw straight lines on any surface and to cut accurately. Unlike inferior rulers that have been stamped out and have the markings wear off, our ruler has fine imperial and metric measurements that have been deeply laser etched. The ruler has a glare-resistant satin-chrome finish that makes it easy to read measurements whether you are in a bright studio or outside in the sunlight. The zero edge ruler is designed to enable measurements such as flush and butt joints. The weighty balance of the Precision-Milled Stainless-Steel Ruler ensures that the straightedge stays precisely where you want it – resting confidently on wood, paper, fabric or metal – without wobbling or sliding. Whether you are an architect requiring precise measurement details for your blueprints, a woodworker creating intricate joints, or engineer requiring exact tolerances, this ruler delivers the highest level of reliability. Use the Precision-Milled Stainless-Steel Ruler as an upgrade to your workspace for years to come – Measure with Absolute Confidence!

Clever AI Humanizer

Rank #4 this cycle · run took 0:19

4/6 detectors passed
  • GPTZero0.00caught
  • Pangram0.00caught
  • Winston AI1.00passed
  • ZeroGPT1.00passed
  • Copyleaks1.00passed
  • Originality.ai1.00passed
Mean
0.67
Meaning
89.4
Readability
58.0
Words
1.26× 183 → 230
Show output (230 words)

Get your tools upgraded with our Precision-Milled Stainless-Steel Ruler. This precision measuring tool is made to keep up with the most exacting professionals. From the shop to the drafting table, you'll find this hardened steel ruler to be tough enough to take the punishment, but precise enough to make the demands of any serious craftsman A solid tempered steel construction resists corrosion and everyday wear and tear. The edges are CNC milled to exacting standards for perfect cutting edges. Gone are the days of markings getting rubbed off on lower quality rulers. On this heavy duty ruler, the ultra fine imperial and metric markings are laser etched to the steel for a lifetime of accuracy. Add in the non-glare satin chrome finish and you have a ruler that won't disappoint when it comes to readability. Take accurate measurements with the true zero edge along the side. It allows for perfectly flush measurements against vertical surfaces. The ruler's substantial weight adds to its accuracy by ensuring it won't slide around on the surface you're measuring. This is a ruler that can handle the most exacting measurements for those who need them. Whether your working on architectural drawings or making your own, this stainless steel ruler will provide the level of precision you need. And that's a good thing because the quality of your work will only improve with the right tools.

Humanize AI Pro

Rank #5 this cycle · run took 0:20

4/6 detectors passed
  • GPTZero0.00caught
  • Pangram0.00caught
  • Winston AI0.67passed
  • ZeroGPT0.86passed
  • Copyleaks1.00passed
  • Originality.ai1.00passed
Mean
0.59
Meaning
92.3
Readability
62.0
Words
1.06× 183 → 194
Show output (194 words)

Take your skills to the next level with our Precision-Milled Stainless-Steel Ruler, the ultimate tool that brings together strength and accuracy for professionals who demand nothing but the best. Manufactured from high-quality tempered stainless steel material, this ruler ensures resistance to corrosion, deformity, and damage from regular use. The edges are precisely milled by CNC machining and provide the ultimate razor-sharp, perfectly straight guidance tool for your drawing, scribing, and precise cutting tasks. In addition to that, while cheaper stamped rulers with rubbed-out markings cannot give you any satisfaction, laser-etched fine imperial and metric graduations of our ruler ensure permanent visibility. In combination with its glare-free satin chrome finish, the ruler is perfect for taking readings even under the bright studio light and direct sunlight. In addition to this, the true-zero edge allows measuring with butt joint measurements against vertical surfaces without doubt about the beginning point. Balanced weight ensures good feel on wood, paper, fabric, and metal without any slipping during measurements. If you are an architect, a carpenter, or an engineer, this ruler will be a perfect tool for precise measurements with no compromises on quality. Get yourself a reliable lifetime companion.

