Top 10 AI Detection Tools
The development of artificial intelligence technologies brings people advantages and bright prospects. But their use is also closely related to some controversial issues. One of the latest has been the widespread use of AI-generated texts in education, science, medicine and other important areas. Their quality and reliability are often inferior to the original author's content. In addition, the ethics of their existence raise doubts. In this regard, a problem arose: how to detect AI-generated content. Specialized AI content detector services helped solve it.
AI detectors use machine learning models to analyze texts and identify signs that they were created by generative neural networks. These services focus on lack of depth and creativity, repetition of certain words and phrases, length of sentences, and inaccurate or outdated information. In addition to text detectors, there are platforms for detecting AI-generated images or videos. They scan visual content both as a whole and by area/frame to look for signs of artificial intelligence. We bring to your attention the 10 most famous and popular systems for recognizing AI content. In our article, you will learn about their functionality and cost of use.
Copyleaks
Copyleaks is one of the most popular free services for recognizing AI-generated content. It is optimally suited for both individual and corporate users. The program has a convenient, intuitive interface and an extension for the Chrome browser that allows you to automatically check entire website pages.
Key features:
- According to the developers, the accuracy of its algorithms reaches 99.12%, and the proportion of false positives does not exceed 0.2%.
- The service recognizes content created by almost all modern generative AI systems: ChatGPT, GPT-4, GPT-3, Jasper, Google Bard, GitHub Copilot, and so on.
- When checking, it highlights both AI-generated and human-written text.
- Gives a limited number of daily free checks. Unregistered users receive the least of them. To increase the limit, you need to register.
- Copyleaks has a built-in plagiarism detector, which allows you to conduct comprehensive checks. It can be used to find AI-generated text that was originally plagiarized or paraphrased.
- The service is optimally suited for corporate clients, including educational institutions, online publications and other media, as well as any companies and organizations.
- Using this detector, you can check not only texts but also program codes. Algorithms recognize code generated by ChatGPT, GitHub Copilot and other neural networks.
- Supports more than 30 languages. Their amount is regularly replenished.
- Integrations with third-party systems are available via API and LMS, such as Canvas, Blackboard and Moodle.
Copyleaks paid verification starts at $8.33 for 1,200 credits per month, billed annually.
Winston AI
Winston AI is positioned as the ideal service for searching AI content in the field of education. However, it is suitable not only for teachers and students but also for everyone who works with text – authors, editors, webmasters, and publishers.
Key features:
- The service interface allows you to copy/paste text or download it in files of different formats (DOCX, JPG, PNG).
- Optical character recognition (OCR) technology can read text from images, including handwritten text.
- According to the developers, Winston AI is one of the most accurate AI detectors on the market. Its accuracy in recognizing generated content reaches 99.6%, with virtually no false positives.
- Winston AI detection has a built-in plagiarism detector. Additionally, it recognizes mixed (both AI and human-generated) or paraphrased text.
- Based on the results of the check, the platform generates a PDF report with the results. Users may download and distribute this document.
- In addition to displaying the overall percentage of AI-generated text, the service gives a detailed score for each sentence in it and evaluates the readability of the text.
- The service allows you to connect several users to one account.
- The service currently supports English, German, French and Spanish.
The Free tariff plan provides a limit of 2000 words per week. The Essential plan ($12 per month, billed annually) allows you to review up to 80,000 words of text each month. When you sign up for the Advanced plan ($19 per month if paid annually), this limit increases to 200,000 words per month.
ContentDetector.AI
ContentDetector.AI is not as widely known as other platforms for recognizing AI-generated text, but it also has a significant audience. It can hardly be called a corporate-level service, but it offers the most simple and intuitive web interface with a decent set of functions.
Key features:
- The procedure for checking text via the web interface takes only a few seconds.
- There are no restrictions on the volume of text checked at a time or the number of checks per day, week, or month.
- ContentDetector.AI is suitable for recognizing text that was generated by the GPT-3.5 and GPT-4 language models. It detects ChatGPT-generated content with 85% accuracy.
- To achieve maximum efficiency, it is recommended to add blocks of text of at least 250 words.
- Based on the results of the check, the system generates a report indicating the share of AI-generated text (in percentage) and the intended source (the name of the neural network).
- The built-in free plagiarism detector allows you to check the uniqueness of chatbot remarks by comparing them with extensive data sets in the platform database. It shows the approximate share of plagiarism in the text (in percentage).
- Currently, the service recognizes AI text only in English.
- The Language Detector feature allows you to insert a block of text and automatically determine what language it is written in.
- More than 50 languages and unlimited text are supported.
All service tools are absolutely free. Their use does not require registration, subscription or other actions.
