AI Humanizer Benchmark
← October 2026 prompts

Business email

Business email · 195 words · prompt business_email

2
passed at least 6 detectors
10
failed at least one detector
11
tools tested on this prompt
Copyleaks
strictest detector here, flagged 10 of 11 rewrites

Input text

Written by Gemini 2.5 Flash for this cycle. Every tool below received this exact text.

Subject: Exciting New Pilot Program: Interdepartmental Job Swap! Hi Team, I'm thrilled to announce an exciting new pilot program designed to foster collaboration, enhance skill development, and provide fresh perspectives across our organization: an interdepartmental job-swap program! This initiative will allow selected team members to temporarily switch roles with a colleague in a different department for a period of four…Show full input (195 words)
Subject: Exciting New Pilot Program: Interdepartmental Job Swap! Hi Team, I'm thrilled to announce an exciting new pilot program designed to foster collaboration, enhance skill development, and provide fresh perspectives across our organization: an interdepartmental job-swap program! This initiative will allow selected team members to temporarily switch roles with a colleague in a different department for a period of four weeks. The goal is to provide participants with a deeper understanding of other departmental functions, promote cross-functional learning, and help us identify new efficiencies and innovative solutions. We believe this program will be incredibly beneficial, not only for individual growth but for strengthening our overall team dynamic. It’s an opportunity to step into another’s shoes, learn new skills, and bring back valuable insights to your home department. We're looking to launch the pilot with a small group initially, focusing on a few key departmental pairings. Further details regarding eligibility, application process, and timelines will be shared next week. In the meantime, please start thinking about how a job swap might benefit you and your department. I'm truly excited about the potential of this program and look forward to your enthusiasm and participation. Best, [Your Name]

How to read these scores

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.

Humanized outputs

Tools that passed more detectors come first. Ties are broken by overall rank this cycle. Each card shows the 7 detector scores, then the tool's rewrite.

