AI Humanizer Benchmark
← November 2026 prompts

Business email

Business email · 188 words · prompt business_email

1
passed at least 6 detectors
10
failed at least one detector
10
tools tested on this prompt
Pangram
strictest detector here, flagged 10 of 10 rewrites

Input text

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

Subject: New Communication Guideline: No Internal Emails After 6 PM Hi Team, I'm writing to announce an important new guideline aimed at fostering a healthier work-life balance and protecting personal time: starting immediately, we will be implementing a "no internal emails after 6 PM" rule. This means we should refrain from sending internal emails to colleagues, direct reports, or managers…Show full input (188 words)
Subject: New Communication Guideline: No Internal Emails After 6 PM Hi Team, I'm writing to announce an important new guideline aimed at fostering a healthier work-life balance and protecting personal time: starting immediately, we will be implementing a "no internal emails after 6 PM" rule. This means we should refrain from sending internal emails to colleagues, direct reports, or managers between 6:00 PM and 8:00 AM on weekdays, and throughout the weekend. The intention behind this is to create a clearer boundary between work and personal life, allowing everyone to truly disconnect and recharge. We understand that urgent issues can sometimes arise. For truly critical, time-sensitive matters that cannot wait until the next workday, please use alternative communication methods like a phone call or a direct message, but consider if it's genuinely an emergency. Otherwise, please draft your email and schedule it to send during working hours. This policy reflects our commitment to employee well-being and productivity. By respecting each other's off-hours, we can all return to work refreshed and more focused. Thank you for your understanding and cooperation in making this a successful change. 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.

