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Best AI Checker for Essays

The 7 Best AI Checkers for Essays in 2025

In the world of academic writing, originality and detecting AI-generated content have never been more important.

Whether you're a student, educator, or professional writer, using the right AI checker can help maintain authenticity and uphold academic integrity.

We tested dozens of AI checkers to create this list of the top 7 AI checkers for essays in 2025.


Our Favorite AI Checkers for Essays


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Provider Name

Best For

Star Rating

Price

Scribbr's AI DetectorParagraph-level feedback
5/5
Free plan; premium available
Originality.AIHigh accuracy in AI detection
5/5
Starts at $0.01/word
Grammarly's AI DetectorIntegration with writing tools
4/5
Free plan; premium starts at $12/mo
Copyleaks AI DetectorMultilingual detection
4.5/5
Custom pricing
GPTZeroAcademic use
4/5
Starts at $8.33/mo
Turnitin AI DetectionEducational platform integration
5/5
Institution-specific pricing
Content at Scale DetectorSupporting academic integrity
4/5
Starts at $20/mo

How We Chose These AI Checkers for Essays

When we were researching and testing out these AI checkers, we judged them based on these criteria:

1. Scribbr's AI Detector

Best for paragraph-level feedback and multilingual support – 5/5

Scribbr Logo

5 of 5 Stars

Scribbr's AI Detector stands out for its ability to provide detailed paragraph-level feedback, making it an excellent choice for academic and professional use.

Its multilingual capabilities allow it to reach a global audience, supporting languages like English, Spanish, and French.

The tool's interface is intuitive, offering detailed reports that are easy to understand. Scribbr is perfect for identifying nuanced AI-written content while offering writers constructive insights, and its commitment to accuracy and user support makes it a top choice for maintaining integrity in academic and professional writing.

Pros

  • Provides detailed feedback at the paragraph level
  • Supports multiple languages
  • User-friendly interface with clear reports
  • High accuracy in detecting AI content

Cons

  • Free version has limited features
  • Slower processing for lengthy documents
  • No bulk-upload option

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2. Originality.AI

Best for high accuracy in AI detection – 5/5

Originality.AI Logo

5 of 5 Stars

Originality.AI [our review] is amazing at detecting AI-generated content, including outputs from GPT-4 and other advanced models.

Its compatibility with multiple popular writing tools makes it an ideal option for content creators and academic users alike. The platform also features a plagiarism checker, combining two crucial tools in one.

It's especially valuable for professionals who require precise AI detection, and this tool’s intuitive interface and detailed reporting further enhance its overall appeal for users who are looking for reliable and efficient content analysis.

Pros

  • Exceptional accuracy for AI detection
  • Compatible with GPT-4 and other models
  • Includes plagiarism detection
  • Easy integration with writing platforms

Cons

  • Paid-only service
  • Limited language support
  • Requires an account for use

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3. Grammarly's AI Detector

Best for seamless integration with writing tools – 4/5

Grammarly Logo

4 of 5 Stars

Grammarly's AI Detector integrates with its other writing assistance tools, offering authenticity scoring alongside the grammar and style suggestions we all know and love.

It's ideal for users who want to enhance their writing while making sure it's free of AI-generated elements.

The tool's real-time detection and accessibility across just about all devices make it a versatile option for writers and editors. Plus, the integrations it offers with many of your institution’s existing workflows make it a great tool.

Pros

  • Combines AI detection with grammar assistance
  • Real-time feedback during writing
  • Works across multiple devices
  • Offers authenticity scoring

Cons

  • Limited detection for advanced AI models
  • Requires a premium subscription for full features
  • Reports lack detailed breakdowns

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4. Copyleaks AI Detector

Best for multilingual capabilities and detection accuracy – 4.5/5

Copyleaks Logo Main

4.5 of 5 Stars

Copyleaks AI Content Detector offers incredibly high detection accuracy and supports over 20 languages, making it one of the most versatile tools on the market. It features advanced algorithms that are capable of identifying AI-generated text easily and quickly.

This platform is particularly popular among educators for its detailed and exportable reports. The many integration options with learning management systems that it offers further enhance its usability for both academic and professional settings.

Pros

  • Supports over 20 languages
  • High accuracy in detecting AI content
  • Provides detailed reports
  • Integrates with popular LMS platforms

Cons

  • Expensive for individual users
  • Slightly technical for beginners
  • Free trial is limited

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5. GPTZero

Best for academic settings and perplexity metrics – 4/5

GPTZero Logo

4 of 5 Stars

GPTZero really focuses on academic use, using education-related metrics like perplexity and burstiness to assess text origin. It’s a particularly great option for teachers and researchers who want to ensure the integrity of student submissions.

