AI Humanizer Benchmark

CleverHumanizer

AI humanizer · cleverhumanizer.ai

In the October 2026 cycle, CleverHumanizer placed #8 of 11 with an overall score of 68.06/100. AI Humanizer Benchmark tests CleverHumanizer 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.

68.06/100
overall score
85.9%
bypass rate
33/33
tests completed
1.22×
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.

Originality.ai
93.8
Grammarly
88.2
Winston AI
85.2
GPTZero
78.3
ZeroGPT
78.1
QuillBot
76.9
Copyleaks
69.7

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
65.5/100
#10 of 11 · field avg 70.6
Readability
76.8/100
#6 of 11 · field avg 75.5
Consistency
77.3/100
#10 of 11 · field avg 89.6

Penalties

  • Meaning drift × 3−3.0
  • Length inflation × 6−6.0
  • Total−9.0 pts
Meaning drift · 3 testsShow tests

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

  • Argumentative essay Academic essay
    Similarity 0.837 < 0.85
    Show input and output
    Input · 232 words
    The notion that community libraries are obsolete in the digital era is a shortsighted one, failing to recognize their evolving and indispensable role. While digital resources offer unparalleled access to information, libraries are transforming into vital community hubs, bridging the digital divide and fostering intellectual growth in ways that technology alone cannot. Far from being mere repositories of physical books, modern libraries are crucial access points for the digitally disadvantaged. They provide free internet, computer access, and crucial digital literacy training, ensuring equitable participation in an increasingly online world. Without libraries, countless individuals would be cut off from essential services, employment opportunities, and educational resources. Moreover, libraries cultivate a sense of community and provide essential physical spaces that digital platforms cannot replicate. They host workshops, book clubs, and cultural events, fostering social interaction and intellectual discourse. In an age often characterized by digital isolation, libraries offer a tangible place for connection, learning, and shared experience. They curate reliable information, offer expert guidance, and create environments conducive to focused study, contrasting with the often overwhelming and unverified information found online. Therefore, community libraries are not relics; they are dynamic institutions adapting to the digital age. They are essential for digital inclusion, community building, and providing a trusted, curated space for knowledge and connection that complements, rather than competes with, the digital landscape. Their continued support is paramount for a well-informed and connected society.
    Output · 294 words
    I don’t see why people are saying that community libraries are obsolete in the age of digital information. I believe this because they are becoming crucial to the community. They are crucial to the community because they have something for everyone from books to online resources and they are becoming a place for many people to get together. Libraries are a perfect place to access online information for those who do not have access to it at home. Without community libraries, many people would not have access to online information. Some people do not have access to online information at work or school so community libraries give them a place to go so they can use the internet and learn how to use it correctly. Community libraries provide this so everybody in the community is on the same page with technology. Community libraries also bring the community together and give them a place to sit and talk about things other than technology. Technology is everywhere and it is hard to escape it, but community libraries give people a place to sit down and learn something other than technology. The community can meet there and talk about what they have been learning. Community libraries are places where people with similar interests get together. Online, people do not always know if the information that they are receiving is correct, but in a library, you can find credible information and someone there to help you find it. In the end, I believe that community libraries are not obsolete because they are crucial to the community. Community libraries give information to everyone including online information and they bring the community together. Community libraries are more than just books and are the place to be for information and community.
    Detector scores for this run
  • Lit review Academic essay
    Similarity 0.830 < 0.85
    Show input and output
    Input · 256 words
    Rent stabilization programs, designed to mitigate housing affordability crises and protect tenants from displacement, represent a contentious area of urban policy with a complex array of economic and social trade-offs. The foundational rationale for such interventions rests on the premise that unregulated housing markets can fail to provide adequate, affordable housing, particularly for low-income households, leading to exploitative rent increases and reduced housing security. However, the implementation of rent stabilization is rarely without consequence, generating vigorous debate among policymakers, economists, and housing advocates regarding its efficacy and long-term impacts. This literature review aims to explore the multifaceted trade-offs inherent in rent stabilization programs, examining both the intended benefits and the often-unintended drawbacks. A significant body of research champions rent stabilization as a vital tool for tenant protection, preventing speculative rent hikes and fostering community stability by reducing involuntary moves. Proponents argue that by capping rent increases, these policies enhance housing affordability, especially in rapidly gentrifying areas, and contribute to a more equitable distribution of housing resources. Conversely, a substantial critique contends that rent stabilization distorts market signals, disincentivizes new housing construction and maintenance, and can paradoxically exacerbate housing shortages and deteriorate housing quality over time. This review will delve into these competing perspectives, synthesizing empirical evidence on how rent stabilization impacts rental prices, housing supply, property values, landlord behavior, and tenant welfare. By systematically analyzing the literature, we seek to provide a nuanced understanding of the economic and social compromises that characterize rent stabilization, highlighting areas of consensus and continued divergence in academic and policy discussions.
