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AI Detection: Top 10 AI Text Detection Tools You Need to Know

Updated on: JUL 7, 2024

 

Written by: Anthony

top 10 ai detection tools

ChatGPT is now free for all users and can be used without registration. This is great news for those who need text writing, as AI can help with topic selection, drafting outlines, and significantly improving writing efficiency. Besides ChatGPT, many other AI writing tools are emerging in the market.

However, the negative impacts of AI writing are also apparent. Overusing AI can lead to bad results, such as failing exams or being penalized by Google for SEOer. We have discussed this in detail in our previous blog posts. Therefore, using AI detection tools to identify whether AI-generated content has become more necessary. So today we recommend the top ten most popular AI text detection tools.

Table of contents

  1. Copyleaks
  2. ZeroGPT
  3. Originality.ai
  4. Winston.ai
  5. GLTR
  6. Content at Scale
  7. Writer AI
  8. Sapling AI
  9. Crossplag
  10. GPTZero

1. Copyleaks

Copyleaks uses various technologies to recognize AI-generated text. It extracts and analyzes content from thousands of universities, companies, and user pages worldwide to train its detector model. It supports detection of mainstream AI generation tools like GPT4, ChatGPT, Bard, human, and AI+human. According to the official website, the chance of original content being wrongly flagged is only 0.2%, and the detection accuracy can reach 99.1%. Copyleaks also offers services like plagiarism detection, code leak detection and correction, writing assistance, and content modification for AI-generated texts.

Price:

  • Free Version: Unlimited daily usage without providing detection reports.
  • Paid Version: AI + Plagiarism Detection for $16.99/month.
  • Paid Version: Plagiarism Detection for $10.99/month.
  • Paid Version: AI Content Detection for $9.99/month.

Pros:

  • Provides detection reports;
  • Plagiarism detection with source identification;
  • User-friendly interface;
  • Supports multiple languages.

Cons:

  • Registration is required;
  • Additional services require payment.

2. ZeroGPT

ZeroGPT supports the detection of various AI generation tools such as ChatGPT, GPT 3, GPT 4, Gemini, and LLaMa. It captures a vast collection of texts from the internet, educational datasets, and proprietary synthetic AI to train its model, minimizing false positives and false negatives. Additionally, in the detection results, AI-generated content is highlighted in yellow, while original content is shown in blue, making the results clear and easy to understand. You can also choose to export the detection report in PDF format on the right side.

Price:

  • Free Version: Each detection includes 15,000 characters.
  • Pro Version: $6.99 per month.
  • Max version: $14.49 per month.

Pros:

  • Detection results are clearly marked;
  • Support for uploading files;
  • Reports can be exported;
  • Batch processing is available.

Cons:

  • Sometimes original content is mistakenly marked as AI-generated.

3. Originality.ai

Originality.ai's model is trained in-house to detect content created using popular NLP models. According to their training results, the tool's detection is not 100% accurate, with about 2% false positives. The accuracy for detecting original GPT-4 output is 99%.

Price:

  • Pay-as-you-go: $30 per month for 3,000 credits (1 credit scans 100 words).
  • Basic subscription: $14.95 per month.

Pros:

  • Supports API, facilitating integration with other workflows;
  • Fact-checking assistance to help reduce false information;
  • Assists in team management;
  • Displays readability scores.

Cons:

  • Registration is required;
  • All services require payment.

4. Winston.ai

Winston.ai is an AI generation detection tool designed specifically for writers, educators, and online publishers. It has two main methods for analyzing texts: one is linguistic analysis, which examines the semantics and repetitiveness to determine if the text is AI-generated; the other is data training, primarily analyzing similarities between the text and a database of AI-generated texts. Based on a detection model trained with various AI generation tools, you input the text, and it generates an AI detection score below, precisely and clearly showing the AI content within the text.

Price:

  • Free: Scans up to 2,000 words.
  • Basic Plan: $12 per month.
  • Upgraded Plan: $19 per month.

Pros:

  • Supports various text formats;
  • AI prediction chart for sentence-by-sentence assessment;
  • Displays the percentage of AI-generated content;

Cons:

  • Registration is required;
  • Free users can only scan 2,000 words.

