10 Best AI Plagiarism Checkers and AI Content Detectors

The future of education is here. Nobody will be surprised to hear the name “ChatGPT” in school corridors, or the words “AI-generated content” do not shock anyone. AI writers have been in full swing for just a year but managed to leave a trace in the academic world. 

While students were in awe when welcoming AI-powered sources into their studying routine, educators were in fear that the system would crack. The first party thought that they found a savior, and the latter were doomed. The gut feeling of both did not do them wrong. Indeed, the rollout of AI writers caused a stir for a while. From LA to Tokyo, Stockholm to Johannesburg, in every blog and newspaper, there was not a single person who would not have mentioned the benefits of AI writers. 

Yet any gripping story that takes off that speedily must have an enticing turn of events -- AI detectors. These are the "academic superheroes" that are meant to secure ethics and protect authenticity. Why did these tools need to see the broad daylight? Simply because like regular cheating, AI dishonesty is elusive but fully present. Regardless of whether one is a teacher, student, or professor, everyone must have a chance to protect integrity. 

AcademicHelp, your trusted buddy, accepted the challenge and our experts tried the most talked about and used AI detectors to find out how accurate and effective they are. After thorough testing and analysis, we've compiled our findings. 

Here is a list of the top 5 free & paid AI plagiarism checkers  to use:

1. AcademicHelp AI Detector - Best AI content detector

2. TurnItIn - Best product

3. CopyLeaks - Best value for money

4. Winston AI - The most flexible pricing system

5. Passed AI - Best overall experience

How To Find the Best AI Text Detector

The AcademicHelp team are true detectives. We find evidence, test out theories, gather information, and get the scoop from the Internet and from real students’ reviews. But most importantly, before we voice our final words, we check every single possibility. 

This time was no different. Finding the best AI detector was not easy. Our mystery shopping experiment helped the experts to track every finding and essential detail. Our team prepared three different documents for this purpose: 

📝 one written by a human on a chosen subject;

🤖 another entirely composed by GPT-4;

🔀 the third one is a mix, with half of its part rephrased by AI.

While assessing the accuracy of the detectors, the AcademicHelp experts also looked at two other important factors: how much value these tools offer for the price and how user-friendly they are. We evaluated how cost-effective these tools are and how easy and convenient they are to use.

Our findings are meant to direct students and educators to the most reliable tools for upholding the integrity of their academic work.

Best AI writing Detector

Is finding the perfect platform a tough task? Absolutely. For students, the best tool needs to be both accurate and affordable. After testing numerous platforms, we've discovered one that stands out in every category.

AcademicHelp AI Detector rises as the clear winner, nailing both essential criteria. In our tests, it showed impressive precision in detecting AI content in three different essays. What's more, it wins extra points for being budget-friendly, allowing students to scan their papers free of charge.

Top 10 AI Content Detector Alternatives

According to our Mystery Shopping Reviews (2023), we can recommend the following legit AI-detecting services:

AcademicHelp AI Detector

Need to check if your essay is clear of AI-generated material? The AcademicHelp AI Detector is your go-to solution.

Key advantages:

🎯 Efficient identification of AI-generated content

🖥️ Quick results

We at AcademicHelp are dedicated to assisting students in their academic pursuits. We're excited to offer this cutting-edge tool to protect your written assignments. Our platform efficiently identifies content produced by ChatGPT, GPT-4, Claude, and Bard. Just upload your essay as a PDF or DOC file, or paste the text directly, and quickly get back precise results. For peace of mind in your academic work, let the AcademicHelp AI Detector be your trusted partner in ensuring originality and authenticity.

TurnItIn

Everyone in the academic sphere is familiar with Turnitin. Is it more than just a plagiarism checker? Absolutely. It's equipped with a powerful AI content detector, making it a popular choice among universities worldwide. Over 15,000 institutions trust Turnitin for its role in curbing academic dishonesty and plagiarism in student submissions.