    Output · 226 words
    The topic of rent stabilization is complicated and rife with contention, as it concerns the life and personal circumstances of every citizen and is directly related to one of the most substantial parts of the economy. Simply stated, the goal of rent stabilization is to ensure that the availability of housing will be sufficient to meet demand and prevent any rent hikes that could drive lower-class citizens into poverty. Nevertheless, rent stabilization is rarely a one-sided affair and is almost always subjected to heated debate between proponents and opponents. This paper will provide a discussion of the trade-offs of implementing rent stabilization by analyzing both sides’ arguments. As mentioned above, the topic of rent stabilization is highly controversial. The primary purpose of rent stabilization is to ensure that tenants cannot be evicted or have their rent increased at the whim of the landlords. In other words, rent control aims to ensure affordability and stability for the tenants while also ensuring that landlords are not taking advantage of the desperate demand for housing. However, the opponents of rent stabilization argue that it will hurt the housing market more than help it, causing the quality of service to decrease and the supply to drop in favor of demand. This paper will analyze the validity of both arguments and provide a summary of evidence and conclusions on the topic.
    Detector scores for this run
  • Landing copy Marketing copy
    Similarity 0.822 < 0.85
    Show input and output
    Input · 279 words
    Build a savings habit that actually sticks. Meet your personal savings companion: a simple, motivating SaaS platform designed to help you save consistently—without spreadsheets, guilt, or complicated budgeting systems. Set a goal, choose a schedule, and let the platform turn your intention into a repeatable routine. Whether you’re building an emergency fund, planning a vacation, paying for a wedding, or finally creating financial breathing room, you’ll always know what to save next and why it matters. Create flexible saving plans around your real life. Start small with weekly deposits, increase contributions when your income grows, or pause when unexpected expenses come up. Smart reminders keep your goal visible, while progress tracking turns every contribution into proof that you’re moving forward. See your savings momentum at a glance. Clear dashboards show your current balance, upcoming contributions, goal timelines, and milestones worth celebrating. Instead of wondering where your money went, you can watch your future take shape—one consistent action at a time. Need extra accountability? Personalized nudges help you stay on track before a missed contribution becomes a broken habit. Gentle prompts, streak tracking, and milestone celebrations make saving feel rewarding rather than restrictive. There’s no need to overhaul your entire financial life. Start with one goal. One amount. One scheduled habit. Our platform helps you build confidence through consistency, so saving becomes something you do automatically—not something you keep meaning to do. Your goals deserve more than good intentions. Give them a system. Start building your savings habit today. Set up your first goal in minutes, create a schedule that works for you, and make steady progress toward the life you want. Small deposits add up. Consistent habits change everything.
    Output · 352 words
    Build a savings habit that lasts with our motivating SaaS application Aim to succeed in forming your own money-saving habit. Do not waste your time and effort on trying to achieve your savings goals. Our motivating SaaS tool will introduce you to the easiest way to set up and adhere to a personalized savings plan. No matter if you want to save money for a rainy day, go on a trip, get married, or just feel more financially confident, we will help you reach your goal. Create a savings plan that fits your schedule and financial situation. Think about your target sum and set a regular contribution to your savings account. Adjust your plan depending on changes in your income or other expenses. You will always know the exact amount of money to save and when to do it. Set flexible rules for automatic transfers to your savings account and save money without even thinking about it. Keep track of all your transactions and see your savings grow. Our simple and intuitive dashboard will help you monitor your progress and remind you of the approaching deadline to make a deposit. You will be able to see your current balance, the target date, and the amount of money you need to save for your plan to stay on track. Instead of looking at your disorganized finances and various expenses, watch your savings increase with every step you make with our app. Customize your experience to stay motivated and meet your financial goals. You will receive the necessary prompts to make a deposit before it is too late. Set up alerts for streaks and milestones, and reward yourself for following your savings plan to keep yourself motivated and positive. Our SaaS tool will help you build a financial habit that you will look forward to with ease and confidence. You do not need to change how you handle your finances right away. Just set your savings goals and start adhering to your schedule without putting your entire life in suspense. Let us help you form a habit of saving money with our motivating assistant.
    Detector scores for this run
Length inflation · 6 testsShow tests

