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

Head to head · October 2026 cycle

Humanize AI Pro vs StealthGPT

StealthGPT finished 5.6 points ahead of Humanize AI Pro in the October 2026 cycle, 74.50 to 68.87, ranking #2 against #5 in a field of 14. StealthGPT scored higher on 5 of 6 detectors and 5 of 6 writing categories. Humanize AI Pro came out ahead on penalties (−1.0 vs −3.0), meaning preservation (75.0 vs 61.8) and discussion board prompts (68.8 vs 57.2).

68.87 /100
overall score
#5 /14
rank ▲ 2
+5.63
StealthGPT leads →
Detectors
1 – 5
Categories
1 – 5
Components
3 – 2
74.50 /100
overall score
#2 /14
rank ▲ 7

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 →

Bypass rate StealthGPT by 24.7
63.4 88.1
Meaning preservation Humanize AI Pro by 13.2
75.0 61.8
Readability StealthGPT by 10.4
62.2 72.6
Consistency Humanize AI Pro by 2.1
93.0 90.9
Penalties fewer is better Humanize AI Pro by 2.0
−1.0 −3.0

Detector by detector

Share of each tool's outputs that a detector classified as human-written. StealthGPT took 5 of 6.

GPTZero StealthGPT by 40.2
54.6 94.8
Originality.ai StealthGPT by 10.5
85.7 96.3
Copyleaks StealthGPT by 29.5
70.5 100.0
Winston AI Humanize AI Pro by 5.7
96.1 90.4
ZeroGPT StealthGPT by 4.1
73.2 77.3
Pangram StealthGPT by 69.7
0.3 69.9

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 →

Academic Essay Application Essay Blog Post Marketing Copy Discussion Board News Article Academic Essay: Humanize AI Pro 69.9 · StealthGPT 73.6 Application Essay: Humanize AI Pro 68.3 · StealthGPT 73.4 Blog Post: Humanize AI Pro 67.1 · StealthGPT 70.4 Marketing Copy: Humanize AI Pro 65.1 · StealthGPT 69.7 Discussion Board: Humanize AI Pro 68.8 · StealthGPT 57.2 News Article: Humanize AI Pro 50.6 · StealthGPT 84.0
Humanize AI Pro StealthGPT Outer ring = 100
Academic Essay 6 prompts StealthGPT by 3.7
69.9 73.6
Application Essay 6 prompts StealthGPT by 5.1
68.3 73.4
Blog Post 6 prompts StealthGPT by 3.3
67.1 70.4
Marketing Copy 6 prompts StealthGPT by 4.6
65.1 69.7
Discussion Board 3 prompts Humanize AI Pro by 11.6
68.8 57.2
News Article 3 prompts StealthGPT by 33.4
50.6 84.0

Head-to-head history

Overall score in every cycle both tools were tested. Humanize AI Pro has finished ahead in 3 of 5 shared cycles.

40 50 60 70 80 June 2026 July 2026 August 2026 September 2026 October 2026 June 2026: StealthGPT 71.47 (#7) June 2026: Humanize AI Pro 68.05 (#9) July 2026: StealthGPT 61.52 (#8) July 2026: Humanize AI Pro 70.49 (#3) August 2026: StealthGPT 45.55 (#12) August 2026: Humanize AI Pro 71.40 (#2) September 2026: StealthGPT 65.10 (#9) September 2026: Humanize AI Pro 70.07 (#7) October 2026: StealthGPT 74.50 (#2) October 2026: Humanize AI Pro 68.87 (#5) 68.9 74.5
Humanize AI Pro StealthGPT
Cycle Humanize AI Pro StealthGPT Margin
October 2026 68.87 #5 74.50 #2 → 5.6
September 2026 70.07 #7 65.10 #9 ← 5.0
August 2026 71.40 #2 45.55 #12 ← 25.9
July 2026 70.49 #3 61.52 #8 ← 9.0
June 2026 68.05 #9 71.47 #7 → 3.4

Where each one wins

Every measure above that one tool won outright, largest margin first within each group.