WriteHumanRank #7 this cycle
7/7 detectors passed
GPTZero
1.00passed
Winston AI
1.00passed
Originality.ai
1.00passed
ZeroGPT
1.00passed
Grammarly
1.00passed
QuillBot
1.00passed
Copyleaks
1.00passed
Median
1.00
Meaning
86.0
Readability
62.0
Words
0.94× 195 → 183
Show output (183 words)
I'm excited to announce our new pilot program! It focuses on the essentials of teamwork, training and developing our team members and providing various points of view. It is an interdepartmental job swap program. This program allows participants to swap jobs with someone in a different department. This program is designed to help employees better understand different business unit functions and help to better define business unit functions and processes. We are convinced this program will help to improve the business and help to bring about innovative and creative ways to improve business processes. We will start this program on a small scale. This program will help bring about improved processes and better cross-departmental communication. We will meet with you next week to discuss this program in further detail. Until then, think about your department and how this job swap can help bring about better processes and improved communication with other departments. We are excited about this program and appreciate all of the great ideas you will share with us to further improve our processes and help to better communicate with all departments.
UndetectedGPTRank #1 this cycle
6/7 detectors passed
GPTZero
0.91passed
Winston AI
0.97passed
Originality.ai
1.00passed
ZeroGPT
1.00passed
Grammarly
1.00passed
QuillBot
0.80passed
Copyleaks
0.00caught
Median
0.97
Meaning
88.3
Readability
87.0
Words
0.98× 195 → 192
Show output (192 words)
# Subject: Interdepartmental Job Rotation Pilot Program Announcement Dear Team, I'd like to announce a new pilot program to build collaboration across departments, develop professional skills within the company and bring fresh thinking to different parts of the business. Under this program, selected members of teams could spend four weeks in each other's roles in another department. I hope this could add value for individuals in their professional development, and could strengthen the overall relationship between departments. In this program, you could experience another department firsthand, pick up new skills and, on returning to your own department, bring back useful insights across a range of areas. In the first instance, the program will run for a small group of people across a limited number of departmental pairings. Over the next week I will send out more information on eligibility, how to apply and timing of the program. In the meantime, I'd encourage each of you to consider whether a job rotation might add value to your department and to you. I think this could be a valuable program for our people and I hope you'll consider getting involved. Best regards, [Your Name]
GPTinfRank #3 this cycle
5/7 detectors passed
GPTZero
0.00caught
Winston AI
1.00passed
Originality.ai
1.00passed
ZeroGPT
1.00passed
Grammarly
0.78passed
QuillBot
0.95passed
Copyleaks
0.00caught
Median
0.95
Meaning
93.9
Readability
58.0
Words
0.96× 195 → 187
Show output (187 words)
Subject: Interdepartmental Job Swap Program: An Exciting Pilot Program! Hello, I’m excited to announce an innovative and exciting pilot program for our company. This program will enable the creation of collaboration, personal development and a whole new perspective among our employees. The program that I am talking about is an interdepartmental job swap program! In this program, we will allow our selected employees to temporarily switch jobs with one of the colleagues from a different department. We want to offer them this chance for a period of four weeks so that they could gain knowledge of the other departments' operations and develop in various aspects. I'm sure that this program will prove to be very helpful both individually and as a team. This program will give them the chance to know more about the other departments' operations and gain a lot of knowledge from it. We would like to conduct this pilot program with a selected number of departments for now. The details about the eligibility criteria for participation in this program will be discussed in detail next week. Looking forward to hearing from you, [Your Name]
SuperHumanizerRank #6 this cycle
5/7 detectors passed
GPTZero
0.45caught
Winston AI
0.98passed
Originality.ai
1.00passed
ZeroGPT
1.00passed
Grammarly
0.79passed
QuillBot
0.77passed
Copyleaks
0.00caught
Median
0.79
Meaning
94.8
Readability
62.0
Words
1.09× 195 → 212
Show output (212 words)
Dear [Recipient Name], Subject: Well Available New Pilot: Interdepartmental Job Swap! ## Hi Team, I'm excited to share a new pilot program that I'm initiating with the aim of bringing teams together, expanding our skill sets, and gaining new insights: an interdepartmental job-swap program! Participants will be given an opportunity to "swap" roles with a colleague in a different team for 4 weeks. This provides the opportunity for teams to learn more about their colleagues' work, share ideas, and identify new efficiencies and innovation. But we think this program will have a tremendous amount of value, perhaps not so much for you personally, but for our team's overall strength. It's an opportunity to walk in someone else's shoes, develop new skills, and return to your home department to share those lessons. We plan to start the pilot with a small sample of departments and a limited number of combinations (including a subset of six department pairings). Further information on who can take part, how to apply, and when the pilot will start, will be sent next week. In the meantime, begin to consider whether a job swap could work for you. I am excited about this program and hope your spark enthusiasm and engagement in the program. ## Best, ## [Your Name]
HIX BypassRank #2 this cycle
4/7 detectors passed
GPTZero
0.00caught
Winston AI
0.01caught
Originality.ai
0.80passed
ZeroGPT
1.00passed
Grammarly
1.00passed
QuillBot
0.69passed
Copyleaks
0.00caught
Median
0.69
Meaning
95.3
Readability
68.0
Words
1.02× 195 → 199
Show output (199 words)
New Pilot Program: Job Swap for a Day between Departments Hi Team, I'm excited to kick off a new pilot program aimed at increasing collaboration, skills development and diversity of thought throughout our company - an interdepartmental job-swap! Under this initiative, employees identified will be required to swap their roles with a peer from another department for four weeks. This is aimed at giving participants insight into the workings of different departments, building cross-functional awareness, and allowing us to discover efficiencies and inventive solutions. We see this in a very big way not only as an individual tool, but also something that will build us up, make us stronger (our team) as well. This is a chance to put yourself in someone else's shoes, learn new skills and return some of those insights to your home department. We want to roll out the pilot with minimal pairing of departments at the start. Details of eligibility, application process and timelines will be shared next week. I encourage you to start considering how a job swap may serve you and your department. I genuinely look forward to the possibilities presented by this program, and your excitement and participation. Best, [Your Name]
SmartHumanizerRank #4 this cycle
4/7 detectors passed
GPTZero
0.00caught
Winston AI
0.00caught
Originality.ai
1.00passed
ZeroGPT
0.90passed
Grammarly
1.00passed
QuillBot
0.79passed
Copyleaks
0.00caught
Median
0.79
Meaning
97.9
Readability
72.0
Words
1.01× 195 → 196
Show output (196 words)
