Head to head · October 2026 cycle
Grammarly vs Stealth Writer
Stealth Writer finished 4.7 points ahead of Grammarly in the October 2026 cycle, 65.98 to 61.29, ranking #8 against #14 in a field of 14. Stealth Writer scored higher on 5 of 6 detectors and 4 of 6 writing categories. Grammarly came out ahead on readability (72.2 vs 41.8), meaning preservation (85.5 vs 71.6) and news article prompts (68.0 vs 55.4).
- Detectors
- 0 – 5 (1 tie)
- Categories
- 2 – 4
- Components
- 2 – 2 (1 tie)
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 →
Detector by detector
Share of each tool's outputs that a detector classified as human-written. Stealth Writer took 5 of 6, with 1 tied.
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. Stealth Writer has finished ahead in 5 of 5 shared cycles.
| Cycle | Grammarly | Stealth Writer | Margin |
|---|---|---|---|
| October 2026 | 61.29 #14 | 65.98 #8 | → 4.7 |
| September 2026 | 60.35 #12 | 75.39 #2 | → 15.0 |
| August 2026 | 52.91 #11 | 69.83 #3 | → 16.9 |
| July 2026 | 53.38 #12 | 68.07 #4 | → 14.7 |
| June 2026 | 56.50 #12 | 84.47 #1 | → 28.0 |
Where each one wins
Every measure above that one tool won outright, largest margin first within each group.
Grammarly
4 wins- Readability Score 72.2 vs 41.8
- Meaning preservation Score 85.5 vs 71.6
- News Article Category 68.0 vs 55.4
- Marketing Copy Category 57.7 vs 57.4
Stealth Writer
11 wins- Bypass rate Score 71.3 vs 38.1
- Consistency Score 94.6 vs 93.6
- Originality.ai Detector 99.9 vs 52.4
- ZeroGPT Detector 90.7 vs 43.7
- Copyleaks Detector 96.7 vs 58.2
- GPTZero Detector 40.9 vs 3.0
- Winston AI Detector 99.4 vs 71.6
- Blog Post Category 68.3 vs 56.8
- Academic Essay Category 66.8 vs 61.8
- Discussion Board Category 54.2 vs 50.1
- 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 →Cover Letter · Application Essay · written by gpt-6-sol · 393 words
Dear Hiring Manager,
I am excited to apply for the freelance documentary editor position. I love shaping real stories into films that feel honest, engaging, and memorable. Your project offers the chance to do what I value most as an editor: find the emotional thread in a wealth of material and build a narrative that respects both the people on screen and the audience watching.
My approach begins with listening. Before I make major cuts, I spend time with the footage, interviews, and production notes to understand what the contributors are saying and what may be unfolding beneath the surface. From there, I look for a structure that gives the story momentum without forcing it into a shape it does not fit. I pay close attention to pacing, transitions, and the relationship between dialogue, images, and sound, while keeping the film’s central question in view.
Freelance work has taught me to be both collaborative and self directed. I welcome thoughtful feedback, communicate clearly about editorial choices, and stay organized through revisions and delivery. I am comfortable working closely with directors and producers to test different approaches, whether that means rethinking an opening, tightening an interview sequence, or finding a more satisfying ending. I also know when to step back, offer a fresh perspective, and let the strongest moments breathe.
What draws me to documentary editing is the balance of craft and responsibility. A strong cut can create tension, clarity, and feeling, but it should never lose sight of the real people behind the footage. I aim to build trust with collaborators by handling sensitive material carefully, flagging questions early, and remaining open to nuance. When a story changes direction in the edit, I see that not as a setback but as an opportunity to follow what the material reveals.
I would bring curiosity, patience, and a sharp eye for story to this project. I can adapt to your workflow, maintain a reliable editing schedule, and provide clear versions for review so the team can make decisions efficiently. Whether the assignment calls for a rough cut, fine cut, or targeted sequence work, I would be glad to help bring the documentary to its strongest form.
Thank you for considering my application. I would welcome the opportunity to discuss the project, your editorial goals, and how I could contribute to the team.
Sincerely, [Your Name]
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491 words (input 393)
Dear Hiring Manager,
I'm happy to be applying for the freelance documentary editor role. I enjoy taking real stories and turning them into films that are honest, interesting, and memorable. This project provides an opportunity to do exactly what I place the highest value on as an editor—identifying the emotional thread among a large amount of material and creating a narrative that honours both the people appearing on screen and the audience who is watching.
My method starts with listening. Before carrying out any significant cuts, I take the time to go through the footage, the interviews, and the production notes in order to get a clear understanding of what the various contributors have said and to pick up anything that might be happening underneath the surface. On this basis, I seek out a structure which gives the story a sense of momentum without forcing it into a form that it doesn't suit. I carefully consider the pacing, the transitions, and the way the dialogue, the images, and the sound relate to one another, always keeping in mind the film's main question.
