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12 Best AI Detection Tools in 2024 (Free & Paid)

AI Detection Tools

Using artificial intelligence (AI) in content creation has two sides. On one hand, AI acts like a wizard, quickly creating high-quality content and saving time for more valuable projects. However, it’s not all positive—AI-generated content can be unreliable and even inaccurate. As AI tools advance, it becomes harder to distinguish content created by them. AI detection tools come into play to analyze texts and images, determining if they were made by humans or AI.

This article introduces the top 10 AI content detectors to help differentiate between human- and AI-generated content.

What Is an AI Detection Tool?

An AI detection tool examines content to identify patterns that classify it as human- or AI-generated. When analyzing texts, these tools look for a lack of depth and creativity, repetition of words, specific sentence lengths, or inaccurate information.

For images or videos, AI detection tools scrutinize elements like objects, poses, or written characters to establish their origin. 🔎

Although these tools use powerful technology, it’s crucial to note they aren’t always accurate and can make mistakes. Blindly trusting a tool is not advisable.

How to Choose the Best AI Detection Tools for Your Needs

With plenty of AI-detection options available, choosing the right one is essential. To find a tool that balances functionality, ease of use, and reliability, consider the following features:

  • Multiple Language Model Support: Ability to detect AI-generated text from various models.
  • Accuracy: Minimal false positives and negatives for reliable results.
  • Scalability: Capability to analyze large data without compromising accuracy.
  • Customizability: Ability to customize the analysis process based on specific criteria.
  • Reporting Options: Providing an overview of analysis history to identify trends.
  • Cross-Platform Compatibility: Working well on multiple operating systems and devices.

Quick Review

ToolDescriptionBest FeaturesLimitationsPricing
CopyleaksAnalyzes sentences one by one, covers various models like Bard and GPT-4, and claims 99.1% accuracy with a 0.2% false positive rate.– Sentence-level analysis
– Full model coverage
– 99.1% accuracy (self-reported)
– Supports 30 languages
– Results viewing may be slower
– No option to exclude specific parts of a text
$9.16/month for 1,200 pages (yearly billing)
ZeroGPTOffers convenience and simplicity with multiple language support. Provides percentages indicating the likelihood of content being human or AI-generated.– ZeroGPT API for other apps
– Multiple language support
– No hidden costs or text analysis limits
– No option to attach files for analysis
– Interface may seem outdated
Free
CrossplagWidely-used plagiarism detection tool with an AI content detector. Uses machine learning algorithms to identify human or AI-created text.– Easy to use
– Quick
– Trained with over 1.5B parameters
– Lack of graphics in the interface
– English is the only supported language
Contact for pricing
GLTRAI detection tool developed by MIT-IBM Watson AI Lab and HarvardNLP. Analyzes text forensically using GPT-2 technology.– Offers in-depth text analysis
– Color-codes text for easier navigation
– Assesses word position to determine AI usage
– Made in 2019, may not be efficient for newer technologies
– Interpreting results can be challenging
Free
Content at ScaleStraightforward AI detector to assess text for human or AI origin. Color-codes text for easy interpretation.– Easy-to-interpret results
– Option to rewrite AI text
– Analyses each sentence
– AI rewrites aren’t always reliable
– Results can be unclear
Free, Pro version: $49/month
Originality.aiTwo-in-one tool offering an AI detector and plagiarism checker. Ideal for content marketing and SEO agencies.– Combined AI detector and plagiarism checker
– Shareable reports
– Collaborative options
– Limited options on pay-as-you-go pricing
– Some users reported inaccurate results
Pay-as-you-go: $30 for 3,000 credits, Base subscription: $14.95/month
Undetectable.aiUnique tool identifying AI content and allowing “humanization” of AI-generated parts.– AI content detector and text humanizer
– Supports up to 10,000 characters at a time
– Easy to use
– Some users find the price too high
– Interface may seem outdated
Free (limited options), Yearly: $5/month for 10,000 words
WriterFree and simple AI content detector with a straightforward interface.– Simple to use
– Can analyze content through URLs
– Offers a free grammar checker
– Doesn’t color-code AI- and human-generated sentences
– No option to upload text files or images
Free
Hugging FaceAI community offering an AI content detector classifying content as real or fake.– Excellent for tech-savvy users
– Community support
– Open-source
– Non-tech-savvy users may find it less useful
– Results aren’t as clear as with other AI detectors
Free
Winston AIEasy-to-use AI content detector with OCR technology. Supports multiple languages.– OCR technology
– Processes handwritten texts
– Sentence-by-sentence assessment
– Reporting options could be improved
– Supports fewer languages compared to competitors
Free, Essential: $12/month, Advanced: $19/month
Sapling AI DetectorAI content detection tool designed for accuracy in short-form content. Tailored for customer support and sales teams.– Provides an overall percentage of inauthentic content
– Access to API for bulk checking
– Works inside CRMs and email clients
– Limited integration with Sapling’s broader use cases
– Higher pricing for word count limits
Free to use on website, Paid plans starting at $25/month
AISEO Content DetectionPart of the AISEO platform, scans text for AI-generated patterns. Focuses on creating SEO-optimized content.– Assists in generating SEO-optimized copy
– Easy-to-use with accurate results
– Comprehensive reporting
– Limited free options
– Some users reported inaccurate results
Limited free options, Paid plans starting at $19/month

