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Grammarly AI Detection 2025 – Can It Spot AI-Generated Text?

May 3, 2025

Grammarly has introduced AI detection to help users understand when text appears to be generated by artificial intelligence tools.

This feature is part of Grammarly’s commitment to transparency and responsible AI use, especially important for students, educators, and professionals who need to verify the authenticity of their work.

The tool analyzes your writing and provides a percentage score showing how much content may be AI-generated. In this article, users will explore how Grammarly’s AI detection works, its key features, practical applications, and limitations to help you use this tool effectively.

How Grammarly’s AI Detection Works?

Grammarly’s AI detection examines text patterns to identify sections that resemble AI-generated content.

Here’s what you need to know about the detection process:

  • Text segmentation: The tool breaks your document into smaller sections for analysis.
  • Pattern recognition: It checks each section for characteristics typical of AI writing.
  • Percentage calculation: The system generates a score indicating likely AI content.
  • Statistical assessment: Results show an estimate, not a definitive determination.

Features Of Grammarly AI Detection

Grammarly’s AI detection tool helps users identify AI-generated content with several practical features for transparency and ease of use.

  • Pattern Analysis: Examines language structures commonly found in AI-written text
  • Probability Scoring: Provides a percentage showing how much text appears AI-generated
  • Text Highlighting: Underlines specific sections that the algorithm identifies as AI-written.
  • Integration Accessibility: Works seamlessly in Google Docs, Microsoft Word, and browser extensions.
  • Guided Interpretation: Offers clear explanations to help understand detection results.

The AI detection feature integrates directly with Grammarly’s plagiarism checker, creating a complete originality verification system. Users can access both tools through the same interface, allowing them to check for both copied content and AI-generated text in one streamlined process.

How To Use Grammarly AI Detection Tool?

After you add Grammarly to Chrome or install the app on your mobile device, you’ll find the AI detection feature available while using Google Docs or other platforms where Grammarly is integrated.

Step 1: Visit Grammarly’s AI Detection Page.

Grammarly AI Detection Tool
Source: Grammarly.com

Step 2: Copy and paste your text into the provided input box.

Step 3: You can see the results while writing in software like Google Docs. The wrong word will be analyzed.

Google Docs detection

Grammarly recommends using this tool for short-form content (e.g., under 1,000 words) for best results.

Difference Between AI Detection and Authorship

AI Detection and Authorship serve different but complementary roles in content verification. While AI Detection scans finished text to identify AI-generated content, Authorship tracks the writing process from start to finish, documenting the origin of each piece of text. 

Understanding these differences helps users choose the right tool for their needs.

FeatureAI DetectionAuthorship
PurposeIdentifies AI-generated content in textCategorizes content by origin source
When It WorksAfter the content is written for evaluationThroughout the writing process
How It WorksAnalyzes text patterns typical of AITracks and labels text by the contribution source
Output FormatShows a percentage (e.g., 85% likely AI-generated)Provides a report showing sources of each part of the text
Citation SupportHighlights text needing citationsOffers citation suggestions for pasted content
AccuracyIt is not always preciseHigh accuracy, as it monitors actual user behavior
Helpful ForEducators, Editors, and Recruiters checking for AI usageStudents, Professionals proving their own writing process

These tools work best together, providing a complete package of content authenticity. Students and professionals can utilize both tools to verify the originality of their work, with Authorship offering tracking and AI Detection providing additional verification where necessary. 

Applications And Uses Of Grammarly AI Detection

AI detection serves various sectors needing content authenticity verification.

  • Education: Helps students verify the originality of their work.
  • Workplace: Ensures professional documents remain human-authored.
  • Academia: Supports research integrity and proper attribution.

Are There Any Limitations Of Grammarly AI Detection?

While Grammarly is safe and reliable, its AI detection tool has limitations. It gives you an educated guess about whether text might be AI-generated, not a definite answer.

Sometimes it might mistakenly mark human-written text as AI-generated, especially if your writing style happens to match AI patterns.

The tool can make errors both ways, sometimes missing AI content or wrongly flagging human writing. Always use your judgment and consider the full picture when reviewing your content.

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Conclusion: Grammarly AI Detection Tool Is Best For All Users

The Grammarly AI detection tool stands out as a valuable resource for anyone who needs to verify the authenticity of content.

It helps students, professionals, and educators maintain transparency in their work. Its integration with Grammarly’s existing features makes it more accessible across multiple platforms, from Microsoft Word to Google Docs.

Take advantage of this free tool to ensure your writing meets academic and professional standards. Sign up for Grammarly today to start using AI-powered detection and maintain confidence in your content.

FAQs

Why is my writing being detected as AI?

Your writing might be flagged as AI-generated if it follows patterns common in AI text, such as repetitive structures, standard phrases, or mechanical transitions. Human writing can naturally match these patterns.

Can Grammarly humanize AI text?

Grammarly cannot transform AI-generated content into human-sounding text. The tool focuses on detecting AI content and improving writing through grammar corrections and style suggestions.

Can Grammarly be detected as AI?

Grammarly’s basic corrections typically don’t trigger AI detection. However, content heavily edited using Grammarly’s generative AI features may be flagged as partially generated by AI.

What is Grammarly Authorship?

Grammarly Authorship tracks your entire writing process, recording sources of text and edits. It generates a transparent report that shows the origin of each piece of content.

Is Grammarly AI detection free or paid?

Grammarly AI detection is currently free for all users as part of the plagiarism checker feature, offering basic AI detection capabilities at no additional charge.

Sean Lewis is a seasoned educator and a passionate advocate for clear and effective communication. As a professor at the University of Oxford, he specializes in Linguistics and English Language Studies, helping students master grammar, writing, and communication skills. Having used Grammarly for years, Sean understands its value in academic and professional settings. To support his students and fellow writers, he has partnered with Grammarly to offer exclusive discounts through his website.

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