The output was more than 1.4× the input's word count. Extra words were added instead of the text being rewritten.

  • How-to blog Blog post
    284 → 470 words · 1.65× > 1.4×
    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 · 470 words
    How to Ask for a Promotion After a Big Project Ships Seeking Timing Advice It is advisable to wait for two to four weeks after the launch of the project before requesting a meeting with your supervisor. This will give you enough time to see how things go and for the stakeholders to fully grasp the results of the undertaking. Avoid asking for the meeting immediately after the project is completed. Preparing Evidence In addition, it is necessary to collect all the evidence regarding the results attained by the project, including revenues, costs, and other relevant figures. It is also advisable to remember all the excellent decisions you have delivered during the work on the project and note any mentoring experiences you have. All of this is essential to prepare a compelling case for your promotion. Preparing a Brief Statement Furthermore, it is critical to prepare a brief statement outlining what work you have undertaken beyond your job description, what opportunities you had while leading or participating in the project, and how these experiences relate to the level of performance required for the new position. This way, you will demonstrate to the management that you have relevant skills and competencies already and only need an opportunity to prove your abilities in a higher-level position. Arranging a Meeting The next step is to arrange a meeting with your manager. It is unwise to interrupt someone at work, so it is best to send an e-mail requesting a meeting. In the e-mail, state your intentions clearly: ask to discuss your opportunities for career growth, and advancement. Express your gratitude for having the chance to participate in the project and demonstrate your competencies. It is essential to ask for a thirty-minute meeting to discuss your options. Having the Conversation Once the meeting has started, it is advisable to acknowledge the opportunities first before proceeding to the main point of the meeting. You should be ready to provide evidence of your achievements and note that you believe the time has come for you to advance to the next level. Thus, you may ask for a recommendation for the new position directly: ‘’Considering the abovementioned opportunities, I believe it is time for me to advance my career to the next level and achieve more significant goals. In my opinion, the new position will allow me to do that while contributing more to the company’s success. Do you believe it is a good time for a promotion?’’ Taking Action If the conversation went well, and the manager has agreed to consider your request, it is advisable to set up a follow-up meeting in ninety days to review the progress and possibly promote you. In case of refusal, it is advisable to arrange a meeting to see what else you will need to do to get promoted.
    Detector scores for this run
  • Product description Marketing copy
    211 → 338 words · 1.60× > 1.4×
    Show input and output
    Input · 211 words
    Enjoy your favorite drinks wherever the day takes you with this double-walled ceramic travel mug. Crafted for comfort, style, and everyday convenience, it combines the rich feel of ceramic with reliable insulation to help keep coffee, tea, cocoa, or other beverages warm for longer. The double-wall design reduces heat transfer, keeping the exterior comfortable to hold while helping protect your hands from hot contents. Its smooth ceramic interior preserves the natural flavor of your drink and resists lingering odors, while the durable construction stands up to daily use at home, in the office, or on the go. A secure, fitted lid helps minimize spills during commutes and busy mornings, and the practical shape slips easily into most cup holders and travel bags. The generous capacity gives you enough room for a satisfying serving without making the mug bulky or difficult to carry. With its clean silhouette and versatile design, this travel mug adds a touch of understated elegance to your daily routine. Whether you are heading to work, relaxing outdoors, or running errands, it is a dependable companion for every sip. Hand wash recommended to preserve its finish and performance. Available in a range of modern colors to suit your personal style and make a thoughtful gift for any beverage lover.
    Output · 338 words
    Enjoy your favorite beverage anywhere you go with this double-walled ceramic mug. This practical yet stylish companion will keep your drinks warm for a longer time and help you feel comfortable while being on the go. The mug’s walls are made of ceramic, which helps to retain heat, and its double-wall design helps to keep the outside surface cool, so your hand will not be burned while holding the cup. In addition, the mug’s inner walls are made of food-grade ceramic that will not affect the taste of your favorite beverage. A nice feature of this mug is that it prevents absorbing unwanted tastes, so it will be perfect for people who love to drink different beverages, including coffee, tea, or cocoa. The mug is also suitable for everyday use due to its high quality and a comfortable size that allows a user to take it anywhere without worrying about the safety of their drinks. With its slim design, the mug can fit in a car’s cup holder or a bag, and its wide opening allows a user to control the portion of a brewed beverage. A well-fitting lid reduces spills when the mug is moved from one place to another, making it perfect for commuting and busy people who do not have much time to prepare their morning coffee. This travel mug’s elegant simplicity offers a sophisticated look and makes it an ideal accessory to go with any outfit. In addition, it will quickly become a favorite among your friends, family, or coworkers, as it is perfect for any occasion. It can be used to make coffee, tea, or hot chocolate at home or in the office or to prepare a comforting cup of tea while being on vacation. What is more, the mug is dishwasher safe, making it easy to clean after use and suitable for people with a busy schedule. This mug comes in several colors, so it will be a perfect addition to your morning routine and an ideal present for your loved ones.