RephrasyRank #3 this cycle
6/7 detectors passed
GPTZero
0.99passed
Originality.ai
0.60passed
Copyleaks
1.00passed
Pangram
0.00caught
ZeroGPT
0.83passed
QuillBot
1.00passed
Grammarly
1.00passed
Median
0.99
Meaning
94.1
Readability
72.0
Words
0.89× 188 → 167
Show output (167 words)
New Communication Guideline: No Internal Emails After 6 PM Hi Team and All Staff, Starting immediately: a new guideline to help foster better communication, personal timing and more productive working environments! To better enhance work-life balance for our entire team, we will be implementing a “no internal emails after 6 PM” guideline. The idea is not to send internal emails to colleagues, direct reports or managers after 6:00 PM until 8:00 AM until the following morning. Also no emails throughout the weekend. This helps create a boundary between work and personal time. If there is truly an issue that cannot wait, make a phone call or direct message, if it is truly an emergency. Again, please draft the email and schedule it at a later time to send during working hours. This will help us respect each others off-hours and create a culture that supports our whole person approach to work. Thank you for your cooperation and all staff for making this change a successful one! Best,
CleverHumanizerRank #1 this cycle
5/7 detectors passed
GPTZero
0.00caught
Originality.ai
0.92passed
Copyleaks
1.00passed
Pangram
0.00caught
ZeroGPT
0.59passed
QuillBot
0.95passed
Grammarly
0.73passed
Median
0.73
Meaning
92.2
Readability
78.0
Words
0.85× 188 → 159
Show output (159 words)
New Communication Policy Hi Team, As part of our new policy for improving our work/life balance, we will be enforcing a no internal emails after 6pm policy. We ask that you do not send any internal emails to your colleagues, direct reports or managers between 6pm and 8am Monday-Friday and all day weekends. We want to encourage a healthy work/life balance. If you have an urgent issue to raise, we ask that you communicate via a phone call or direct message for truly urgent issues that cannot wait until the next working day. If you are unsure whether it is truly urgent, please write your email and set the email up to send during working hours. This policy is in place to ensure we look out for our employees and improve productivity. By respecting each others' time outside of work hours, we can come back to work feeling relaxed and focussed. Thank you for your understanding. Best [Your Name]
GPTinfRank #4 this cycle
4/7 detectors passed
GPTZero
0.56passed
Originality.ai
0.06caught
Copyleaks
0.00caught
Pangram
0.00caught
ZeroGPT
0.74passed
QuillBot
0.71passed
Grammarly
0.72passed
Median
0.56
Meaning
92.7
Readability
72.0
Words
0.96× 188 → 181
Show output (181 words)
Subject: New Communication Policy: No Internal Emails After 6 PM Hello Team, I am writing today to inform you about our new policy designed to help us strike a better balance between work and personal lives: from today onwards, we will no longer be allowed to send internal emails after 6 PM. It means that we will not be able to send any internal email to our colleagues, subordinates, or superiors between 6:00 PM and 8:00 AM on business days and all through the weekends. Our goal here is to make it possible for everyone to get some proper rest and disconnect from work. Of course, there might be emergencies when it will be impossible to avoid contacting your colleagues outside of working hours. In case of urgent issues, please use alternative communication channels such as calling someone or sending a message but make sure it is really an emergency. If it is not, then write your email and schedule it for sending in working hours. I hope this policy will be helpful to all of us. Best regards, [Your Name]
StealthGPTRank #8 this cycle
4/7 detectors passed
GPTZero
0.00caught
Originality.ai
0.94passed
Copyleaks
0.00caught
Pangram
0.00caught
ZeroGPT
1.00passed
QuillBot
0.77passed
Grammarly
1.00passed
Median
0.77
Meaning
87.8
Readability
82.0
Words
0.57× 188 → 108
Show output (108 words)
Dear All, Please be advised of a new email communication policy: From now on, no internal emails will be sent after 6 PM. This means that we should not send any internal emails to colleagues, direct reports, or managers from 6:00 pm to 8:00 am during weekdays and any day over the weekend. This policy is intended to give us all a clear separation between our work time and our personal time. If there are emergencies that need immediate attention, we should call or send a direct message, but only if it’s an emergency. Otherwise, please save the email and send it during normal work hours. Thanks, [Name]
UndetectedGPTRank #2 this cycle
3/7 detectors passed
GPTZero
0.00caught
Originality.ai
0.10caught
Copyleaks
0.00caught
Pangram
0.00caught
ZeroGPT
0.69passed
QuillBot
0.53passed
Grammarly
0.83passed
Median
0.10
Meaning
97.2
Readability
78.0
Words
1.07× 188 → 201
Show output (201 words)
Subject: New Communication Guideline: No Internal Emails After 6 PM Dear Team, I want to let you know of a new guideline we're putting in place to support a better work-life balance and more time for ourselves. Effective immediately, we will stop sending internal emails to our managers, direct reports and colleagues between 6 p.m. and 8 a.m. on weekdays and over the weekend. This is intended to help draw a line between work and our personal lives. It would let each of us step away from work more fully and refresh ourselves. Sometimes, unavoidably, an issue may come up that needs attention. And for time-sensitive, critical issues that couldn't reasonably wait until the next day, we could, for example, call someone or send a direct message. But before sending an email, ask yourself whether this is truly an emergency. If not, consider drafting your email to be sent during the workday. In this policy, we are recognizing the productivity and well-being of our people. In respecting each other's time outside of work, we could all come back to work more focused and refreshed. Please cooperate with this change and let me know if you have any questions. Sincerely, [Your Name]
SmartHumanizerRank #6 this cycle
3/7 detectors passed
GPTZero
0.00caught
Originality.ai
0.05caught
Copyleaks
0.00caught
Pangram
0.00caught
ZeroGPT
0.80passed
QuillBot
0.55passed
Grammarly
0.57passed
Median
0.05
Meaning
97.1
Readability
72.0
Words
1.14× 188 → 215
Show output (215 words)
Subject: New Communication Guideline: No Internal Emails After 6 PM Hi Team, I am pleased to announce a new initiative designed to promote a healthier work-life balance and protect personal time: Effective immediately, we will implement a "no internal e-mail after 6 p.m." policy. For that reason, we will avoid sending internal e-mail to colleagues, direct reports or supervisors between 6:00 and 8:00 a.m., and at all times on weekends. This will help establish a clearer distinction between work and personal time, and enable all employees to achieve true separation from work and time to restore energy. We recognize that there are occasionally urgent situations requiring immediate attention. For truly critical and time-sensitive problems that cannot await the next business day, alternative methods of communication (e.g., telephone call or direct message) should be used. However, consideration should be given to whether such situations represent true emergencies. Otherwise, e-mail messages should be prepared and scheduled for transmission during hours of regular business operations. This action reflects our commitment to the health and productivity of our employees. With mutual respect for hours away from work, we will all return to work with renewed energy and greater capacity for concentration. Thank you for your support and assistance in achieving a successful implementation of this policy. Best, [Your Name]