AI Humanize io

Rank #6 this cycle · run took 0:24

4/6 detectors passed
  • GPTZero0.99passed
  • Pangram0.00caught
  • Winston AI0.46caught
  • ZeroGPT0.87passed
  • Copyleaks1.00passed
  • Originality.ai1.00passed
Mean
0.72
Meaning
88.9
Readability
52.0
Words
0.97× 183 → 178
Show output (178 words)

Enhance your creations with the ultimate benchmark in precision: our Precision-Milled Stainless Steel Ruler. Designed for specialists unwilling to settle for mediocrity, this indispensable tool offers the best of both worlds in terms of strength and micro-measurement. Made from high-quality stainless steel that has undergone tempering, the ruler remains resistant to rust, distortion and the impacts of continuous usage. Its edges are produced with the help of CNC milling techniques that guarantee accuracy of measurements for cutting, marking and sharpening. Unlike cheap stamped solutions that wear off over time, the rigid and clear engraving of both metric and imperial measurements is done using the laser engraving technology. The creating of this erasable graduation is easy with the help of the shiny and satin chromium coating. The hard nature of the ruler allows getting the readings directly from its zero edge which guarantees the accuracy of all vertical measurements and is very quick in taking readings on paper, wood and metal. The ruler is a must-have for all the builders who require proper measurements when designing houses and furniture.

Super Humanizer

Rank #7 this cycle · run took 0:12

4/6 detectors passed
  • GPTZero0.00caught
  • Pangram0.00caught
  • Winston AI0.99passed
  • ZeroGPT0.85passed
  • Copyleaks1.00passed
  • Originality.ai1.00passed
Mean
0.64
Meaning
82.2
Readability
58.0
Words
1.14× 183 → 208
Show output (208 words)

Price: $75.00 - $600.00 Elevate your craft to the high standards of ultimate accuracy: Precision-Milled Stainless-Steel Ruler Designed for those who work hard and leave nothing to chance, this is the only ruler you'll want in your shop. The Street Rod Ruler is forged from high-quality, temper-hardened stainless steel, with superior corrosion and wear properties. Edges are precision CNC-machined for microscopic accuracy and razor-sharp dead-straight lines - ideal for drawing, marking and cutting. Unlike cheaper stamped and printed strips whose markings wear off, the ultra-fine imperial and metric graduations are laser-etched in deep, lifelike contrast, along with a glossy satin-chrome finish that performs flawlessly under bright studio illumination or natural sunlight. With a true-zero edge, take flush, butt-joint measurements against vertical surfaces without questioning where you started. Feel a stake in the ground when you weigh down the middle of the tool on wood, paper, fabric, or metal to avoid the tool slipping in the middle of your stroke. If you're an architect designing up detailed blueprints, a woodworker designing complex joinery, or an engineer inspecting tight tolerances this ruler has you covered. Reliable every time. This is the ruler you reach for if you want something that will last a lifetime. Draw fine lines with perfect confidence.

Stealth Writer

Rank #8 this cycle · run took 0:12

4/6 detectors passed
  • GPTZero0.00caught
  • Pangram0.00caught
  • Winston AI1.00passed
  • ZeroGPT0.82passed
  • Copyleaks1.00passed
  • Originality.ai1.00passed
Mean
0.64
Meaning
91.7
Readability
58.0
Words
1.16× 183 → 212
Show output (212 words)

Take the ruler to new levels of accuracy with the pinnacle of stainless-steel precision, our Precision-Milled Stainless-Steel Ruler. Designed for those who can't afford to compromise, this must-have tool is the link between workshop friendly designs and micron precision. This ruler is constructed from top quality tempered stainless steel, which is resistance to corrosion and warping, as well as the daily use wear. This is a razor sharp, dead straight guide, CNC-milled to close tolerances, for drafting, scribing and precision cutting. Genuine deeply laser-etched imperial and metric graduations are permanent and do not rub off like inferior, stamped graduations. Complementary to a glare resistant satin chrome look, it ensures to be easily readable under bright studio lighting or bright sunlight. The true-zero ensures that you can make flush measurements or butt-joint against a vertical surface without second-guessing the starting point. Its medium heavy weight assures a solid, stable hand sensation on wood, paper, fabric or metal surface which helps prevent accidental slip mid-stroke. From architects who need to draw blueprints to woodworkers creating intricate joinery or engineers checking for tight tolerances, this ruler is a tool that you can bank on. Take your workstation to the next level with an equipment piece set to last a lifetime. Take measurements with complete precision.