    Detector scores for this run
  • Personal statement Application essay
    282 → 419 words · 1.49× > 1.4×
    Show input and output
    Input · 282 words
    My interest in biostatistics comes from a desire to understand how data can improve human health. Medical research generates enormous amounts of information, but meaningful progress depends on the ability to interpret that information accurately, identify reliable patterns, and translate findings into better decisions. Biostatistics offers the opportunity to work at this intersection of mathematics, science, and public health. I am particularly drawn to the way biostatistics can address complex questions that affect individuals and communities. Whether evaluating the effectiveness of a treatment, identifying risk factors for disease, or assessing health disparities, biostatisticians provide the methods needed to distinguish meaningful evidence from chance. I find this combination of analytical rigor and real-world impact deeply motivating. The possibility that careful statistical work can influence clinical practice, health policy, and prevention strategies makes the field especially rewarding. Studying biostatistics would allow me to strengthen my skills in statistical modeling, study design, data analysis, and scientific communication. I am eager to learn how to work with diverse and imperfect datasets while considering issues such as bias, uncertainty, and ethical research. I also value the collaborative nature of the discipline. Biostatisticians work alongside clinicians, epidemiologists, laboratory scientists, and policymakers, contributing a quantitative perspective while learning from other areas of expertise. Ultimately, I want to develop the knowledge and judgment necessary to conduct thoughtful, responsible analysis that contributes to better health outcomes. I am excited by the prospect of using statistical reasoning not simply to describe what has happened, but to help determine what can be done next. Graduate study in biostatistics would provide the rigorous training and collaborative environment I need to pursue this goal and make a meaningful contribution to biomedical and public health research.
    Output · 419 words
    I have an interest in biomedical statistics since I believe that understanding statistics will help in promoting the general health of the population. There is a need to analyze the deluge of data resulting from medical studies and clinical trials carried out to discover cures for various illnesses, determine the efficacy of drugs, and find out the leading causes of death and disease in order to obtain verifiable facts and figures for informed decision-making. Working in this field will help me achieve my dream of contributing in a meaningful way to the health and wellbeing of the population. Biostatistics is interesting to me because it can provide answers to most of the questions that are commonly asked in relation to the health status of a population. I want to be able to know the effect of a drug on the body. Having the necessary skills and techniques in statistics will enable me to make a difference in the analysis of clinical data. I am interested in helping to find out leads on disease control and health promotion measures. Being involved in such insightful work makes me excited, and I want to be part of it. It will be fulfilling to contribute towards ways that drugs can be used more effectively and to help determine the most effective prevention campaigns. By pursuing my studies in this field, I stand to gain more knowledge on statistics, including study design, data analysis, scientific and technical writing, and graphics. I will acquire the necessary skills to be able to perform my work to a high standard. Apart from being a qualified and professional biostatistician with the appropriate tools for analytical studies, I will also be able to collaborate effectively with other professionals in related disciplines. Such areas include medicine, epidemiology, clinical, laboratory, social, and behavioral sciences, among others. These links will enhance the production of quality research data needed to promote health. My main aim is to gain the requisite skills and insights needed to promote health and prevent diseases. I want to be in a position to contribute towards effective health planning and delivery of health services and to participate in research endeavors aimed at improving the general wellbeing. My interest in analyzing data to come up with conclusions that can help in decision-making in the health sector is insatiable. Therefore, a graduate level of study in the field of biostatistics will be of great importance to me since it will equip me with the needed skills to conduct such projects successfully.
    Detector scores for this run
  • Product description Marketing copy
    199 → 292 words · 1.47× > 1.4×
    Show input and output
    Input · 199 words