Working freelance has taught me to be both collaborative and self-directed. I enjoy receiving careful feedback, make my views on editorial matters clear, and keep myself organised during the process of revising and delivering the work. I am at ease in working closely with directors and producers to try out various methods, such as reconsidering the opening, tightening an interview sequence, or arriving at a more satisfying ending. At the same time, I know how to step back, provide a new point of view, and allow the most effective moments to stand on their own.
It is the combination of skill and responsibility that attracts me to documentary editing. While a good edit can produce a sense of tension, clarity, and emotion, it must never overlook the actual people who appear in the footage. To earn the confidence of my colleagues I make sure to treat delicate material with care, raise any issues at an early stage, and stay willing to consider different interpretations. If the story takes a new direction during the editing process, I regard this not as a failure but as a chance to pursue what the material shows.
For this project I will show curiosity, have patience and keep a keen eye on the story. I will adjust myself to your way of working, stick to a reliable editing timetable, and give clear versions for review so that the team can make their decisions efficiently. Whatever the task may be—whether it involves a rough cut, a fine cut or specific sequence work—I would be pleased to assist in getting the documentary to its best form.
Thank you for taking the time to consider my application; I should be pleased to have the chance to talk about the project, your editorial objectives, and the way in which I can contribute to the team.
Sincerely, [Your Name]
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- GPTZero0.00caught
- Pangram0.00caught
- Winston AI0.00caught
- ZeroGPT0.54passed
- Copyleaks0.59passed
- Originality.ai0.99passed
Passed 3 of 6 detectors.
Every Grammarly run in October 2026 →465 words (input 393)
Dear Hiring Manager,
I'm thrilled for the opportunity to work as a freelance documentary editor. My favorite aspect of filmmaking is taking an honest, interesting, and memorable story, and turning it into a great film. Your project is an opportunity to do what I enjoy most as an editor: weaving a thread of emotion through a trove of information, crafting a story with respect to people on screen, and an audience watching.
It always starts with a listening. Before I do any cuts, I take some time to get to know the footage, the interviews and the production notes to see what's on the contributors' mind and what might be going on under the surface. From that point, I try to find a structure where the story moves and does not have to be made to fit some fixed shape. Attends to pacing, transitions and connections dialogue makes to pictures and audio, and maintains the central question of the film in mind.
I know how to work collaboratively as well as self directed from freelance activities. Accepts constructive comments, clearly explains editorial decisions, and maintains order during revisions and delivery. From reframing an opening, editing an interview to make more sense or discovering a more satisfying conclusion, I'm at ease working hand-in-hand with the Directors and Producers trying on different solutions. I also have an understanding of when to step away, providing an alternate perspective, and allowing the best moments to breathe.
Documentary editing is interesting to me because I find the process creative and I find editing with that responsibility to be challenging yet creative. Angles and cuts should be tight and strong, in order to produce tension and clarity and allow these ‘feelings' to exist, but you must never forget that the people in the footage are real. To be honest with collaborators – deal sensitively with material, mark up questions from the beginning and be open to nuance in developing a trust of collaborators. I don't think it as a fault if a story starts to go in a different direction in the edit, I think of it as a present and a opportunity to let the material tell us what to do.
I would contribute curiosity, patience and enlightened eyes to this project. I am able to get my hands dirty in your workflow, stick to a tight editing schedule and deliver clear versions for review, enabling the team to efficiently make their decisions. From a rough cut to fine cut to a targeted sequence work, I'd be happy to help make the documentary the best it can be.
I appreciate your consideration of my application. It would be great to talk about the project, your editorial aims and what I could do as a part of it.
Sincerely, [Your Name]
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- GPTZero0.00caught
- Pangram0.00caught
- Winston AI1.00passed
- ZeroGPT0.91passed
- Copyleaks1.00passed
- Originality.ai1.00passed
Passed 4 of 6 detectors.
Every Stealth Writer 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 Grammarly better than Stealth Writer?
Stealth Writer finished 4.7 points ahead of Grammarly in the October 2026 cycle, 65.98 to 61.29, ranking #8 against #14 in a field of 14. Stealth Writer scored higher on 5 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, Grammarly or Stealth Writer?
Stealth Writer posted the higher bypass rate, 71.3 vs 38.1, and scored higher on 5 of 6 detectors. Stealth Writer led on GPTZero, Originality.ai, Copyleaks, Winston AI and ZeroGPT.
Do Grammarly and Stealth Writer keep the original meaning?
Grammarly preserved meaning better, 85.5 vs 71.6 on our 0–100 similarity scale. On readability, Grammarly rated higher, 72.2 vs 41.8. Penalties this cycle: Grammarly −3.0, Stealth Writer −3.0.