Humanize AI Pro

5 wins
  • Penalties Score −1.0 vs −3.0
  • Meaning preservation Score 75.0 vs 61.8
  • Consistency Score 93.0 vs 90.9
  • Winston AI Detector 96.1 vs 90.4
  • Discussion Board Category 68.8 vs 57.2

StealthGPT

12 wins
  • Bypass rate Score 88.1 vs 63.4
  • Readability Score 72.6 vs 62.2
  • Pangram Detector 69.9 vs 0.3
  • GPTZero Detector 94.8 vs 54.6
  • Copyleaks Detector 100.0 vs 70.5
  • Originality.ai Detector 96.3 vs 85.7
  • ZeroGPT Detector 77.3 vs 73.2
  • News Article Category 84.0 vs 50.6
  • Application Essay Category 73.4 vs 68.3
  • Marketing Copy Category 69.7 vs 65.1
  • and 2 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.

Cover Letter · Application Essay · written by gemini-3-8-flash · 369 words

[Your Name] [Your Phone Number] | [Your Email Address] [Your Portfolio/Vimeo Link] | [Your Location]

[Date]

[Hiring Manager's Name or Search Committee] [Production Company / Project Name] [Company Address / "Remote"]

Dear [Hiring Manager's Name or "Documentary Production Team"],

I am writing to express my strong interest in the freelance Documentary Editor position for [Project Title or "your upcoming documentary feature"]. Having followed your team's commitment to impactful, character-driven storytelling, I am eager to bring my narrative instincts, technical precision, and passion for non-fiction film to your post-production workflow.

With over [Number] years of experience editing documentary features, shorts, and docuseries, I specialize in transforming hundreds of hours of raw, vérité footage and sprawling interviews into compelling, cohesive three-act structures. I view the documentary editor’s chair as the final rewrite of the script. My approach balances narrative tension and emotional authenticity with rigorous pacing, ensuring the subjects’ genuine voices remain the heartbeat of the film.

Recently, I served as lead editor on *[Title of a Recent Project]*, a [feature/short] documentary exploring [brief topic, e.g., environmental justice / an artist’s legacy]. On this project, I shaped the central narrative arc from over 150 hours of untranscribed footage, designed the temp soundscape, and worked closely with the director to refine the thematic rhythm. The film went on to [mention an achievement, e.g., screen at XYZ Film Festival / secure distribution / achieve strong audience acclaim].

Technically, I am fully equipped for a seamless remote or hybrid workflow. I am an advanced user of Adobe Premiere Pro, DaVinci Resolve, and Avid Media Composer, with extensive experience managing complex multi-cam timelines, archival integration, and offline-to-online finishing pipelines (including roundtripping for color and sound). Beyond the technical execution, my greatest asset is collaboration. Documentary editing is an intimate, iterative process, and I pride myself on being an ego-free creative partner who welcomes feedback, communicates proactively, and solves narrative bottlenecks with patience and resourcefulness.

I would love the opportunity to review your assembly or discuss your vision for [Project Title] in greater detail. Thank you for your time and consideration, and I look forward to the possibility of collaborating to bring this vital story to the screen.

Sincerely,

[Your Name] [Link to Showreel / Website]

Show the full input

385 words (input 369)

[Your Name] [Your Phone Number] | [Your Email Address] [Your Portfolio/Vimeo Link] | [Your Location]

[Date]

[Hiring Manager's Name or Search Committee] [Production Company / Project Name] [Company Address / "Remote"]

Dear [Hiring Manager's Name or "Documentary Production Team"],

It is my pleasure to apply for the role of the Documentary Editor (freelance position) for [Project Title or "your upcoming documentary feature"]. As someone who has long admired your dedication to meaningful storytelling, I am excited by the prospect of contributing to the editing process of your production through my unique editorial and storytelling abilities and skills.

Having [Number] years of professional experience as a documentary editor, I have mastered the art of turning hundreds of hours of unedited vérité footage and interview material into compelling narrative structures with carefully constructed three acts. For me, sitting in the chair of a documentary editor is the final rewrite of the script. It combines narrative urgency with pacing and the authenticity of the voice of the protagonists.

Most recently, I worked on *[Title of a Recent Project]* — a [feature/short] documentary telling a story about [brief topic, e.g., environmental justice / an artist's legacy]. On that project, I managed to construct the main storyline out of over 150 hours of untranscribed footage, created the temp soundscape, and worked together with the director on creating the right rhythm of the narrative. The result of our work was [mention an achievement, e.g., screening at XYZ Film Festival / distribution / success with audiences].