Walter Writes

Rank #10 this cycle · run took 0:22

4/6 detectors passed
  • GPTZero0.00caught
  • Pangram0.00caught
  • Winston AI1.00passed
  • ZeroGPT0.89passed
  • Copyleaks1.00passed
  • Originality.ai1.00passed
Mean
0.65
Meaning
91.6
Readability
60.0
Words
1.68× 183 → 307

Output is more than 1.4× the input length, penalized as length inflation.

Show output (307 words)

This is the best way to upgrade your work, with the most accurate measuring tool available: our precision-milled stainless steel ruler. Designed for professional craftsmen, who will never settle for anything less than the very best; this tool fills the gap between the long lasting nature of workshop tools, and the extremely high level of precision required by many craftsman. Our rulers are made from top quality tempered stainless steel which gives them the strength needed to withstand the constant wear and tear that comes with daily use. The edges of our rulers have been cnc milled to precise specifications. These sharp, straight lines make it easy to draft, scribe, and measure accurately when using precision cutters. While other lower-quality, stamped rulers can wear down their markings through normal use, we have used an ultra-fine laser etching process to create both our imperial and metric gradations as deep into the surface of the ruler so they remain clear throughout its entire life. To further enhance the usability of these markings we have also applied a glare resistant satin chrome finish. This finish ensures easy-to-read measurements under even the brightest lighting conditions (studio lights or direct sunlight). In addition to being able to take flush, butt-joint measurements against vertical surfaces with our true-zero edge, we have also added a substantial amount of weight to each ruler. This additional weight allows our ruler to provide a solid platform on all types of surfaces including wood, paper, fabric or metal. This additional stability prevents our ruler from slipping during measurement, allowing you to maintain your concentration while taking your measurements. Regardless if you are an architect creating detailed blue prints, a woodworker detailing intricate joinery, or an engineer checking tolerances; our rulers offer uncompromised reliability. Make your workspace better with a tool that will last forever. Measure with absolute confidence

HIX Bypass

Rank #9 this cycle · run took 1:01

3/6 detectors passed
  • GPTZero0.00caught
  • Pangram0.00caught
  • Winston AI0.70passed
  • ZeroGPT0.62passed
  • Copyleaks1.00passed
  • Originality.ai0.00caught
Mean
0.39
Meaning
94.1
Readability
58.0
Words
1.09× 183 → 199
Show output (199 words)

Experience precision like never before with our Precision-Milled Stainless-Steel Ruler – the new standard for accuracy in your craft. Designed for uncompromising pros, it’s the tool that combines workshop toughness with ±0.001mm precision. This 12" ruler features an industrial heat tempered stainless steel that is rust resistant, don't warp and will last against everyday use. CNC-milled edges to razor-sharp, dead-straight tolerances make for the ideal guide for drafting, scribing, and accurate cuts. Our ultra-fine imperial and metric graduations are deeply laser-etched for clarity that lasts a lifetime rather than stamped inferior alternatives with markings that rub away. It is matched with a non-reflective satin-chrome finish, making for easy legibility regardless of bright studio lights or direct sunlight. The true-zero edge allows flush, butt-joint measurements against vertical surfaces without worrying about where your measurement begins. The heft of the pen is perfectly balanced to stay put on wood, paper, fabric, or metal without slipping mid-stroke. Be it an architect detailing minor features in blueprints, a woodworker laying out intricate joinery or an engineer verifying tight tolerances, this ruler provides uncompromising reliability. Step up your work game with a tool that is built to last a lifetime. Measure with absolute confidence.

SupWriter

Rank #11 this cycle · run took 0:11

3/6 detectors passed
  • GPTZero0.00caught
  • Pangram0.00caught
  • Winston AI0.78passed
  • ZeroGPT0.64passed
  • Copyleaks1.00passed
  • Originality.ai0.46caught
Mean
0.48
Meaning
92.8
Readability
58.0
Words
1.10× 183 → 202
Show output (202 words)