We find that GPTZero is super straightforward to use, offering insights into text structure and flow of essays that show what is or is not AI-generated. The platform’s affordability and emphasis on transparency make it a super accessible and valuable tool for maintaining academic standards.

Pros

  • Designed specifically for academic use
  • Uses perplexity and burstiness for detection
  • Simple interface suitable for non-technical users
  • Affordable pricing for educators

Cons

  • Limited language support
  • Not as effective for short texts
  • No real-time detection features

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6. Turnitin AI Detection

Best for integration with educational systems – 5/5

Turnitin Logo

5 of 5 Stars

Turnitin's AI Writing Detection has been widely adopted in schools and universities, thanks to its integration with many popular educational platforms that these institutions are already using.

This educator-focused tool provides comprehensive reports, detailing which specific sections may be AI-generated.

Turnitin has been and remains a trusted name in academic integrity, making it a go-to choice for educators worldwide. Its robust support and regular updates make sure it stays ahead of ever-evolving AI technologies, providing reliable detection for institutions.

Pros

  • Seamlessly integrates with educational platforms
  • Highly trusted in academic settings
  • Provides detailed, exportable reports
  • Supports institutional workflows

Cons

  • High cost for institutions
  • Not available for individual users
  • Lacks real-time analysis

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7. BrandWell (formerly Content at Scale) Detector

Best for supporting academic integrity – 4/5

BrandWell-Logo

4 of 5 Stars

BrandWell, formerly Content at Scale, AI Detector, is another effective tool for identifying AI-written content in essays and research papers. This one provides fast, accurate results and is easy to use, even for those with limited technical knowledge.

We find this advanced tool to be a solid option for students and educators alike. Its user-friendly interface and focus on academic integrity make it a reliable choice for ensuring originality in written work, especially in an academic setting.

Pros

  • User-friendly and fast detection
  • Effective for essays and research papers
  • Supports academic integrity initiatives
  • Affordable for individual users

Cons

  • Limited features compared to competitors
  • Not optimized for multilingual detection
  • Basic reporting formal

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What Is an AI Checker for Essays?

What Is an AI Essay Checker

An AI checker for essays is a specialized tool designed to detect content generated by artificial intelligence in written work. It ensures the authenticity and originality of essays, helping to maintain academic integrity in an increasingly AI-centric landscape.

These tools are extremely valuable for educators, students, and professionals looking to confirm whether a piece of writing is human-generated or AI-assisted. By identifying AI-generated text, they are able to provide transparency and accountability in academic and professional writing.

How Do AI Checkers for Essays Work?

How Do AI Checkers for Essays Work

AI checkers analyze text using advanced algorithms and natural language processing (NLP) techniques to detect patterns and characteristics that usually indicate AI generation. They evaluate metrics like perplexity, burstiness, and sentence structure to compare the text against known AI-generated outputs.

Many tools also incorporate machine learning models trained on large datasets of human and AI-written content for more accurate AI detection. The results often include things like a percentage score or detailed feedback identifying specific sections that could require further review.

Features to Look for in AI Checkers for Essays

Features to Look for in AI Checkers for Essays

Looking for an AI essay checker for yourself? Keep these features in mind:

  • High Detection Accuracy: Ability to identify AI-generated content reliably, even from advanced models like GPT-4.
  • Granular Feedback: Detailed analysis at the sentence or paragraph level to pinpoint specific areas of concern.
  • Multilingual Support: Compatibility with multiple languages for users from diverse backgrounds.
  • Integration Options: Seamless compatibility with writing tools, learning management systems (LMS), or editing platforms.
  • Comprehensive Reports: Exportable and easy-to-understand results for deeper insights into the content's authenticity.
  • Real-Time Analysis: Instant detection capabilities for assessing content during the writing process.
  • Affordability: Transparent and flexible pricing plans catering to individuals, educators, and institutions.

Frequently Asked Questions

What is an AI detector for essays?

An AI detector is a tool that identifies AI-generated content in essays, helping to ensure authenticity and originality.

Are AI detection tools reliable?

Most AI detection tools offer high accuracy but vary depending on the AI model used and the complexity of the text.

Can AI detection tools work in multiple languages?

Yes, tools like Scribbr and Copyleaks support multiple languages, making them suitable for global users.

Are AI detection tools free to use?

Some tools offer free plans or trials, but most require a subscription or one-time payment for full access.