Key advantages:

🔍 Accurate AI plagiarism detection

🏫 Trusted by educational institutions

Interestingly, Turnitin isn't open for individual subscriptions; it's mainly offered through educational institutions. If you're a student, you might want to check if your college provides access to this service.

Turnitin is designed with a straightforward and functional interface, prioritizing ease of use over elaborate designs. Users, through their college accounts, can upload single or multiple documents for checking. The results are displayed as percentages, indicating either AI involvement or plagiarism, and detailed reports are available for further insight.

In accuracy, Turnitin excels. It can tell apart content written by humans from that fully generated by AI. Even with paraphrased text, it efficiently detects the absence of AI. This confirms Turnitin's reputation as a reliable AI content detector, widely recognized in the academic world for upholding integrity in education.

CopyLeaks

Wondering how to make your writing unique? CopyLeaks is the answer. This AI plagiarism checker is designed to enhance the originality of your work, whether you're an academic, a business, or a content creator.

Key advantages:

🎓 Recognized in education

🆓 Free trial available

CopyLeaks offers both a free basic option and a more comprehensive paid version. The free version doesn't require registration, but you can sign up via third-party services like Google or Facebook. The paid version, providing more features and better file management, starts with a free trial allowing 10 pages (or 2500 words) for checks. After the trial, it's $10.99 monthly, with the price varying based on the volume of content checked.

The interface of CopyLeaks is visually appealing and user-friendly. It supports multiple languages and lets users analyze a range of formats, including text, URLs, and code files.

In summary, CopyLeaks stands out for its ease of use and versatility. It effectively detects both human-written and AI-generated or paraphrased content. Its wide range of capabilities places it as a top choice among content-checking tools.

Winston AI

Need to tell apart human writing from AI-generated text with a touch of tech-savvy? Winston AI steps up to the challenge. This tool is a boon for educators, content creators, and web publishers, adept at spotting plagiarism and listing duplicate content, plus it offers the handy feature of printable reports for easy record-keeping.

Key advantages:

🌐 Designed to be used in various domains

💡 Fits different needs and budgets

Signing up for Winston AI is a breeze, and its pricing plans are flexible. So, right off the bat, Winston AI appeals to users looking for ease of access and a range of options to suit various needs and budgets.

The website of Winston AI is both attractive and user-friendly. Its interface is straightforward, promoting a quick and efficient scanning process. While it currently focuses on English and French, with more languages in the pipeline, certain paid plans also include the option of printable reports for easy result sharing and archiving.

The verdict is: Winston AI excels in distinguishing human-written content from AI-generated text. Ideal for educators and content creators, it efficiently detects plagiarism and lists duplicates, with the bonus of printable reports

Passed AI 

Curious about a tool that can sniff out AI-generated content? Meet PassedAI, a platform tailored for academics, businesses, and content creators, focused on boosting the originality of their work.

Key advantages:

💳 Offers various affordable subscriptions

🎁 Allows earning rewards and bonuses

Diving into pricing, PassedAI skips the freebie route but tempts with a 14-day trial. Signing up is a must, and Google sign-in is an option. For $9.99 a month, the Standard Plan grants unlimited scans and gifts you 200 monthly credits for AI and plagiarism checks. A neat perk is the chance to nab promo codes over time.

Navigating PassedAI is a breeze. It's user-friendly, quick, and multi-lingual, though it shines brightest with English content. All in all, PassedAI stands out as a well-rounded tool, offering an enjoyable browsing experience, straightforward results, and versatile detection capabilities.

Originality AI

Need a digital Sherlock Holmes for your content? Originality.AI might just be the answer. It's a top pick for content marketers and SEO experts, offering pinpoint accuracy in detecting Chat GPT and plagiarism. Let’s find out if it is tailored to academic needs. 

Key advantages:

🔗 Shareable results

⚡ Quick and easy to use

The first thing that the AcademicHelp team noticed is that, unlike some others, Originality AI skips the free trial, opting for a credit-purchase system – $20 gets you 2000 credits. Regular users can benefit from a loyalty program, though. Signing up is necessary to dive into its offerings.

