What does Undetectable AI's AI detector do?

Undetectable AI's AI detector is designed to analyze text thoroughly, identifying AI-generated content with exceptional accuracy. Using advanced machine learning models and comprehensive text analysis techniques, our tool detects subtle markers of AI-generated text across various platforms and AI models like ChatGPT, GPT-4, and Gemini. This ensures that content creators can distinguish between human-written and AI-generated content effectively.

How does Undetectable AI's AI detector compare to others?

Unlike basic AI detection tools, Undetectable AI's AI detector offers a comprehensive approach by integrating with multiple AI models and platforms. This integration allows our tool to provide extensive coverage and detailed analysis of AI-generated content, including detection capabilities for popular AI models. By leveraging collective intelligence and advanced algorithms, our AI Content detector enhances accuracy and reliability in identifying AI content across diverse applications and scenarios.

What features does Undetectable AI's AI detector tool offer?

Undetectable AI's AI detector offers a range of advanced features designed to enhance content analysis. From detecting AI-generated text across various platforms and models to providing detailed scores into how they identify your content, our AI detector tool ensures comprehensive coverage and reliable detection capabilities. Users can benefit from features such as real-time analysis, integration with popular AI models, and customizable detection settings to suit diverse content creation needs.

How can Undetectable AI's AI checker improve content creation strategies?

By utilizing Undetectable’s AI detector, content creators can refine their strategies to optimize content quality and authenticity. By ensuring content complies with ethical standards and stands out for its originality, our AI detector empowers marketers, writers, bloggers, and researchers to achieve sustainable growth and visibility in digital environments.

Is the AI Checker free?

Yes. Undetectable AI includes a free AI Checker with no sign-up required. Paste your text to get instant multi-detector results. For best accuracy, use around 200 words or more.

Which models can the AI Checker evaluate?

The AI Checker is designed to evaluate text likely written by ChatGPT/GPT-5, Claude, Gemini, Llama, and others. It can also help identify AI-refined or paraphrased content.

Does the AI Checker store my text or use it to train models?

No. Your inputs are not added to public training sets or shared. For teams, our business plans offer stricter data retention controls.

Rated #1 Best AI Detector by Forbes!

"Making AI-generated content more human-like"

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"Unrivaled accuracy and writing styles!"

AI Detector: Trusted AI Checker for ChatGPT & More

Paste your text into our AI Detector to check if it will be flagged as AI-generated content. Get results from major AI Checkers instantly with just one click. Our tool detects AI content from AI-content generators such as ChatGPT, Gemini, Claude, Llama, and others.

0/10000 Words

TRUSTED BY LEADING ORGANIZATIONS. OUR AI CHECKER HAS BEEN FEATURED ON…

TRUSTED BY 21,984,554 USERS

55,801 NEW USERS THIS WEEK

Never worry about AI detecting your texts again. Undetectable AI can help you:

See the probability of AI detection in your texts across all major detection tools at once
Make your AI-assisted writing appear human-like.
Go from detected AI content to 100% human-content scores.
Use AI safely and confidently in work and academic settings.

The Most Accurate AI Checker: 99%+ Accuracy Proven By Independent Tests

Undetectable AI consistently outperforms competitors in real-world tests and independent media reviews, helping you detect AI-generated content with unmatched precision.

Tool

"Sensitivity of Free AI Detectors"

"5 AI Content Detectors that Work"

"Best AI Detectors"

"The Top 7 AI Detectors of 2024"

"Best Free AI Detection Sites"

Undetectable AI

100% detection / 0% false positives

Rated as 100% accurate in AI detection

Recognized for advanced syntax, style, and structure analysis

Ranked #1. Praised for 95% accuracy

Grade A+

Detected all 4 test texts with 100% accuracy

Originality.ai

87.9% detection / Some false positives

Good for basic AI detection

Good entry-level option

Rated as reliable but flagged for aggressive detection and false positives

Grade C

Wrongly flagged NYT text as AI

GPTZero

77.2% accuracy / False positives

Failed to detect reworded content

Listed

Not mentioned in the report

Grade B-

Some ambiguity on Gemini text

Writer.com

62% accuracy / High false positives

Missed paraphrased AI text

Not included

Ranked #7. Criticized for basic results

Grade D

Called AI text "Fantastic!"

Copyleaks

Not in NIH study

Not reliable for SEO rewrites

Low accuracy on rewritten content

Ranked #5. Mixed accuracy and user satisfaction

Grade A

Flagged all AI text correctly

Honorable Mention

A 2024 peer-reviewed study published in the Indian Journal of Psychological Medicine (indexed by NCBI and the U.S. National Library of Medicine) tested the 10 most popular free AI detectors. Undetectable AI achieved

Detect 100% of AI-generated text
Detect 100% of paraphrased AI content from tools like QuillBot, Grammarly, and ChatGPT
0% false positives on human-written content

"Undetectable AI and Sapling detected all three software-generated contents with 100% accuracy."

— Kar et al., Indian J Psychol Med, 2024

Why Our AI Checker Outperforms the Rest

Detects GPT-3.5, GPT-4, Claude, Gemini, and paraphrased content
Top scores across scientific and real-world evaluations
Used by educators, publishers, and global institutions
Offers built-in tools to humanize AI content when needed

The AI Detector Trusted by Industry Leaders

Here's what top publications say about us

Undetectable.ai delves deeper into the fabric of the text, analyzing its structure, syntax and stylistic elements to quantify the probability of AI involvement.

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Undetectable AI's unique approach sets it apart from competitors in the niche, boasting unrivaled accuracy and the ability to replicate different writing styles.

