AI Humanizer Benchmark

AI Humanize

AI humanizer · aihumanize.io

In the October 2026 cycle, AI Humanize placed #5 of 11 with an overall score of 78.33/100. AI Humanizer Benchmark tests AI Humanize independently. The overall score weights bypass rate at 42%, meaning preservation at 32%, readability at 16% and consistency across categories at 10%, then subtracts any penalties.

78.33/100
overall score
89.5%
bypass rate
33/33
tests completed
0.99×
avg. length vs. input
Last tested
Sample size
33
Methodology
v1.1.0

Detector bypass rates

Average human-likelihood each detector gave this tool's outputs, shown as a percentage.

Grammarly
91.1
QuillBot
88.0
Winston AI
86.5
ZeroGPT
85.7
Originality.ai
85.5
Copyleaks
72.7
GPTZero
40.9

Performance by category

The overall-score formula applied within each category, before penalties.

Academic essayApplication essayBlog postBusiness emailMarketing copyDiscussion boardNews article

Output quality

Meaning preservation is the rescaled embedding cosine similarity between input and output. Readability is a language model's rating of clarity, fluency and naturalness. Consistency shows how evenly bypass results hold across writing categories. The published data lists each value for every test.

Meaning
66.4/100
#9 of 11 · field avg 70.6
Readability
72.1/100
#8 of 11 · field avg 75.5
Consistency
89.3/100
#7 of 11 · field avg 89.6

Penalties

  • Meaning drift × 1−1.0
  • Total−1.0 pts
Meaning drift · 1 testShow tests

The meaning similarity between input and output fell below 0.85. The rewrite no longer says what the input said.

  • How-to blog Blog post
    Similarity 0.844 < 0.85
    Show input and output
    Input · 284 words
    # How to Ask for a Promotion After a Big Project Ships **Timing Matters** Wait 2-4 weeks after project launch to request a meeting. This allows you to assess results and gives stakeholders distance to evaluate impact objectively. Avoid asking immediately—you'll appear opportunistic rather than strategic. **Document Your Impact** Gather concrete metrics: revenue generated, costs saved, user adoption rates, or efficiency improvements. Quantify your contributions clearly. Note leadership moments, mentorship provided, and how you solved critical problems. This isn't bragging—it's evidence. **Prepare a Clear Narrative** Articulate what you did beyond your job description. Explain how the project expanded your responsibilities and capabilities. Connect your growth to the next level's requirements. Show that you've already been performing at a higher level. **Schedule Strategically** Request a dedicated meeting with your manager—don't ambush them. Email should be direct: "I'd like to discuss my career growth and contributions. Do you have 30 minutes this week?" This signals professionalism and gives them time to prepare. **During the Conversation** Lead with appreciation for opportunities you've received. Present your accomplishments without defensiveness. Be specific: "The project shipped on time under budget, and I led the cross-functional coordination." Ask directly: "Based on my contributions, I believe I'm ready for promotion to [position]. What are your thoughts?" **Listen to Feedback** Your manager may say yes, outline next steps, or identify gaps. If they hesitate, ask what's needed: "What would help me get there?" Take notes and create an action plan. **Follow Up** If the answer is no, schedule a 90-day check-in. Continue demonstrating value and addressing feedback. If yes, confirm details in writing. Remember: asking for promotion isn't entitlement—it's advocating for fair recognition of expanded contributions. Done professionally, it strengthens your career trajectory.
    Output · 341 words
    # How to Seek a Promotion Following the Successful Completion of a Major Project **Choose the Right Time** After the launch of the project, wait for 2-4 weeks before organizing a meeting. This waiting time enables to reach some results and provides the stakeholders with the required distance to analyze the project’s influence impartially. Do not ask for a meeting right away; otherwise you will give people an impression of opportunism instead of strategic thinking. **Gather Information About Your Achievements** Collect all data about the key indicators of your work: profits earned, expenses saved, number of users and the increased efficiency of the process. Be specific about your contributions to the work. Note the leadership positions you held and the hard cases you had to deal with. This is not boasting but a proof of your success. **Prepare Your Speech in Advance** Outline what you have done apart from your job duties and describe how this particular project has broadened your functions and responsibilities. Connect your experience with what is demanded from people of a higher level. **Plan the Meeting Appropriately** Do not surprise your supervisor; send him/her a request for a meeting. Write in the direct manner saying that you wish to speak about your career advancement and your achievements at work. **During the Meeting** Announce your gratitude and express your appreciation of what you have accomplished so far. Mention your accomplishments and do not feel defensive. Be specific and mention that the project was finished on time and did not exceed the budget. Ask about the possibility of being promoted. **Listen to The Opinions of The Others** Your supervisor might give you a new job position and list all the further steps that need to be taken to get promoted. If he/she hesitates and does not agree to promote you, ask what the reason of the refusal is. **When The Process Is Complete** In case of negative answer, agree on the next meeting in 90 days. If you receive a positive answer, write down the details of the compensation.
    Detector scores for this run