The interface? Sleek, user-friendly, and designed for efficiency, ensuring a smooth operation. It's got a Chrome extension for convenience, but sorry, Microsoft Word users, you're out of luck here. Beyond these, it boasts a plagiarism checker and a website scanner, adding value to the user experience.

Originality AI is versatile, handling various formats like PDFs, Word docs, simple text, and URLs. It's particularly adept at spotting AI-generated content and does a solid job with paraphrased material. Despite some constraints, its broad functionality positions it as a formidable player in ensuring content authenticity.

Writer AI

Ever wondered if a clever AI is behind that text you're reading? The AcademicHelp team has scrutinized Writer AI, a tool that zeroes in on ChatGPT-generated content, and we’re ready to spill the beans.

Key advantages:

🔍 Great detection quality of an altered essay

💸 Discounts available for groups and teams

Dip your fast-typing fingers in with their free version or trial to get a feel for its features before diving into a subscription. Their pricing is as varied as it is flexible, catering to both solo users and teams, and they even offer a 20% discount to non-profits and educational institutions.

But it's not all smooth sailing. Writer AI sticks to analyzing simple text and URLs, leaving file uploads by the wayside. And if you’re looking for extra features like a browser extension or a Word plugin, you won't find them here. The website's minimalistic design doesn't necessarily mean it's a breeze to use, either. Plus, the 1500-character limit per entry could mean a lot of chopping and changing when analyzing larger documents.

When it came to testing, Writer AI nailed it with original and paraphrased content, but it seemed to trip up on detecting content that's 100% AI-generated. All things considered, Writer AI has strong points but still has some areas to brush up on, especially regarding user experience and the scope of its detection abilities.

Content at Scale

Intrigued by AI plagiarism checkers' knack for sniffing out originality in content? Buckle up because the AcademicHelp team put Content at Scale to the test, a tool famed for its advanced AI-driven language understanding, particularly aimed at SEO strategists and content creators, to see if it could handle the academic rigor.

Key advantages:

🆓 Free access

⚡ Quick detection

Content at Scale offers free access without demanding immediate payment or a trial commitment, making its cutting-edge technology accessible to all. That said, corporate clients might find more value in the paid plans, which unlock its full potential – something SEO agencies and businesses might want to consider.

Despite lacking MS Word support or a Chrome extension, the platform impresses with its sleek and efficient interface, ensuring a smooth user experience. Its focus remains on plain text analysis, though it doesn't cater to PDFs, Word documents, or URL checks.

Overall, Content at Scale shines in detecting paraphrased text and fares decently with human-written content, though it admits there's room to grow in pinpointing AI-generated material. Despite some limitations, its unique strengths make it a noteworthy player in the arena of content authenticity checks.

Writefull

Need a savvy AI essay detector sidekick for your academic writing? Writefull might just be the answer. It's not just about editing or paraphrasing; it also boasts a GPT Detector that swiftly tells if a text is AI-generated.

Key advantages:

📝 Integration with MS Word

💰 Inexpensive paid plans

Writefull keeps it simple: just copy and paste plain text for a quick check. But remember, it won’t work with PDFs, Word docs, URLs, or code.

When it comes to cost, Writefull’s AI detector plays it cool with a free version and several paid plans, including monthly to yearly options, plus possible discounts. No trial periods here, and registration is optional, but having an account helps manage your work.

The platform prides itself on a user-friendly interface, ensuring a smooth and speedy experience. However, it doesn’t churn out printable reports, and result clarity can be hit or miss. Overall, Writefull offers a handy, intuitive toolset. While it's great at identifying human-crafted content, it's still tuning its skills in spotting AI-generated and paraphrased work. Despite these gaps, Writefull remains a nifty ally in elevating academic writing.

GPTZero

Ever wondered if an AI detector can outsmart AI writers? GPT Zero, marketed as an educational tool, claims it can spot any AI-generated sentence. But how accurate is it really? AcademicHelp took a dive into this question.