    Stay warm without sacrificing performance. These merino wool running gloves are engineered for cold-weather athletes who refuse to let winter slow them down. Crafted from premium merino fibers, they deliver exceptional natural warmth while remaining breathable, so your hands stay comfortable whether you're pushing through a quick 5K or logging long miles in sub-freezing temperatures. Merino wool's moisture-wicking properties keep sweat from lingering on your skin, preventing that clammy, cold feeling that cheap synthetic gloves often cause. The fabric also resists odor naturally, meaning fewer washes and fresher gear run after run. A snug, ergonomic fit hugs your hands without restricting movement, while flatlock seams eliminate chafing during repetitive motion. Touchscreen-compatible fingertips let you check your pace, skip a song, or answer a call without exposing your skin to biting wind. Reflective accents enhance visibility during early morning or evening runs, adding a layer of safety to your winter training routine. Lightweight yet insulating, these gloves pack down easily, making them perfect for layering or tossing in a jacket pocket when temperatures rise. Durable, sustainable, and naturally antimicrobial, they're built to withstand season after season of serious training. Gear up and conquer winter miles in comfort, confidence, and warmth.
    Output · 292 words
    Stay warm while remaining active. Made of high quality merino wool fibers, these running gloves keep hands warm and comfortable during cold winter weather. They keep fingers flexible so users can maintain their athletic performance. These winter running gloves are made of natural wool fibers. The breathability of the material keeps hands warm without causing sweaty palms or uncomfortable cold spots. The moisture wicking feature keeps the hands dry while the soft fibers lock in the body heat. Unlike other cheaper alternatives, the merino wool used in this product is odor resistant saving the user from having to wash the gloves after every use. The ergonomic design gives a comfortable fit that also allows maximum flexibility of the hands and fingers. Flatlock seams reduce skin irritation. The touch screen compatible fingertips allow the user to access their electronic devices without compromising on their safety. The reflective elements on the surface add an element of safety when running on the roads during dark hours. The winter running gloves are light weighted and packable. This makes them highly convenient for use by serious and recreational runners who want to stay active during the cold winter months. The gloves can also be stored in a jacket pocket or packed away when a runner needs to shed some layers due to rising temperatures. The natural material is durable and highly suitable for cold weather activities. The gloves are odor resistant and can resist bad odors caused by sweat. This product is a perfect combination of comfort, convenience and durability. It is made of high quality natural fibers that can keep the user warm throughout his running or winter sports activities. The ergonomic design and touch screen feature allows full use of the phone by the runner.
    Detector scores for this run
  • How-to blog Blog post
    277 → 467 words · 1.69× > 1.4×
    Show input and output
    Input · 277 words
    Preparing for a system-design interview requires more than memorizing architectures. Focus on developing a repeatable process for turning ambiguous requirements into practical, scalable designs. Start by reviewing core concepts: scalability, availability, consistency, latency, partitioning, replication, caching, load balancing, queues, databases, and failure recovery. Understand the trade-offs rather than memorizing definitions. Be able to explain when you would choose SQL versus NoSQL, synchronous versus asynchronous communication, and strong versus eventual consistency. Practice common design problems, such as URL shorteners, messaging systems, social feeds, file storage, ride-sharing platforms, and video services. For each problem, work through the same framework: 1. Clarify requirements. Identify key features, users, traffic patterns, data size, latency expectations, and availability goals. 2. Estimate capacity. Make rough calculations for requests per second, storage, bandwidth, and growth. State assumptions clearly. 3. Define the API and data model. Keep them simple and aligned with the main use cases. 4. Draw the high-level architecture. Explain how clients, services, databases, caches, queues, and external systems interact. 5. Explore bottlenecks and failures. Discuss replication, sharding, retries, timeouts, backpressure, monitoring, and disaster recovery. 6. Revisit trade-offs. Explain why your choices satisfy the requirements and what you would change at greater scale. During practice, speak aloud and use a timer. Interviewers evaluate communication and decision-making as much as technical knowledge. Avoid diving into implementation details before establishing the overall design, and do not present a single solution as universally correct. Review real-world engineering case studies and study the architecture of well-known systems. Before the interview, prepare a concise framework, practice estimation, and become comfortable asking clarifying questions. During the interview, collaborate actively, acknowledge uncertainty, and adjust your design when new constraints are introduced.
    Output · 467 words