Top AI Detection Tools

Copyleaks

ai detection

Copyleaks is an AI detector that can be great for your business. It analyzes sentences one by one, covers various models like Bard and GPT-4, and claims an impressive 99.1% accuracy with only a 0.2% false positive rate for AI-generated content.

This tool gives detailed information about which parts of the text are human-written and which might be from AI. It even shows sections that are paraphrased by AI. Copyleaks supports 30 languages, making it suitable for multinational enterprises. It can also analyze source code, making it handy for programming and software development teams.

Best Features:

  • Sentence-level analysis
  • Full model coverage
  • 99.1% accuracy (self-reported)
  • Supports 30 languages

Limitations:

  • Results viewing may be slower compared to some other AI-content detection tools
  • No option to exclude specific parts of a text

Pricing:

  • $9.16/month for 1,200 pages (each page covers up to 250 words of scanned content)
  • The listed price refers to the yearly billing model

ZeroGPT

image 13

If you prefer convenience and simplicity, ZeroGPT might be the AI detector for you. It supports multiple languages, including English, French, Indonesian, German, and Hindi. This makes it suitable for educators and content teams globally. ZeroGPT provides an API for real-time AI content detection in other apps and programs.

When you scan content, the tool gives you percentages indicating the likelihood of it being human or AI-generated. It highlights AI-generated parts in yellow as you scroll down.

Best Features:

  • ZeroGPT API for use in other apps
  • Multiple language support
  • No hidden costs or text analysis limits

Limitations:

  • No option to attach files for analysis
  • Interface may seem outdated to some users

Pricing:

  • Free

Crossplag

image 14

Crossplag is a widely-used tool to detect plagiarism. It now includes an AI content detector with machine learning algorithms that can accurately figure out if a text was created by a human or AI.

The AI detector is smart—it’s trained to recognize patterns in human-written texts. Crossplag can spot differences from these patterns and shows you percentages to indicate the likelihood of your text being AI-generated.

Using Crossplag is easy—all you have to do is copy and paste your text, click “Check,” and let Crossplag do its thing. 🪄

Best Features:

  • Easy to use
  • Quick
  • Trained with over 1.5B parameters for maximum accuracy

Limitations:

  • Lack of graphics in the interface
  • English is the only supported language

Pricing:

  • Contact for pricing

GLTR

GLTR, which stands for Giant Language Model Test Room, is an AI detection tool developed by MIT-IBM Watson AI Lab and HarvardNLP. It lets you analyze a text forensically to determine if it was created by AI.