HIX BypassRank #7 this cycle
3/7 detectors passed
GPTZero
0.00caught
Originality.ai
0.05caught
Copyleaks
0.00caught
Pangram
0.00caught
ZeroGPT
1.00passed
QuillBot
0.55passed
Grammarly
0.80passed
Median
0.05
Meaning
97.4
Readability
75.0
Words
1.46× 188 → 275
Show output (275 words)
Subject: New Communication Guideline: No Internal Emails After 6 PM Hi Team, I am writing to share with you a very significant new policy designed to support employees in having a healthy work-life balance and protecting their personal time. Effective immediately, our organization has established a "No Internal Emails After 6 PM" policy. This will mean that during the week (Monday - Friday) you cannot send internal e-mails to your direct report, manager or colleague after 6 pm and before 8 am. This also includes sending internal e-mails over the weekend. The objective of this policy is to help establish a clear distinction between the time you spend working and the time you spend on your personal life. It should allow each person to disconnect from their jobs and recharge themselves. We realize there may be emergencies which require immediate attention. If you are dealing with a truly urgent matter that cannot wait until the beginning of the next business day, please use other forms of communication (e.g., phone call or direct message), however, please take time to determine whether this is an actual emergency. Otherwise, please create your email, and schedule it to be sent at the start of the next business day. This policy is a reflection of how important the well-being of our employees are to us and how much value we place on their productivity. Our ability to respect each other's off-hour time will allow each employee to come back to work feeling refreshed, focused, and ready for another day. Thank you for working with us during this transition, as we strive to make this a positive change. Best, [Your Name]
SuperHumanizerRank #5 this cycle
2/7 detectors passed
GPTZero
0.00caught
Originality.ai
0.08caught
Copyleaks
0.00caught
Pangram
0.00caught
ZeroGPT
0.11caught
QuillBot
0.57passed
Grammarly
0.75passed
Median
0.08
Meaning
96.5
Readability
78.0
Words
1.04× 188 → 196
Show output (196 words)
## Subject: New Communication Guideline: No Internal Emails After 6 PM Hi Team, I'm reaching out with some positive news: in an effort to promote a more balanced worklife and safeguard your time outside of the office, beginning immediately, we will be adopting a "no internal emails after 6 PM" practice. So this translates to: No internal emails to team members, direct reports and managers: between 6pm and 8am on weekdays and anytime on weekends. The idea behind it is to lessen the border between work and private life, so everyone can really take a breather and unplug. We know that sometimes urgent issues may occur. For truly urgent time-critical issue that is not appropriate to wait until the next working day, then please contact us by telephone or direct message and check if it's an emergency. Otherwise, please compose your email and just schedule it to send during working hours. This policy demonstrates our concern for our people and our productivity. If we all respect each other's off-hours, we can come back to work refreshed and invigorated. We appreciate your understanding and cooperation in helping us to successfully make this change. Best, ## [Your Name]
ReHumanizeRank #9 this cycle
0/7 detectors passed
GPTZero
0.00caught
Originality.ai
0.05caught
Copyleaks
0.00caught
Pangram
0.00caught
ZeroGPT
0.07caught
QuillBot
0.00caught
Grammarly
0.43caught
Median
0.00
Meaning
94.8
Readability
87.0
Words
0.90× 188 → 169
Show output (169 words)
Subject: New Rule: No Internal Emails After 6 PM Hi Team, We're putting a new guideline in place to help everyone have a better work-life balance and protect your personal time. Starting now, we won't be sending internal emails between 6 PM and 8 AM on weekdays, or at any time on weekends. The idea is to create a clearer line between work and home life so everyone can switch off and rest properly. We know that sometimes urgent things come up. If there's something really critical that can't wait until the next day, please use the phone or a direct message. Just make sure it’s a genuine emergency. For everything else, just write the email and schedule it to go out during work hours. This policy shows we care about your well-being and want you to be productive. When we respect each other's time outside of work, we can all come back more refreshed and focused. Thanks for understanding and helping to make this work. Best, [Your Name]
Undetectable AIRank #10 this cycle
0/7 detectors passed
GPTZero
0.00caught
Originality.ai
0.04caught
Copyleaks
0.00caught
Pangram
0.00caught
ZeroGPT
0.45caught
QuillBot
0.00caught
Grammarly
0.00caught
Median
0.00
Meaning
96.3
Readability
72.0
Words
1.52× 188 → 286
Show output (286 words)
Subject: New Communication Guideline: No Internal Emails After 6 PM Hi Team, We're introducing a new rule to help people have a better balance between work and life. From now on, we won't be sending internal emails after 6 PM. This means you won't get work emails in the evening, so you can focus on your personal time. The goal is to make sure people have time to relax and take care of themselves outside of work hours. We should try not to send work emails to our colleagues, team members, or bosses outside of work hours, like between 6:00 PM and 8:00 AM on weekdays, or on weekends. The idea is to have a better separation between our work and personal life, so we can all really unplug and refresh. This way, everyone can have some time to themselves, without thinking about work, and come back to the office feeling more energized and focused. If something really urgent comes up, we get it. But before you send an email outside of work hours, think about whether it's really an emergency. If it's something that can't wait, try giving us a call or sending a direct message instead. Otherwise, just write your email and set it to send during the day when we're actually working. That way, we can get back to you when we're supposed to be online. We care about our employees' well-being and want them to be productive. When we respect each other's free time, we can come back to work feeling refreshed and more focused on our jobs. This helps everyone do their best work. We appreciate your support and flexibility in helping to make this transition a success. Best, [Your Name]

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