    Preparing for a system-design interview means drilling for months, memorizing scores of architectural patterns, scalability principles or solutions to common problems. Do not try to cram for the interview. Instead, develop a repeatable process that will allow you to approach a vague problem statement and turn it into a working solution. Review the basic concepts such as scalability, availability, consistency, latency, partitioning, replication, caching, load balancing, queues, databases, and recovery. Make sure that you know the tradeoffs between the alternatives (SQL vs NoSQL, synchronous/asynchronous, strong/eventual consistency) and can explain why one solution is better than the other in different scenarios. Then, practice solving common problems. For each problem, try to describe the ideal system that would handle the needs of its users and customers. Some common problems include URL shortener, chat, social media feed, file storage, ride sharing, video service, etc. Try to describe a simple example for all of these problems. Here is a sample problem: Describe a system that allows users to shorten URLs and then share them. First, outline the requirements, capacity, and constraints. What are the most important features of the system? How many users and requests per second do you expect the system to handle? What is the expected latency and SLA? Next, describe the system’s architecture. Make sure to keep it simple and stick to the most important aspects of the problem. Next, go over the details of the implementation and identify potential bottlenecks. Think about how you will scale the system, implement replication and sharding, if needed, as well as fault tolerance, retries, timeouts, backpressure, caching, and monitoring. Make sure to revisit the requirements and explain which constraints you have addressed. Also, highlight the tradeoffs that you have made and what would you change in the system if you needed to support more users. When practicing in front of a mirror or with a friend, speak loud and do not forget to ask clarifying questions. The interviewer wants to know your thought process, so avoid getting stuck in any part of the solution. Also, when describing the components and API, make sure to stay high-level and show that you understand the big picture and the interactions between various parts of the system. Avoid premature optimization and solution selection. Do not try to describe a fully working system with every edge case in mind. Instead, show that you understand the problem and can select the optimal solution based on the requirements. In preparation for the interview, study the articles about system design and the architecture of products that you will be discussing. Remember to document your thoughts and practice the verbal description of the system’s architecture. During the interview, always ask clarifying questions and make sure to admit when you do not know something instead of pretending to be an expert.
    Detector scores for this run
  • Business email Business email
    229 → 324 words · 1.41× > 1.4×
    Show input and output
    Input · 229 words
    Subject: Exciting New Commuter Benefit Program Hi Team, I'm thrilled to announce the launch of our new commuter benefit program, effective immediately. This initiative reflects our commitment to supporting your well-being and reducing your out-of-pocket transportation costs. **What's Included:** We now offer pre-tax commuter benefits for: - Public transit passes (bus, train, subway) - Bike-sharing memberships - Parking for bicycles at our facilities **How It Works:** Eligible employees can set aside pre-tax dollars for these commuting expenses, reducing your taxable income and saving approximately 25-30% on transportation costs. There's a monthly contribution limit set by federal regulations, which will be outlined in the enrollment materials. **How to Enroll:** Details and enrollment instructions have been sent to your email. You can sign up through our benefits portal. Open enrollment begins tomorrow and runs for two weeks. Please complete your election by [specific date]. **Questions?** Our HR team will host two information sessions this week—details are in your inbox. You can also reach out directly at [HR email] with any questions. **Why This Matters:** Whether you're using public transit, cycling, or a combination, this benefit makes commuting more affordable while supporting our sustainability goals. We're investing in programs that enhance your quality of life. Thank you for your continued dedication to our organization. We look forward to seeing many of you take advantage of this new benefit. Best regards, [Your Name]
    Output · 324 words
    Subject: Exciting New Commuter Benefit Program Hi Team, As you know, we've launched a new commuter benefit program this week. We are excited to be able to offer this benefit and reduce your out-of-pocket commuting expenses. The new program offers pre-tax commuter benefits for: Public transportation (bus, train, subway) Bike sharing memberships Parking for bikes in our facilities We understand that many of you currently use some form of public transportation to get to work and are hoping that this new benefit will encourage you to continue to do so. How it works: Employees who participate in the program can set aside money from their paycheck for eligible commuting expenses on a pre-tax basis. The amount of money you can set aside is limited by federal regulations and will be specified in the enrollment materials. By putting money into the account on a pre-tax basis, you'll save 25-30% on your commuting costs. How to enroll: Instructions for enrollment have been sent to your email. You can enroll in the program through the benefits portal. The open enrollment period is tomorrow and will close next week. Please make sure to complete your enrollment by [specific date]. If you have any questions about the new commuter benefit program, please feel free to contact our HR team. We've scheduled two informational sessions this week for you to learn more about the program. Details will be sent to your email. We hope that you'll take advantage of this new benefit and consider using some form of public transportation to get to work. Not only will it save you money, but it will also help reduce traffic congestion and carbon emissions. We're committed to making our company a leader in sustainability and this new program is a great step towards that goal. Thank you for your continued support of our company. We look forward to seeing many of you take advantage of this new benefit. Best regards, [Your Name]
    Detector scores for this run

