Grammarly
Grammarly ranked #14 of 14 in the October 2026 cycle with an overall score of 61.29/100, after losing 3 points to penalties for length inflation. Winston AI passed its output most often (71.6%), and Pangram passed none of it. It did best on news articles and worst on discussion board posts.
Grammarly's AI humanizer is a feature of the Grammarly writing assistant, alongside its grammar, plagiarism and AI detection tools. It offers four preset voices, a custom voice learned from a writing sample, and six languages. Basic humanization on the web is free, and Grammarly Pro unlocks the full feature.
Watch the 2-minute review of Grammarly
- Overall score
- 61.29/100
- Detector bypass
- 38.1%
- Overall rank
- #14of 14
- Prompts tested
- 30
Detector Bypass Rates
Each detector's average human-likelihood score on this tool's outputs, where 100 means every output was scored as human.
Performance by Category
Category score across writing contexts: bypass credit only for real rewrites, blended with each category's meaning and readability. How it's computed
Strengths
- Meaning preservation of 85.5, the highest this cycle (field median 71.0)
- Readability of 72.2, above the field median of 59.5
Weaknesses
- Bypass rate of 38.1%, the lowest this cycle (field median 71.3%)
- Lost 3 points to penalties for length inflation
- Pangram classified none of its runs as human-written
From the October 2026 cycle, compared with the other 13 tools ranked in that cycle.
Evidence: every run
Every prompt Grammarly was run on in October 2026, and how each of the 6 detectors scored the output. Green: the detector called it human-written. Red: it was caught.
0 of 30 outputs passed all 6 detectors; 30 were caught by at least one.
| Prompt | GPT GPTZero | Pan Pangram | Win Winston AI | Zero ZeroGPT | Copy Copyleaks | Orig Originality.ai | Mean | Recording |
|---|---|---|---|---|---|---|---|---|
| Landing Copy · gemini-3-8-flash | caught | caught | passed | caught | caught | caught | 0.25 | |
| Product Desc · gemini-3-8-flash | caught | caught | caught | caught | passed | caught | 0.26 | |
| Landing Copy · gpt-6-sol | caught | caught | passed | passed | passed | passed | 0.53 | |
| Discussion Post · gpt-6-sol | caught | caught | passed | passed | passed | caught | 0.44 | |
| Product Desc · gpt-6-sol | caught | caught | caught | caught | passed | caught | 0.17 | |
| Lit Review · claude-sonnet-5-5 | caught | caught | caught | caught | caught | caught | 0.22 | |
| Lit Review · gpt-6-sol | caught | caught | passed | caught | passed | passed | 0.53 | |
| Cover Letter · gpt-6-sol | caught | caught | caught | passed | passed | passed | 0.35 | |
| Howto Blog · gemini-3-8-flash | passed | caught | passed | passed | passed | passed | 0.63 | |
| Lit Review · gemini-3-8-flash | caught | caught | passed | passed | passed | caught | 0.54 | |
| Landing Copy · claude-sonnet-5-5 | caught | caught | passed | caught | passed | caught | 0.40 | |
| Personal Statement · gemini-3-8-flash | caught | caught | passed | passed | caught | passed | 0.37 | |
| Argumentative Essay · gpt-6-sol | caught | caught | passed | caught | caught | caught | 0.37 | |
| Listicle Blog · gemini-3-8-flash | caught | caught | passed | caught | passed | caught | 0.48 | |
| Personal Statement · claude-sonnet-5-5 | caught | caught | passed | passed | passed | passed | 0.63 | |
| Howto Blog · gpt-6-sol | caught | caught | passed | caught | caught | passed | 0.26 | |
| Product Desc · claude-sonnet-5-5 | caught | caught | passed | caught | passed | caught | 0.38 | |
| Listicle Blog · claude-sonnet-5-5 | caught | caught | passed | caught | caught | caught | 0.25 | |
| Argumentative Essay · claude-sonnet-5-5 | caught | caught | passed | caught | caught | caught | 0.29 | |
| News Article · gpt-6-sol | caught | caught | passed | caught | passed | caught | 0.34 | |