From the technical side, I am ready for an efficient remote or hybrid work process. As a highly experienced editor, I am proficient in using such programs as Adobe Premiere Pro, DaVinci Resolve, and Avid Media Composer; I am used to working with complex multicam timelines, working with archival footage, and conducting offline-to-online finishing process (including roundtripping for coloring and sound). Apart from technical aspects of work, however, my biggest strength is my ability to collaborate — documentary editing is a deeply collaborative and intimate process, and I always strive to be an egoless creative partner who listens well and communicates proactively.

I would love the opportunity to have a look at your assembly and discuss my vision of [Project Title] in more detail.

Thank you for your attention,

[Your Name] [Link to Showreel / Website]

Show the full output
  • GPTZero0.00caught
  • Pangram0.00caught
  • Winston AI1.00passed
  • ZeroGPT0.83passed
  • Copyleaks0.00caught
  • Originality.ai1.00passed

Passed 3 of 6 detectors.

Every Humanize AI Pro run in October 2026 →

307 words (input 369)

[Date]

[Documentary Production Team or Hiring Manager's Name]

[Company or Production Name]

[Address or “Remote”]

[City, State, Zip]

Dear [Hiring Manager's Name or Documentary Production Team],

As an experienced non-fiction editor, I am writing to express my interest in the freelance Documentary Editor opportunity for your upcoming documentary feature or project. Documentary editing is the last rewrite of the script, and I thrive on sculpting hours of vérité and copious amounts of interviews into a compelling three-act narrative, striking the right balance of emotional truth, a clear voice for the subject(s), tension, and pace.

On my most recent documentary [feature/short] I served as the lead editor, building the story from the ground-up from more than 150 hours of untranscribed material. In close collaboration with the director, I carved a strong narrative arc and thematic through-line out of an overwhelming amount of material. My job was to create a temporary soundscape for the piece and fine-tune its pace to maximize impact.

My experience with the full gamut of non-fiction post-production tasks, including:

Advanced editorial workflows in Adobe Premiere Pro, DaVinci Resolve, and/or Avid Media Composer (pick the applicable NLE)

Building offline and online edits that incorporate archival footage, multiple-camera setups, color, and sound roundtripping, and other elements of the finishing process

An ego-free creative spirit that embraces iteration, experimentation, and collaboration

I look forward to the opportunity to dive into the nitty-gritty of your project and lend my experience to elevate and amplify its emotional impact. I’m available for remote or hybrid work, and value proactive communication to identify and work through story-blockers as they arise.

I would love to look at the assembly or learn more about your vision for the film. Thanks for your time and consideration.

Sincerely,

[YOUR NAME HERE]

[PHONE NUMBER HERE]

[LINK TO YOUR EDITOR SHOWREEL HERE]

[LINK TO YOUR LINKEDIN PROFILE HERE]

Show the full output
  • GPTZero1.00passed
  • Pangram0.00caught
  • Winston AI0.98passed
  • ZeroGPT0.51passed
  • Copyleaks1.00passed
  • Originality.ai1.00passed

Passed 5 of 6 detectors.

Every StealthGPT 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 Humanize AI Pro better than StealthGPT?

StealthGPT finished 5.6 points ahead of Humanize AI Pro in the October 2026 cycle, 74.50 to 68.87, ranking #2 against #5 in a field of 14. StealthGPT scored higher on 5 of 6 detectors and 5 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, Humanize AI Pro or StealthGPT?

StealthGPT posted the higher bypass rate, 88.1 vs 63.4, and scored higher on 5 of 6 detectors. Humanize AI Pro led on Winston AI; StealthGPT led on GPTZero, Originality.ai, Copyleaks, ZeroGPT and Pangram.

Do Humanize AI Pro and StealthGPT keep the original meaning?

Humanize AI Pro preserved meaning better, 75.0 vs 61.8 on our 0–100 similarity scale. On readability, StealthGPT rated higher, 72.6 vs 62.2. Penalties this cycle: Humanize AI Pro −1.0, StealthGPT −3.0.