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One of the best ways to check if AI wrote something is to use Undetectable.ai, which is entirely free and provides a comprehensive detection score across 8 different detector models

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With this tool, you can generate rewritten text within a few seconds without worrying about AI content detectors.

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Undetectable.ai’s big seller isn’t just about stealth. It’s about crafting human-like text that slips past AI detectors like Turnitin and Copyleaks.

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A standout feature of Undetectable AI is their free AI detector, which uses a multiple detector scoring system so you can see how other AI detectors might judge it.

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Undetectable AI is at the forefront of making AI-generated content more human-like, paving the way for its wider adoption and acceptance.

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Time is money, especially in the fast-paced world of content creation. Undetectable AI seems to understand this because the platform boasts quick processing times.

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Undetectable.ai definitely has the best free AI detector, because it provides users with paid AI detection models all in one place.

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The mission of Undetectable AI is not just about providing sophisticated ai writing tools; it's about making these tools accessible to a wide spectrum of users.

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Whether you’re crafting blog posts, optimizing product descriptions, or generating SEO-friendly content, embracing Undetectable AI could significantly enhance your digital footprint.

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Not only is it a sophisticated AI detector, but should the content be flagged as AI-generated, its algorithms work to 'humanize' the text.

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Be More Productive with the Undetectable AI Chrome Extension

With the Undetectable AI Chrome Extension, be prepared and more productive wherever it is you are online. Identify AI-generated content and humanize your written text no matter where you are. Whether on social media, writing an email, or creating a Google Doc, our extension makes it possible for you to speed up your work and improve your efficiency by making you work better and faster.

TRY IT NOW

See Why Users Love Undetectable AI's Detector Tool

Free AI Detector and Checker:

Our AI Checker tool is completely free, providing advanced AI detection without any cost

Collective Results From Multiple Detectors:

See if your text passes AI detection from many major AI checkers and detectors at once with just one click.

Trusted by Professionals and Businesses Alike:

Renowned around the world for reliable AI detection and an unwavering commitment to confidentiality.

Multi-Language Functionality and Support:

Benefit from multi-language support, enabling AI detection across diverse linguistic contexts.

User-Friendly Interface:

Seamlessly navigate through our intuitive interface and suite of tools, designed so anyone can use with ease

Award-Winning Accuracy:

Nominated by Forbes as the best AI detector on the market, and trusted by top media outlets around the world.

Ready to try out our AI checker? Dive in and experience unparalleled AI detection capabilities for FREE!

Our AI Content Detector is Perfect for:

Bloggers & Online Content Writers

Write with confidence by checking whether any part of your draft sounds AI-generated. Our detector helps you maintain authenticity, strengthen reader trust, and publish high quality content.

SEO Professionals & Digital Marketers

Ensure every article, landing page, and product description meets quality standards before publishing. Our AI detection tool helps you avoid thin, AI-heavy content and maintain strong performance across search engines.

Students & Academics

Verify that your essays, assignments, and research papers reflect your real thinking. Use the detector to confirm originality before submitting work in academic environments.

Writers, Journalists & Freelancers

Protect your voice and writing style. Run drafts through the AI Detector to ensure your articles, scripts, and manuscripts remain genuinely yours, and free of unintended AI patterns.

Teachers & Educators

Quickly review student submissions to check for AI-generated writing. Our detector supports academic integrity by helping educators understand whether assignments were created independently.

Researchers & Technical Writers

Maintain credibility in scientific and professional publications. Use the AI Detector to confirm that your research papers and technical documentation are authentic, accurate, and free of AI-generated text.

Detect AI Text from ChatGPT and Every Other AI Model

Undetectable.ai is more than a ChatGPT detector. It identifies AI written text from Gemini, Claude, DeepSeek, and the main generation of models as they come out, so your detection is always up to date.

Frequently Asked Questions

We've got answers. Explore our Frequently Asked Questions to learn more about how Undetectable AI works, what our guarantee is, and how we can assist you in your content creation journey.

Our detector uses advanced linguistic, semantic, and pattern-analysis models trained specifically to identify AI-generated writing. Independent studies rank our detection model as up to 99% accurate, depending on the language, text length, and writing style.

Our free AI Checker is indispensable for marketers, SEO experts, writers, bloggers, and researchers who need reliable tools to verify the authenticity of content. Whether you're concerned about maintaining originality in creative work or ensuring compliance with ethical standards in content creation, our AI detector provides the necessary insights and analysis to support informed decision-making.

Yes. Our tool is trained specifically to detect ChatGPT, GPT-4, GPT-5-style models, Claude, Gemini, and Llama.

Yes, our Free AI Detector requires no signup and gives instant results. Simply paste your text and click "Check for AI."

Independent tests and industry reviews rank us among the most accurate AI detection tools available.

Yes. Our tool is designed to identify rewritten or obfuscated AI content, including material modified by paraphrasing tools, and other AI rewriters.

You can check essays, blog posts, academic writing, emails, SEO content, research papers, and any long-form or short-form text. The AI Checker supports multi-language detection as well.

Yes. Our tool shows the AI detection probability from major checkers, helping students and professionals understand whether their text could be flagged. You can optionally humanize the text afterward for safer use.

No. Your text is never stored or used to train models. For teams, our Business Solutions include even stricter data retention controls.

Yes. While English is our primary focus, the detector also supports 50+ languages. Multilingual detection and humanization work reliably across all supported languages, with English offering the highest accuracy.

Still have questions?

Can't find the right answers? It's not a big deal. Contact us, and we will answer any questions in no time.

Score as Human in AI Detectors and Use AI Confidently

Join over 21 million users who use Undetectable to safely humanize AI text for work, school, and online publishing. Say goodbye to detection risks and create with confidence.

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