CrossPlag AI
CrossPlag AI is a popular service for checking text for plagiarism that is also capable of recognizing AI-generated content. It uses specially trained machine learning algorithms that can determine who is the author of a particular text – a person or a neural network.
Key features:
- In the process of creating the system, more than 1.5 billion parameters were involved, which, according to the developers, provided it with high assessment accuracy.
- Like other participants in the best AI detection tools collection, CrossPlag determines the likelihood that the text offered to it was created using a language model. Users see this indicator not only in numerical format (percentages), but also in the form of a graphic color scale.
- According to third-party experts, the accuracy of this detector is about 60%. On the other hand, no false positives were observed behind it.
- CrossPlag has a built-in plagiarism detector and supports LTI integration.
- The service is suitable for checking texts only in English. Registration is required to use it.
The platform provides flexible prices for its services. Individual users can check texts up to 1000 words for free. For €9.95, they get a 5,000-word limit, and for €149.95, they get a 100,000-word limit. There is also a separate line of plans for educational institutions with an unlimited limit of checks for a fixed subscription fee: €3.99 per user when connecting to 500 people, €2.99 per user – from 500 to 5000 people, and €1.99 per user – from 5000 to 30,000 people.
GPTZero
The GPTZero program is a shareware AI detector. When analyzing content, it looks for signs of AI-generated text at several levels simultaneously: sentence, paragraph, and entire document.
- To check the text, the user needs to paste it into the appropriate window on the site or upload a file. There is a function for simultaneous downloading of up to 10 files.
- Upon completion of the analysis, the system produces a result with multicolored marks for those parts of the text that, in its opinion, were generated by the AI.
- GPTZero offers a rather unusual way to detect AI content. In the scan results, it does not indicate the exact proportion of AI text in the document. Instead, users receive a rough estimate such as “Your text is most likely written entirely by artificial intelligence” or “Your text is most likely written entirely by a human.”
- The developers claim that their service consists of 7 components and is trained to recognize content from ChatGPT, GPT-4, Google Bard, LLaMa and other language models.
- An extension for Google Chrome that allows you to automatically scan web pages for AI content. Based on the results of checks, you can create reports with statistics in Google Docs.
- The presence of the AI Detection API makes it possible to integrate GPTZero functionality with third-party systems for automated content analysis. Integrations with Microsoft Word and LMS are supported.
- The platform performs a comprehensive text check for AI and plagiarism.
The Free tariff plan allows you to check texts for free through the web interface and Chrome extension, with a total limit of 10,000 words per month and 7 checks per hour. Purchasing the Essential package for $10 per month (if paid annually) increases the monthly limit to 150,000 words. With the $16 per month Premium plan (if paid annually), the limit increases to 300,000 words and adds plagiarism checking and sharing.
Content at Scale
Content at Scale stands out from other platforms in our selection in that it is a platform tool for generating texts using AI. Its versatility and ease of use make it suitable for a wide audience of users, from authors and webmasters to students and teachers.
Key features:
- The service’s algorithms analyze each offer and mark it with a specific color. The green color means this text was written by a human. Red sentences have clear signs of AI generation. It is advisable to rewrite the yellow and orange text to make it more lively and readable.
- The system evaluates the “humanity” of the text it verifies on a 100-point scale. The Human Content Score is based on criteria such as predictability, probability and pattern.
- The automatic content editing functionality helps to quickly and easily improve its readability and eliminate signs of AI generation.
- Content at Scale AI detector can recognize text generated by various neural networks: ChatGPT, GPT-4 and previous versions, Claude, Google Bard and others. According to the developers, the accuracy of its assessment is 98.3%.
The basic version of the service is offered free of charge and without mandatory registration. The maximum text volume is limited to 25,000 characters. The $39 per month Generative AI plan (if paid annually) provides you with access to an unlimited number of checks, allows you to analyze web pages by URL, and generates texts of up to 25,000 words using the system's algorithms.
ZeroGPT
If you are interested in how to detect AI generated content without paying or registering, ZeroGPT is one of the best options. Like other similar services, it analyzes texts with specially trained algorithms and recognizes content generated by neural networks.
Key features:
- The platform has a classic interface for such systems and allows you to check text up to 15,000 characters for free. Bulk upload of text files is supported.
- DeepAnalyse™ technology identifies content from well-known language models such as ChatGPT, GPT-3, GPT-4, Bard, LLaMa and others.
- In addition to the AI detector, ZeroGPT offers other tools. These include the AI Text Summarizer, AI Paraphraser, AI Grammar & Spell Checker, and Word Counter.
- Users of the service have access to its own AI chatbot called ZeroCHAT-4. According to the developers, it is more accurate and reliable than the famous ChatGPT.
- In an independent evaluation, ZeroGPT showed an accuracy of 64%. It recognized four out of five GPT-3.5 texts and three out of five GPT-4 texts. The system performed well in searching for paraphrased and mixed content created with AI and human input.