These points come off the overall score. How penalties work

Evidence: every AI Humanize run

Each row is one October 2026 prompt that AI Humanize rewrote, with a dot for each of the 7 detectors. Green means the detector judged the rewrite human. Red means it scored the rewrite as AI. An empty circle means no score came back.

Download all 33 rows (.jsonl)

13 of 33 outputs passed all 7 detectors. The other 20 got an AI verdict from at least one detector or are missing a score.

#PromptInput modelGPTZeroWinston AIOriginality.aiZeroGPTGrammarlyQuillBotCopyleaksMedian
01Argumentative essayAcademic essayGemini 2.5 Flash0.99
02Lit reviewAcademic essayClaude Sonnet 51.00
03Cover letterApplication essayGPT-5.6 Luna0.76
04Personal statementApplication essayGemini 3.5 Flash1.00
05How-to blogBlog postClaude Haiku 4.51.00
06Listicle blogBlog postGPT-5.6 Terra0.56
07Business emailBusiness emailGemini 2.5 Flash0.99
08Landing copyMarketing copyClaude Sonnet 51.00
09Product descriptionMarketing copyGPT-5.6 Luna1.00
10Discussion postDiscussion boardGemini 3.5 Flash1.00
11News articleNews articleClaude Haiku 4.51.00
12Argumentative essayAcademic essayGPT-5.6 Terra0.98
13Lit reviewAcademic essayGemini 2.5 Flash1.00
14Cover letterApplication essayClaude Sonnet 50.56
15Personal statementApplication essayGPT-5.6 Luna1.00
16How-to blogBlog postGemini 3.5 Flash1.00
17Listicle blogBlog postClaude Haiku 4.50.60
18Business emailBusiness emailGPT-5.6 Terra0.87
19Landing copyMarketing copyGemini 2.5 Flash0.90
20Product descriptionMarketing copyClaude Sonnet 51.00
21Discussion postDiscussion boardGPT-5.6 Luna1.00
22News articleNews articleGemini 3.5 Flash1.00
23Argumentative essayAcademic essayClaude Haiku 4.50.99
24Lit reviewAcademic essayGPT-5.6 Terra0.90
25Cover letterApplication essayGemini 2.5 Flash0.13
26Personal statementApplication essayClaude Sonnet 50.98
27How-to blogBlog postGPT-5.6 Luna0.90
28Listicle blogBlog postGemini 3.5 Flash1.00
29Business emailBusiness emailClaude Haiku 4.50.44
30Landing copyMarketing copyGPT-5.6 Terra1.00
31Product descriptionMarketing copyGemini 2.5 Flash1.00
32Discussion postDiscussion boardClaude Sonnet 51.00
33News articleNews articleGPT-5.6 Luna1.00
Detector rate (mean human-likelihood)40.9hardest86.585.585.791.188.072.7
Runs passed15/3330/3328/3330/3332/3332/3324/33

Each detector's result is converted to a human-likelihood score between 0 and 1. A score of 0 means the detector is sure the text is AI. A score of 1 means it is sure the text is human. Dots are green at 0.50 or above and red below. Hover a dot to see its exact score. The 0.50 cut-off only sets the dot colors. A tool's bypass rate on the leaderboard takes the median of the 7 detector scores for each test, then averages those medians. That gives a continuous number, so it will not match the share of green dots. The same goes for each per-detector rate. It is the average of that detector's scores (the number detector pages rank by), not a count of green dots.

Score history

Overall score in every published cycle that included this tool.

255075100

Access

Starting price
$15.00/mo
Free tier
Yes
Public API
Yes (required for inclusion)

Lowest paid plan at the monthly rate, without any annual discount. Price does not affect the score.

How we tested

The tool rewrote 33 texts from 7 writing categories on its default settings. Then 7 independent AI detectors scored each output. Anyone can recompute every score from the published data.

Raw test data

Every input text from the October 2026 cycle, with this tool's rewrite, the settings used and each detector's score.

AI Humanize
33 rows · .jsonl

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