| Howto Blog · claude-sonnet-5-5 | caught | caught | passed | caught | caught | passed | 0.26 | |
| News Article · claude-sonnet-5-5 | caught | caught | passed | passed | passed | passed | 0.64 | |
| Discussion Post · gemini-3-8-flash | caught | caught | caught | passed | passed | passed | 0.45 | |
| Discussion Post · claude-sonnet-5-5 | caught | caught | passed | caught | caught | caught | 0.22 | |
| Cover Letter · gemini-3-8-flash | caught | caught | passed | caught | caught | passed | 0.21 | |
| Listicle Blog · gpt-6-sol | caught | caught | passed | caught | passed | caught | 0.43 | |
| Cover Letter · claude-sonnet-5-5 | caught | caught | caught | passed | caught | passed | 0.28 | |
| Personal Statement · gpt-6-sol | caught | caught | passed | caught | passed | passed | 0.56 | |
| News Article · gemini-3-8-flash | caught | caught | passed | passed | passed | passed | 0.56 | |
| Argumentative Essay · gemini-3-8-flash | caught | caught | caught | caught | caught | passed | 0.18 | |
| Detector rate (mean human-likelihood) | 3.0 | 0.0 hardest | 71.6 | 43.7 | 58.2 | 52.4 | ||
| Runs passed | 1/30 | 0/30 | 23/30 | 11/30 | 18/30 | 15/30 |
A dot is green when the detector's human-likelihood score for that run was 0.50 or higher. The detector rate is the mean of that detector's scores across the runs, the same number the detector pages rank by; it is not the count of green dots, which the Runs passed row shows. Hover a dot for the score.
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.
History
Overall score compared with other ranked tools.
6.3 points below the median of 13 other tools in October 2026.
The shaded band is the 25th–75th percentile of other tools in each cycle. Scores are out of 100; higher is better.
Monthly pricing
Standard USD rates, billed month to month. Annual discounts and promotions excluded.
-
Pro
$30.00/moPer member per month, for the Grammarly writing platform.
- Includes the full Humanizer experience. No separate monthly humanizer word allowance is published.
Free access and trials
The public humanizer is free, with up to 1,500 input words per request. A total recurring allowance is not published.
- General AI prompt budgets are not humanizer word or rewrite quotas. Pro free trials are offered periodically, not guaranteed.
Sample output
One AI-written passage from the October 2026 cycle and what Grammarly returned for it. This prompt was picked by a fixed rule, not by how the tool scored.
AI-written input
Every tool on this prompt →Listicle Blog · Blog Post · written by gemini-3-8-flash · 453 words
# 10 Tips for Mechanical Keyboards for Typists
If you spend your days writing, coding, or just firing off endless emails, you know the struggle of mushy laptop keys. Upgrading to a mechanical keyboard is a total game-changer for your fingers, your speed, and let’s be honest—your desk aesthetic.
Ready to make the jump? Here are 10 quick tips to get the ultimate typing experience.
### 1. Embrace the Tactile Bump Skip the ultra-sensitive "linear" switches favored by twitchy gamers. Typists usually fall in love with **tactile switches** (like Cherry MX Browns or Gateron Pro Browns). They give you a satisfying little "bump" the moment the key registers, which trains your brain to stop bottoming out.
### 2. Think Twice About the "Click" Blue switches sound amazing in YouTube sound tests, but in real life? They are *loud*. If you share a home or work in an office, skip the clicky switches unless you actively want your coworkers to revolt.
### 3. Choose the Right Layout Full-sized boards take up a ton of real estate. Typists often thrive on a **75% or Tenkeyless (TKL)** board. They keep the essential arrow and navigation keys while letting your mouse sit closer to your body for better ergonomics.