# Subject: Exciting New Pilot Program: Interdepartmental Job Swap! Hi Team, I am delighted to announce an exciting new pilot program to promote collaboration, increase skill development and generate new perspectives throughout our organization: an interdepartmental job-swap program! Selected team members will have the opportunity to temporarily assume the role of a colleague in another department for four weeks. This experience should enhance understanding of other departmental operations, stimulate cross-functional learning and identify opportunities for new efficiencies and innovative approaches. This program should provide substantial benefit for individual growth and for strengthening our overall experience of teamwork. It will provide an opportunity to experience the work of others, acquire new skills and return with valuable information for your home department. Our initial experience with this program will be limited to a small number of selected departmental pairings. Additional information about eligibility, procedures for application and schedules for participation will be available next week. Meanwhile, please begin to consider the potential benefits of a job-swap experience for yourself and your department. Finally, I am extremely enthusiastic about the potential impact of this program and hope that you will share our excitement and participate enthusiastically. Best, [Your Name]
AI HumanizeRank #5 this cycle
4/7 detectors passed
GPTZero
0.00caught
Winston AI
0.12caught
Originality.ai
1.00passed
ZeroGPT
1.00passed
Grammarly
1.00passed
QuillBot
0.99passed
Copyleaks
0.00caught
Median
0.99
Meaning
94.3
Readability
72.0
Words
1.05× 195 → 204
Show output (204 words)
Subject: New Pilot Program: Job Swap Between Departments Hello Team, I am pleased to let you know about a new pilot program that will help collaborate, build up skills, and create new points of view – a job swap! The main idea of this program is to allow some selected members of the team to exchange their roles with the members of the other departmental units for a short period of four weeks. The program will help participants understand other operations in different departments, promote cross-functional learning, and find new ways and solutions within the organization. I am sure this program will bring lots of advantages regarding individual development and strengthening relationships within the team. It will give a participant an opportunity to gain new experience, learn new things, and return to the team with useful knowledge. The pilot program will be launched with a small group of participants from a few selected departments. More information about the selection process and eligibility will be sent next week. In the meantime, please think about how the job swap might help you and your department. I think it is a very promising program that will help us create a better environment for participation. Best, [Your Name]
CleverHumanizerRank #8 this cycle
3/7 detectors passed
GPTZero
0.00caught
Winston AI
0.14caught
Originality.ai
1.00passed
ZeroGPT
0.96passed
Grammarly
0.66passed
QuillBot
0.19caught
Copyleaks
0.00caught
Median
0.19
Meaning
95.7
Readability
72.0
Words
0.80× 195 → 156
Show output (156 words)
Subject: Exciting new pilot program: interdepartmental job swap! Hi team, I'm super excited to share with you news of a new pilot program that I think you'll be excited about as well! We are going to start a program that allows people to swap jobs with someone in another department for a period of 4 weeks. We think it would be a great way for people to experience what others do in other departments, share knowledge, and maybe even find new efficiencies within our departments. I think it will be a great opportunity for people, and we hope you will take part. We are hoping to start the program with just a few people in a couple of different departments, and we will be sharing more information about the process next week. In the meanwhile, think about how a job swap would benefit you and your department! I'm really looking forward to it. Best, [Your Name]
StealthGPTRank #9 this cycle
1/7 detectors passed
GPTZero
0.00caught
Winston AI
0.00caught
Originality.ai
0.54passed
ZeroGPT
0.00caught
Grammarly
0.00caught
QuillBot
0.50caught
Copyleaks
0.00caught
Median
0.00
Meaning
89.3
Readability
78.0
Words
0.60× 195 → 117
Show output (117 words)
Dear All, I am happy to inform you that we are launching a new job-swap pilot program in the coming months. This initiative involves a four-week period during which selected team members will temporarily switch roles with a colleague in a different department. The aim of the program is to increase employee knowledge of each other’s jobs, improve employee skills, and to encourage innovation and cross-departmental cooperation. We are starting out with a small pilot program with a limited number of departments involved in order to test the feasibility of the project. More information on how to apply will follow soon. I look forward to hearing from everyone as we launch this exciting program. Sincerely, [Your Name]
ReHumanizeRank #10 this cycle
1/7 detectors passed
GPTZero
0.00caught
Winston AI
0.00caught
Originality.ai
0.00caught
ZeroGPT
0.30caught
Grammarly
0.40caught
QuillBot
0.53passed
Copyleaks
0.00caught
Median
0.00
Meaning
92.8
Readability
87.0
Words
0.80× 195 → 156
Show output (156 words)
Subject: Trying Out a New Job Swap Program Hi Team, We're starting a new pilot program called an interdepartmental job swap. The idea is to get people from different departments to work in each other's roles for a month. We hope this will help us all understand how other departments work, learn new things, and find better ways of doing things. We think this will be good for everyone involved. It’s a chance to see things from a different point of view, gain new skills, and bring fresh ideas back to your own team. We'll start with a small group and specific department matches. More information about who can join and how to apply will come out next week. For now, start thinking about how this kind of swap could be useful for you and your department. I'm really looking forward to seeing how this goes and hope you'll be interested in participating. Best, [Your Name]
Undetectable AIRank #11 this cycle
0/7 detectors passed
GPTZero
0.00caught
Winston AI
0.00caught
Originality.ai
0.00caught
ZeroGPT
0.26caught
Grammarly
0.00caught
QuillBot
0.00caught
Copyleaks
0.00caught
Median
0.00
Meaning
97.5
Readability
62.0
Words
1.53× 195 → 299
Show output (299 words)
Subject: Exciting New Pilot Program: Interdepartmental Job Swap! Hi Team, I'm thrilled to announce an exciting new pilot program designed to foster collaboration, enhance skill development, and provide fresh perspectives across our organization: an interdepartmental job-swap program! We're trying something new - a chance for some team members to swap jobs with someone from a different department for a month. The idea is to help them get a better sense of what other teams do, learn from each other, and find new ways to work smarter. By doing this, we hope to come up with fresh ideas and improve how we do things. It's a great opportunity for people to see how different parts of the company work together and find ways to make our processes better. This program is going to be a game-changer, not just for personal development, but also for building a stronger team. It's a chance to see things from a different perspective, pick up new skills, and bring back fresh ideas to share with your colleagues. By doing so, you'll be able to contribute to your department in a more meaningful way, and that's what makes this program so exciting. We're planning to start small with our pilot program, focusing on a few key departments to begin with. More information on who's eligible, how to apply, and when things will happen will come out next week. For now, think about how swapping jobs could help you and your team - it's a great chance to learn something new and see things from a different perspective. This could be a really useful opportunity, so take some time to consider how it might work for you. I'm truly excited about the potential of this program and look forward to your enthusiasm and participation. Best, [Your Name]

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