5. GLTR

GLTR is a project jointly developed by the MIT-IBM Watson AI Lab and the Harvard Natural Language Processing Group. It is a more traditional AI detection tool, mainly targeting content generated using the GPT-2 model, and it may not be suitable for the upgraded versions like ChatGPT and GPT-4. Unlike other detection tools, GLTR's unique feature is that it analyzes the frequency of certain words in the text through histograms. It uses the resulting uncertainty to determine if the text is AI-generated.

Price:

  • Complete free.

Pros:

  • Histogram display for easy comparison;
  • High precision in generated text;

Cons:

  • Complex interface;
  • Only supports GPT-2.

6. Content at Scale

Content at Scale is trained on a variety of text types, including blog posts, Wikipedia entries, academic papers, and several large language models (LLM). It offers text detection for sources like ChatGPT, GPT-4, Bard, Claude, and Gemini. Additionally, Content at Scale uses a combination of three AI engines, natural language processing (NLP), and semantic analysis algorithms to modify detected AI content, allowing it to evade detection by other AI detectors.

Price:

  • $49 per month.

Pros:

  • Suitable for SEO, academic, and educational content;
  • AI content rewriting;
  • Ability to generate voice files from text;

Cons:

  • Sometimes original content is mistakenly marked as AI-generated;
  • Only supports English;
  • Full reports require payment.

7. Writer AI

Writer AI is an AI writing assistant tool specifically designed for businesses, capable of detecting AI-generated content and checking for plagiarism. The platform also supports multiple employees from a company to join an AI team for collaboration, effectively improving the team's work efficiency. Within the Writer platform, you can not only input text for detection but also enter the URL of a page containing text. The page will automatically extract the text for analysis.

Price:

  • Free Version: AI detection service.
  • Team Plan: $18 per month.

Pros:

  • Team collaboration;
  • Supports batch uploading;
  • Integration with third-party services like Chrome, Google Docs, Word, Outlook, Figma, and Contentful;
  • Supports multiple languages.

Cons:

  • Accuracy needs improvement;
  • Character limit.

8. Sapling AI

Sapling AI is an AI content detector designed for ChatGPT extensions and also works with AI content generated by the Gemini model. It's suitable for educators, SEO professionals, and users. By entering text into the platform, you can get the detection results in just a few seconds, displayed as a percentage. Below, there are sections for overall text analysis and sentence-by-sentence analysis, along with a report that you can view by copying the provided link.

Price:

  • Free version available.
  • Pro version at $25 per month.
  • Paid Version: Plagiarism Detection for $10.99/month.
  • Paid Version: AI Content Detection for $9.99/month.

Pros:

  • Fast analysis speed;
  • Integration with other third-party applications;
  • Detection results are displayed with color blocks, making them simple and easy to understand.

Cons:

  • Insufficient accuracy;
  • Does not support web content detection.

9. Crossplag

Crossplag compares the input text with over 100 billion texts globally to produce its detection results, making this tool more convenient for students, teachers, writers, and bloggers. Simply enter or paste the text, and the AI content's proportion in the entire text will be displayed on the right side.

Price:

  • Pay-as-you-go: €9.95 for 5,000 words.
  • Bulk: €149.95 for 100,000 words.

Pros:

  • Simple and clean interface;
  • Supports multiple languages;
  • Detects citations within the text.

Cons:

  • Registration is required;
  • Accuracy is not high.

10. GPTZero

GPTZero is a classification model developed by Princeton student Edward Tian, designed to help educators predict and detect AI-written text. GPTZero incorporates the latest research on detecting ChatGPT, GPT-4, Google Gemini, LLaMa, and new AI models, investigating their sources to build a detection database.

Price:

  • Basic Plan: $10 per month for 150,000 words.
  • Premium Plan: $16 per month for 3,000,000 words.
  • Professional Plan: $23 per month for 5,000,000 words.

Pros:

  • Supports batch uploading;
  • Accepts various file types including PDF, DOCX, and TXT.

Cons:

  • The detection score can be confusing;
  • Occasionally, the detection results are inaccurate.