### 4. PBT Keycaps Are Worth It Cheap keyboards come with ABS plastic caps that get shiny and greasy after a few months. Look for **PBT keycaps**. They have a textured, matte finish that feels premium and never wears down.
### 5. Get a Wrist Rest Mechanical keyboards sit higher off the desk than low-profile chiclet boards. A simple wooden or foam wrist rest will keep your hands at a neutral angle and save your wrists from strain.
### 6. Hunt for Hot-Swappable Boards Don’t know which switch you like best? Buy a **hot-swappable** keyboard. It lets you pop switches in and out with a tiny tool—no soldering iron required.
### 7. Try a Deeper Profile Keycaps come in different shapes, called profiles. Look into **OEM, Cherry, or sculpted profiles** that naturally cup your fingertips. It makes finding home row effortless.
### 8. Use a Desk Mat A giant mousepad or felt desk mat isn’t just for looks. It absorbs the low-end vibrations of your typing, making the board feel softer and sound way better.
### 9. Don’t Sleep on Low-Profile If high-profile mechanicals feel like too much of a leap from your MacBook, try a low-profile board (like the NuPhy Air series). You get the mechanical feel without the steep learning curve.
### 10. Learn to "Float" Typing on a mechanical keyboard requires a lighter touch. Practice gliding over the keys rather than mashing them into the desk. Your typing speed—and your joints—will thank you.
Happy typing!
Show the full input Show less
Grammarly output
607 words (input 453)
# 10 Tips for Mechanical Keyboards for Typists
Anyone who spends their days writing, coding or simply sending an endless number of emails will surely be familiar with the problem of spongy laptop keys. Making the switch to a mechanical keyboard is a complete game-changer for your fingers, your typing speed, and to be honest with you—also improves your desk's look.
If you're ready to make the change, here are 10 simple tips for achieving the best possible typing experience.
### 1. Make use of the tactile bump It's best to avoid the extremely sensitive 'linear' switches that twitchy gamers prefer. Typists generally end up liking tactile switches (for example Cherry MX Browns or Gateron Pro Browns) since they provide a satisfying little 'bump' as soon as the key is registered, which in turn teaches your brain to stop bottoming out.
### 2. Think Carefully Before the "Click" Blue switches sound great in the YouTube audio tests, but in actual use they are *loud*. If you live with other people or work in an office, don't choose the clicking switches unless you really want your colleagues to get upset.
### 3. Select the Appropriate Layout Full-sized keyboards occupy a great deal of space. Many typists prefer a 75% or Tenkeyless (TKL) layout since it includes the necessary arrow and navigation keys and at the same time allows the mouse to be placed nearer to the body for improved ergonomics.
### 4. The Keycaps Made from PBT Are Worth It The keycaps on cheap keyboards are made from ABS plastic and end up looking shiny and oily after a few months have passed. You should look for PBT keycaps since they have a textured, matte finish which gives a premium feel and never wear down.
### 5. Get a Wrist Rest Compared to low-profile chiclet keyboards, mechanical keyboards are higher off the desk, and using a simple wooden or foam wrist rest will hold your hands in a neutral position and prevent strain on your wrists.
### 6. The search for hot-swappable boards If you're not sure which switch you'd prefer, then buy a hot-swappable keyboard since it allows you to insert and remove the switches using a small tool—there's no need for a soldering iron.
### 7. Attempt a more detailed profile Keycaps are available in a variety of shapes, known as profiles. You should consider **OEM, Cherry, or sculpted profiles** since they naturally form a cup around your fingertips, making it easy to locate the home row.
### 8. Use a Desk Mat
A desk mat can protect your desk from scratches, spills, and heat. It also gives you a smooth surface for writing or using your mouse. Some desk mats come with extra features, like built-in organizers or charging pads. Choose a mat that fits your desk and matches your style. A huge mousepad or felt desk mat is not only a matter of appearance; it dampens the low-frequency vibrations caused by typing, which makes the surface feel softer and the sound much better.