Using GPT-2 technology, the tool examines each word to figure out how likely it is that AI generated it. It looks at the context before the word and the probability that AI would create that sequence of words.

GLTR color-codes the text to make it easy to navigate. If a word is green, it’s in the top 10 predictions by AI. Yellow indicates the top 100 predictions, and red is for the top 1,000 predictions. Mostly green text means there’s a high chance AI generated it.

Best Features:

  • Offers in-depth text analysis
  • Color-codes text for easier navigation
  • Assesses the position of words to determine AI usage

Limitations:

  • Made in 2019, so may not be efficient for newer technologies
  • Interpreting results can be challenging for first-time users

Pricing:

  • Free

Also read: 14 Best AI YouTube Video Summarizers

Content at Scale

image 15

Content at Scale’s AI detector is a straightforward way to assess a text and determine if it’s created by humans, AI, or a mix of both.

The tool has been trained with various types of content, like blog posts, essays, Wikipedia entries, and thousands of articles, to provide reliable results. It can identify if a text was generated by ChatGPT, Bard, Claude, and other tools.

When you run the analysis, the tool color-codes your text to show which parts are likely generated by AI and which were written by humans. Green means human origin, red suggests AI, and yellow or orange means your text may need rewriting to avoid sounding robotic.

Best Features:

  • Easy-to-interpret results
  • Offers an option to rewrite AI text to sound human
  • Analyses each sentence

Limitations:

  • AI rewrites aren’t always reliable
  • Results can be unclear

Pricing:

  • Free
  • Pro version: $49/month

Originality.ai

Originality.ai is a handy two-in-one tool that not only detects AI content but also checks for plagiarism. It can identify texts created by well-known AI tools like ChatGPT and Bard with impressive accuracy.

Perfect for teams, Originality.ai offers collaborative features such as adding coworkers, viewing scan history, and sharing results. While primarily aimed at content marketing and SEO agencies, it’s open for anyone who wants to ensure their content is free from AI influence.

Apart from the AI detector and plagiarism checker, Originality.ai provides free readability tests to help create content that’s easy to understand and engaging.

Best Features:

  • Combined AI detector and plagiarism checker
  • Shareable reports
  • Collaborative options
  • Readability tests

Limitations:

  • Limited options on the pay-as-you-go pricing model
  • Some users reported inaccurate results

Pricing:

  • Pay-as-you-go: One-time payment of $30 for 3,000 credits (one credit scans 100 words)
  • Base subscription: $14.95/month for 2,000 credits (each additional credit is $0.01)

Ratings and Reviews:

  • Product Hunt: 2.9/5 (20+ reviews)

Undetectable.ai

Undetectable.ai is a unique tool that serves a dual purpose. It not only identifies AI content in your text but also allows you to “humanize” AI-generated parts to avoid detection. 🚩

Using the platform is straightforward—paste the text and press the “Check for AI” button. You can customize readability and purpose to ensure the tool understands your intent.

If the results show AI-generated parts, you can press “Humanize” to transform them into content that might slip past other AI detectors.

Best Features:

  • AI content detector and text humanizer
  • Supports up to 10,000 characters at a time
  • Easy to use
  • Recognizes text from GPT-3, GPT-4, Bard, Claude, etc.

Limitations:

  • Some users find the price too high
  • The interface may seem outdated

Pricing:

  • Free (limited options, no text humanizer)
  • Yearly: $5/month for 10,000 words—can be customized
  • For Business: Contact for pricing

Ratings and Reviews:

  • Product Hunt: 5/5 (less than 10 reviews)
  • G2: 5/5 (less than 5 reviews)

Writer

Writer is a straightforward and free AI content detector with no unnecessary features. It combines a simple interface with powerful functionality.

Your task is simple—copy and paste the text, click “Analyze text,” and Writer will display a percentage indicating whether your text is human- or AI-generated.

There’s also an option to add a URL and analyze its content origin. Keep in mind that the maximum character limit is 1,500.