Key advantages:

📂 Batch files upload

💵 Affordable paid packages

GPT Zero entices with a free version for up to 5,000 characters, though you'll need to register for the full suite of features. The sign-up is easy, with options for Google or Facebook accounts.

The platform stands out with its clean, intuitive interface, making it a breeze to use. It's feature-rich, allowing text entries or file uploads for multiple documents. For added convenience, GPT Zero offers the Origin Chrome extension and a MS Word plugin.

However, when it came to accuracy, things were a bit hit-and-miss. AI text was often mistaken for human writing, and original content was sometimes flagged as AI. Paraphrased text received similar treatment. Despite these hiccups, GPT Zero's innovative approach and meticulous design hint at a promising future, with room for improvement in result accuracy.

So, Which Detector Can Uncover AI-generated Content?

For educational institutions, integrity is key, and AI detectors are vital for this purpose. After carefully reviewing many tools, AcademicHelp's experts believe that AcademicHelp AI Detector is the top pick. It's not just free, but also easy to use, which makes it a great fit for academic needs. And who doesn't love a cost-effective solution that's as smart as the students it serves?

FAQ

What is the best free AI content detector?

The best AI content scanner is AcademicHelp AI Detector. It is free, fast, and accessible to every learner, making it the best tool for students. This service can accurately detect ChatGPT, GPT4, Claude & Bard generated information. The scanning itself takes a few seconds, and every user receives a detailed report at the end. Sounds like a great investment, money-wise. 

Do AI detectors work?

This is a highly debated question. There are two sides to the argument, so the AcademicHelp team decided to find the truth. Having tested more than 10 free and paid AI detectors. Our experts can claim that AI detectors do work. Some perform exceptionally well, while others show that they still have some ways to go in terms of improvement. From our list of 10 Best AI Plagiarism Checkers anyone can find a tool that matches their academic requirements. 

Are AI detectors flawed?

Sure, any AI detector can show false information. AI detectors may miss AI-generated text and mistakenly flag human writing as AI (a false positive). There are many real cases that prove that. On top of everything, there is a camp of educators who consider current AI detectors unreliable. The AcademicHelp team understands such concerns, though we do recommend checking any written piece through several AI checkers in order to minimize the risk of inaccuracies. By using multiple AI detectors, learners and educators can cross-verify results and increase the likelihood of correctly identifying AI-generated content. This approach helps ensure a more thorough and balanced teacher assessment, essential in maintaining the integrity and authenticity of written work.

How to bypass AI content Detector?

The best way to achieve excellent results during AI detection is by expressing thoughts in your own words. However, if this task seems challenging to you, consider using synonyms and antonyms to bypass AI content detectors. Simply swapping out specific words for their equivalents or opposites can help you evade detection while effectively communicating the same idea.

Are AI detection tools accurate?

Having conducted a mystery shopping experiment and tried many various AI essay detectors, the AcademicHelp experts can confirm that as of now there is not a tool with 100% accuracy. AI detectors always carry a small risk of false positives, where human-written text is incorrectly identified as AI-generated. Consequently, these tools should not be considered infallible in determining whether a text is AI-generated or not.

How do you tell if something was written by an AI?

There are a few ways how to detect AI-generated content by the naked eye. The first and foremost aspect that can catch readers’ attention is a pony narration style. After all, AI writers are models that are programmed to work according to a certain pattern. And anyone who has ever written something from scratch knows that breaking rules and omitting standard precautions is what makes text alive and compelling to read. Another reason to consider the paper or an essay to be generated by AI is inaccuracy. Many AI writers have updated versions in which this issue has been minimized. But still, false facts are red flags of the misuse of AI. Lastly, a lack of personal touch and personal voice indicates that the content might be AI-generated. AI tends to struggle with capturing the unique style and nuanced expression that human writers naturally bring to their work. This absence of individuality and emotional depth can often be a telltale sign of AI involvement in content creation.