These points come off the overall score. How penalties work

Evidence: every CleverHumanizer run

Each row is one October 2026 prompt that CleverHumanizer 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)

15 of 33 outputs passed all 7 detectors. The other 18 got an AI verdict from at least one detector or are missing a score.

#PromptInput modelGPTZeroWinston AIOriginality.aiZeroGPTGrammarlyQuillBotCopyleaksMedian
01Argumentative essayAcademic essayGemini 2.5 Flash1.00
02Lit reviewAcademic essayClaude Sonnet 51.00
03Cover letterApplication essayGPT-5.6 Luna0.00
04Personal statementApplication essayGemini 3.5 Flash1.00
05How-to blogBlog postClaude Haiku 4.51.00
06Listicle blogBlog postGPT-5.6 Terra1.00
07Business emailBusiness emailGemini 2.5 Flash0.19
08Landing copyMarketing copyClaude Sonnet 50.93
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 Terra1.00
13Lit reviewAcademic essayGemini 2.5 Flash1.00
14Cover letterApplication essayClaude Sonnet 50.93
15Personal statementApplication essayGPT-5.6 Luna1.00
16How-to blogBlog postGemini 3.5 Flash1.00
17Listicle blogBlog postClaude Haiku 4.51.00
18Business emailBusiness emailGPT-5.6 Terra0.42
19Landing copyMarketing copyGemini 2.5 Flash1.00
20Product descriptionMarketing copyClaude Sonnet 51.00
21Discussion postDiscussion boardGPT-5.6 Luna1.00
22News articleNews articleGemini 3.5 Flash1.00
23Argumentative essayAcademic essayClaude Haiku 4.51.00
24Lit reviewAcademic essayGPT-5.6 Terra1.00
25Cover letterApplication essayGemini 2.5 Flash0.07
26Personal statementApplication essayClaude Sonnet 50.96
27How-to blogBlog postGPT-5.6 Luna0.94
28Listicle blogBlog postGemini 3.5 Flash1.00
29Business emailBusiness emailClaude Haiku 4.50.48
30Landing copyMarketing copyGPT-5.6 Terra0.99
31Product descriptionMarketing copyGemini 2.5 Flash0.43
32Discussion postDiscussion boardClaude Sonnet 51.00
33News articleNews articleGPT-5.6 Luna1.00
Detector rate (mean human-likelihood)78.385.293.878.188.276.969.7hardest
Runs passed26/3328/3331/3328/3330/3325/3323/33

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
Free
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.

CleverHumanizer
33 rows · .jsonl

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