Best Features:

  • Simple to use
  • Can analyze content through URLs
  • Offers a free grammar checker

Limitations:

  • Doesn’t color-code AI- and human-generated sentences
  • No option to upload text files or images for analysis

Pricing:

  • Free

Ratings and Reviews:

  • No reviews available

Hugging Face

Hugging Face is an AI community where users collaborate on models, datasets, and apps. The platform offers a quality AI content detector that classifies content as real (human-generated) or fake (AI-generated).

Results are displayed in decimal points, providing a fun and refreshing experience for tech-savvy users. If you prefer a different format, there’s a recommendation for a better user experience at the bottom of the Hugging Face AI content detector’s page.

Best Features:

  • Excellent for tech-savvy users
  • Community support
  • Open-source

Limitations:

  • Non-tech-savvy users may not find it as useful
  • Results aren’t as clear as with other AI content detectors

Pricing:

  • Free

Winston AI

Winston AI is an easy-to-use AI content detector with an intuitive dashboard. It analyzes your text thoroughly and displays the likelihood of it being AI-generated content. The platform supports various file types and uses advanced optical character recognition (OCR) technology, reading text from images and handling handwritten texts.

The self-reported accuracy rate of Winston AI is 99.6%. It provides an overall probability and a sentence-by-sentence assessment, supporting English, German, Spanish, and French.

Best Features:

  • OCR technology
  • Processes handwritten texts
  • Sentence-by-sentence assessment
  • Multi-language support

Limitations:

  • Reporting options could be improved
  • Supports fewer languages compared to some competitors

Pricing:

  • Free
  • Essential: $12/month for up to 80,000 words
  • Advanced: $19/month for up to 200,000 words
  • All listed prices refer to the yearly billing model

Sapling AI Detector

Sapling, a company known for its various AI tools, also has an AI content detection tool available. This tool is specially designed to accurately find AI-generated content. What sets it apart is its capability to identify AI-generated content even in short texts of just 50 words, making it reliable for those working with brief content. Additionally, the color-coded results make it simple for users to understand, ensuring it’s a user-friendly tool to verify your content’s originality. With a subscription, users get access to the AI content detector, sentence autocomplete, and more. It’s tailored for customer support and sales teams, creating detailed reports on how agents use AI for coaching and training to enhance their skills over time.

Key Features of Sapling AI Detector:

  • Provides an overall percentage of inauthentic content
  • Access to API for bulk or app-based content checking
  • Works seamlessly inside CRMs and email clients

Sapling offers a solid choice for AI content checking, and it includes a handy browser and API for extended usage. It’s best suited for customer support or sales professionals, although integrating content detection tools with Sapling’s broader use cases might be challenging. Nevertheless, considering its text generation detection capabilities, it’s a reliable tool. The paid plans, offering higher word count limits for detection, are priced higher, so organizations need to assess if the full product justifies the costs.

Pricing:

  • Free to use on their website
  • Paid plans with longer character limits starting at $25/month

AISEO Content Detection

AISEO, an extensive platform providing a suite of tools, features the AI Content Detector among them. This tool scans text to identify patterns indicative of AI-generated content. While the platform offers various tools, the AI Content Detector is a standout resource for ensuring the authenticity of digital content. The rest of the platform focuses on creating AI-generated content with efficient workflows.

Key Features of AISEO:

  • Assists in generating SEO-optimized copy
  • Easy-to-use with accurate results
  • Comprehensive reporting for easy insights

Every tool in the AISEO product is crafted for SEO purposes. Quality and original content are crucial for this, and AISEO aids writers and content marketers in maintaining the required freshness. This tool is perfect for content marketers and editors who need to check the originality of their content, especially when analyzing large volumes. Its advanced writing features make it suitable for businesses aiming to produce high-quality content. It’s beneficial for SEO professionals who must ensure their content is unique to uphold their website’s SEO ranks.

Pricing:

  • Limited free options
  • Paid plans starting at $19/month
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