Upgrade your toolbelt with the ultimate benchmark in precision: our Precision-Milled Stainless Steel Ruler. This tool has been built for professionals who will not compromise. Between workshop toughness and micron precision. This ruler is made of high-quality tempered stainless steel, making it rust-proof and impervious to daily wear and tear. Created from high-grade solid aluminium, this item has extreme rigidity, preventing bending, warping or damage even when subjected to high forces. In contrast to lower-quality stamped measurements that wear off quickly, our ultra-fine imperial and metric graduations are deeply laser-etched to ensure the markings will last forever. The satin chrome finish adds glare resistance to provide easy reading in bright studio lights or direct sunlight. This product has a true zero edge design meaning you can make flush, butt-joint measurements against vertical surfaces without any guesswork about where to begin measuring. Its heavy and well-balanced weight gives a reassuring, firmly planted feel on wood, paper, cloth, or metal, so it won’t slide off-center while you write or sketch. Whether architecting detailed blueprints, laying out intricate joinery, or engineering verifying tight tolerances, this ruler delivers unparalleled performance at a great price. Enhance your office with this durable lifetime product. Measure with utmost certainty.

Humbot

Rank #13 this cycle · run took 0:59

3/6 detectors passed
  • GPTZero0.00caught
  • Pangram0.00caught
  • Winston AI0.92passed
  • ZeroGPT0.70passed
  • Copyleaks1.00passed
  • Originality.ai0.01caught
Mean
0.44
Meaning
88.5
Readability
68.0
Words
1.52× 183 → 279

Output is more than 1.4× the input length, penalized as length inflation.

Show output (279 words)

Elevate your skill level by using a highly accurate ruler that has been manufactured to the highest standards. This ruler is made from stainless steel and has been precision-milled. It is designed to be used in workshops as well as other demanding environments where accuracy is critical. This ruler is made of high quality, hardened stainless steel which protects against rusting, bending, and the daily abuse of everyday use. The edges of the ruler are precision machined using CNC technology, creating a sharp, perfectly straight line to use when drafting, marking, or making precise cuts. Unlike some cheaper options on the market today (i.e. stamped metal rulers), where the numbers can fade over time; our ultra-fine imperial and metric measurements will last forever due to being laser etched into the surface of the ruler. In addition to being laser etched, the ruler also has a anti-reflective satin-chrome finish that allows you to easily see the measurements regardless of whether you are working in a brightly lit studio or outdoors in direct sunlight. This is the only product on the market today that has a true-zero edge. You will never have to doubt where to begin when taking flush butt-joint measurements against vertical surfaces. This product also offers a balanced weight and substantial size, giving it a solid feel on all types of materials (wood, paper, fabric, and metal) which helps prevent slippage during use. Whether you are an architect working on plans and details, a woodworker creating complex joinery designs, or an engineer verifying exact measurements, the reliability of this ruler is guaranteed. Upgrade your work area with a durable instrument that will last for years. Measure with certainty.

Grammarly

Rank #14 this cycle · run took 0:12

1/6 detectors passed
  • GPTZero0.00caught
  • Pangram0.00caught
  • Winston AI0.00caught
  • ZeroGPT0.44caught
  • Copyleaks1.00passed
  • Originality.ai0.10caught
Mean
0.26
Meaning
94.3
Readability
78.0
Words
1.26× 183 → 230
Show output (230 words)

Take your skills to the next level using the best available standard for accuracy—the Precision-Milled Stainless-Steel Ruler. This essential tool, designed for professionals who won't settle for less, fills the gap between the durability needed in a workshop and the exactness measured in microns. This ruler is made from high-quality, tempered stainless steel so that it does not corrode, warp, or suffer the usual wear from everyday use. The edges have been precisely shaped by CNC milling, giving them a very sharp and perfectly straight edge that is ideal for drafting, scribing, and accurate cutting. Unlike cheaper versions which have markings that wear off, the fine imperial and metric scales on our product are laser-engraved deeply to ensure they remain clearly visible. Together with a glare-resistant satin-chrome finish, it ensures easy reading whether in bright studio lighting or direct sunlight. Because of its true-zero edge, you can take flush, butt-joint measurements against vertical surfaces without having to doubt your starting point; the tool's well-balanced and substantial weight gives it a steady feel when used on wood, paper, fabric, or metal and stops it from slipping accidentally during use. If you are an architect preparing blueprints, a woodworker setting out complex joinery, or an engineer checking tight tolerances, this ruler provides reliable performance. Enhance your work area with a tool designed to last for a lifetime and measure with complete confidence.

Session recording