- Like other similar platforms, it highlights dubious sentences in color and gives an overall assessment of the “humanity” of the text as a percentage.
- There is support for multiple languages as well as an API (for paid plans only).
The Pro plan, for $8.49 per month (if paid annually), allows you to check texts of up to 100,000 characters each month and upload up to 50 files at a time. The Plus plan, for $22.49 per month (if paid annually), increases the download limit from 50 to 75 files at a time, disables ads and provides other benefits.
Illuminarty
The Illuminarty platform is another worthy detector in our selection. What distinguishes it from other similar services is its ability to analyze not only texts but also images.
Key features:
- Using computer vision algorithms, the service identifies any digital images created with the participation of generative AI.
- NLP algorithms help recognize texts generated by neural networks.
- Both Illuminarty detectors are available through browser extensions, allowing you to automatically detect AI content on website pages as you browse them.
- The platform makes it possible to check which areas of the image were generated by AI and which language models were used for this.
- The presence of an API allows you to integrate Illuminarty tools into third-party programs and applications for mass automated analysis.
Available to any user, the Free plan provides basic AI image and text detection services without any payment. Suitable for individual users, the $10/month Basic plan adds scan scope localization and AI model definition capabilities. Additionally, it provides API integration with a limit of 10,000 requests per day. The business-optimal Pro plan ($30 per month) provides everything that the Basic plan does, plus an increased limit of API requests (up to 30,000 per day) and support for API integration issues. The Enterprise plan is presented separately with individual conditions and prices, which can be found upon request.
TraceGPT AI Plagiarism Checker
TraceGPT AI Plagiarism Checker is a multifunctional system. It combines tools for recognizing plagiarism and AI-generated content.
Key features:
- The service has a classic web interface where you can insert text for verification directly (minimum 250 characters) or in DOC, DOCX, TXT, ODT, RTF, or PDF files.
- According to the developers, the service uses advanced AI technologies that analyze a set of parameters and accurately determine the content created by neural networks without false positives.
- The plagiarism check function built into this AI detection software finds exact matches of text, replacement of word order in sentences, synonymization, as well as changes of verb voice in sentences (from active to passive and vice versa).
TraceGPT AI Plagiarism Checker offers teachers and educational institutions free access to its tools for one year. They can then upgrade to the Unlimited Advanced plan (at $1 per user). The line of paid plans for individual users is represented by the Basic ($5.99 with a limit of 20 pages), Light ($9.99 – 50 pages), Standard ($25.49 – 150 pages) and Premium ($45.49 – 300 pages) plans. For business, the Basic ($69 – 1000 pages), Light ($299 – 5000 pages) and Standard ($599 – 10,000 pages) plans are available.
GPTKit
Our selection of the best AI content detection tools is completed by the GPTKit platform. Along with other services of this type, it provides users with a simple, convenient, and, importantly, free tool for recognizing text content created by AI.
Key features:
- You can use the system even without registration. Just insert text or a fragment of it into the window on the main page and click on the “Submit” button. In addition, the service allows you to upload text files.
- The developers claim that GPTKit is trained on 1 million datasets and uses 6 different AI content detection methods, which provides it with 93% accuracy. This metric was determined through testing on an extensive data set of 100,000 pieces of text written by people and ChatGPT.
- The system provides reports on the authenticity and reality of the content it verifies.
- Currently, the platform can only process texts in English.
- GPTKit temporarily stores text entered by users while it is being processed. Upon completion of the analysis, they are instantly deleted from the servers.
- Registering an account on the service is available in several ways: via email and password, as well as Google, Microsoft or GitHub.
The free plan allows you to check texts up to 2048 characters with a limit of 5 requests per minute. The Personal tariff plan ($5 per month) allows you to check text up to 10,240 characters with a limit of 10 requests per minute. It increases the speed of analysis and gives shared access to the account to 3 users, including the owner. The Team plan ($10 per month) provides a limit of 30,720 characters and 20 requests per minute, allows you to connect to 8 users per account, and provides access to the API. The Institution plan ($20 per month) provides maximum limits (153,600 characters and 25 requests per minute), supports up to 20 users, and provides API access.
Conclusion
If you are interested in tools for AI content detection, you can easily find many free and paid options in the selection we present. Almost all the systems described in the article offer a free plan with limited functionality, which will be quite enough for periodic checks of small texts. For regular mass analysis, it is worth purchasing a paid subscription to one of the services. The most budget-friendly plans are available from GPTKit ($5 per month), Trace GPT ($5.99 per month), and Copyleaks ($8.33 per month). Some systems have a built-in plagiarism detector, and the Illuminarty service is capable of finding not only AI-generated texts but also images.
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