### 9. Don't overlook the less prominent ones If the mechanical switches that are well known to you seem like a big jump from your MacBook, then have a go at a low-profile board (for example, the NuPhy Air series). You'll enjoy the mechanical feel without having to face a steep learning curve.
### 10. Learning how to 'Float' When you are typing on a mechanical keyboard you need to use a lighter touch. Instead of hitting the keys hard into the desk, try to slide your fingers over them. Both your typing speed and your joints will benefit.
Happy typing!
Show the full output Show less
- GPTZero0.00caught
- Pangram0.00caught
- Winston AI1.00passed
- ZeroGPT0.39caught
- Copyleaks1.00passed
- Originality.ai0.48caught
Passed 2 of 6 detectors.
Every Grammarly 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.
Penalties applied this cycle
How penalties work →The overall score shown above already reflects these deductions.
- Length inflation ×3−3.0
The output ran much longer than the input, a common trick that pads text to dilute the AI signal.
Compare with
Featured in
Questions about Grammarly
Answers are generated from the benchmark data and update every month. Last updated with the October 2026 cycle.
Is Grammarly good?
Grammarly ranked #14 of 14 in the October 2026 HumanizerBench cycle with an overall score of 61.29/100, below the field median of 66.78. On the parts of the score, it placed #14 of 14 on detector bypass, #1 of 14 on meaning preservation and #2 of 14 on readability. The score includes a 3-point deduction for length inflation.
Does Grammarly bypass AI detectors?
In the October 2026 cycle, Grammarly had a detector bypass rate of 38.1% (#14 of 14 tools). 0 of its 30 outputs passed all 6 detectors, and 30 were caught by at least one. Its average human-likelihood score from each detector, where 100 means every output was scored as human: Winston AI 71.6, Copyleaks 58.2, Originality.ai 52.4, ZeroGPT 43.7, GPTZero 3.0 and Pangram 0.0.
Can Grammarly bypass GPTZero?
In the October 2026 cycle, Grammarly's average human-likelihood score from GPTZero was 3.0 out of 100 (#14 of 14 tools against GPTZero). The highest average GPTZero score that cycle was 99.5, by WriteHuman. See every tool's GPTZero results.
Is Grammarly free?
The public humanizer is free, with up to 1,500 input words per request. A total recurring allowance is not published. Paid plans start at $30.00 a month, billed monthly.
Is Grammarly legit?
Grammarly is a working AI humanizer at grammarly.com. HumanizerBench has tested it in 5 monthly cycles, most recently October 2026, when it completed 30 of 30 test runs. Every input and output from its runs is published with each detector's verdict.
Does Grammarly keep the original meaning?
Grammarly scored 85.5 out of 100 for meaning preservation in the October 2026 cycle (#1 of 14; field median 71.0). The score measures how close each rewrite stays to the meaning of the original text. Its readability score was 72.2 (#2 of 14). It lost 3 points to penalties for length inflation.
Which kinds of writing does Grammarly handle best?
In the October 2026 cycle, Grammarly did best on news articles (68.0/100) and worst on discussion board posts (50.1/100). On academic essays it ranked #12 of 14.
How has Grammarly ranked over time?
Grammarly has been ranked in 5 HumanizerBench cycles: #12 in June 2026, #12 in July 2026, #11 in August 2026, #12 in September 2026 and #14 in October 2026. Its overall score went from 56.50 in June 2026 to 61.29 in October 2026.
What are the best alternatives to Grammarly?
In the October 2026 cycle, 13 tools ranked above Grammarly. The top three were WriteHuman (#1, 74.89/100), StealthGPT (#2, 74.50/100) and Undetectable.ai (#3, 71.18/100). Compare Grammarly with any of them side by side.
Badges
Grammarly is ranked in the October 2026 cycle, so it can embed any of these cards for free, and the live file re-renders every cycle, including when a rank falls. Usage rules →
Pinning a month for a press page? Use https://humanizerbench.com/badge/grammarly/october-2026.svg, which renders October 2026 forever.