Rated #1 Best AI Detector by Forbes!

“Making AI-generated content more human-like”

“Unrivaled accuracy and writing styles!”

Advanced AI Detector and AI Checker for ChatGPT & More [undetectable AI]

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 TEXT DETECTION TOOL HAS BEEN FEATURED ON…

TRUSTED BY 19,845,944 USERS

66,506 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.

How to Use Our Free AI Detector and AI Checker to Detect AI Content

Watch our 2-minute video tutorial to learn how to use our tool to detect AI-generated content. See how our free AI detector works and explore the AI Humanizer feature to refine your text, ensuring it meets the highest standards of authenticity for work and academic settings.

Identify text from ChatGPT, GPT-4, Gemini, Claude, and other AI writing tools.

Our Advanced AI Detector Instantly Reveals if Major AI Detection Tools Detect Your Text

Skip the hassle of checking for AI with detectors like CopyLeaks, GPTZero, Sapling one by one. Make the process faster and easier by using the Undetectable AI Content Detector. With just one click in "Check for AI", see results from the most popular AI detectors all at the same time, making work and school more efficient.

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 Best AI Detector According to Forbes

Here's what industry leaders 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.

⭐⭐⭐⭐⭐

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

⭐⭐⭐⭐⭐

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.

⭐⭐⭐⭐⭐

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

⭐⭐⭐⭐⭐

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.

⭐⭐⭐⭐⭐

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

⭐⭐⭐⭐⭐

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

⭐⭐⭐⭐⭐

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 and Online Content Writers:

Delivering value and engaging content is essential for digital writers and bloggers. By using our AI writing detector to identify AI-generated content in your articles, you can rest assured that you will engage with readers on a more human level. Maintain authenticity, trust, and credibility with readers by providing a better experience for your readers.

SEO and Digital Marketing Professionals:

Use our AI content detector and flag AI-generated texts to make sure you only publish undetectable, high-quality content. Safeguard your articles and protect your site content from any potential Google penalties by only posting humanized content. Our AI Detector and the AI Humanizer feature is your insurance policy so you can rank high on Google and avoid getting flagged as AI.

High School and University Students:

Submitting original work is essential in an academic setting. Use our AI Detector to eliminate any AI-generated content from your assignments, essays, and reports. This way, you can present authentic work that reflects your knowledge and dedication.

Writers, Journalists, and Freelancers:

Whether you're crafting a novel, a journalistic article, or a screenplay, using natural and original writing is key. Our AI Detector helps ensure your content is free of AI-generated text, helping you preserve your personal style and creativity. And if it doesn't pass? Use our AI Humanizer to remove the chances of your content being detected as AI-generated.

Schools, Teachers, and Educators:

Making sure students understand the importance of original thinking and writing is a must for educators around the world. By using our AI Detector to review student submissions and check for AI content, teachers will know whether or not students are using AI or not. Using the AI Checker helps uphold academic integrity by promoting originality.

Researchers and Technical Writers:

Integrity of written content is crucial for submissions and publications of researchers and technical writers. Our AI Checker helps verify that research papers and scientific articles are submitted with no AI-generated content, helping maintain authenticity and credibility. Ensure academic contributions score as human in AI detector tools by reviewing with our AI Checker first.

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

Awards & Recognition

Our precision in detecting AI-written content hasn't gone unnoticed. As proud recipients of top accolades from Forbes, Tech & Learning, and Yahoo Life, we're leading the frontier in detecting AI-written content.

Discover the Power of an
AI Detection Tool

The most powerful and advanced AI detection tool, built to identify AI-generated content and ensure that your writing remains undetectable by AI detectors.

Our advanced detection algorithms make it simple to identify AI-written text, allowing you to create content that is completely humanized.

Looking for the most accurate Free AI detector?

Your search ends here.

Undetectable AI is renowned for its AI detection capabilities and has been acclaimed by industry experts as the top free AI detector and checker. Our AI detection tool system provides a comprehensive analysis of your content's AI detection probability.

Instead of only being a ChatGPT detector or ChatGPT checker, our tool integrates with both free and paid AI detectors, recognizing text from GPT3, GPT4, Claude, Gemini, Llama and other AI writing tools.

Experience the collective intelligence as our Free AI checker reveals how various AI Content detectors perceive your text.

Undetectable’s AI Detector and Checker Supports Multiple Languages

Our primary focus when building out our tool is English. However, we have secondary multilingual text detection and humanization support for:

(af) Afrikaans
(ar) Arabic
(bg) Bulgarian
(bn) Bengali
(ca) Catalan
(cs) Czech
(cy) Welsh
(da) Danish
(de) German
(el) Greek
(en) English
(es) Spanish
(et) Estonian
(fa) Persian
(fi) Finnish

(fr) French
(gu) Gujarati
(hi) Hindi
(hr) Croatian
(hu) Hungarian
(id) Indonesian
(it) Italian
(ja) Japanese
(kn) Kannada
(ko) Korean
(lt) Lithuanian
(lv) Latvian
(mk) Macedonian
(ml) Malayalam
(mr) Marathi

(ne) Nepali
(nl) Dutch
(no) Norwegian
(pa) Punjabi
(pl) Polish
(pt_br) Brazilian Portuguese
(pt) Portuguese
(ro) Romanian
(ru) Russian
(sk) Slovak
(sl) Slovene
(so) Somali
(sq) Albanian
(sv) Swedish

(sw) Swahili
(ta) Tamil
(te) Telugu
(th) Thai
(tl) Tagalog
(tr) Turkish
(uk) Ukrainian
(ur) Urdu
(vi) Vietnamese
(zh-cn) Chinese (Simplified)
(zh-tw) Chinese (Traditional)

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.

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.

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.

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.

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.

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.

Still have a question?

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 18 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.

Join 18M+ people using Undetectable

Advanced AI Detector and AI Checker for ChatGPT & More [undetectable AI]

TRUSTED BY LEADING ORGANIZATIONS. OUR AI TEXT DETECTION TOOL HAS BEEN FEATURED ON…

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

How to Use Our Free AI Detector and AI Checker to Detect AI Content

Our Advanced AI Detector Instantly Reveals if Major AI Detection Tools Detect Your Text

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

The Best AI Detector According to Forbes

Be More Productive with the Undetectable AI Chrome Extension

See Why Users Love Undetectable AI's Detector Tool

Free AI Detector and Checker:

Collective Results From Multiple Detectors:

Trusted by Professionals and Businesses Alike:

Multi-Language Functionality and Support:

User-Friendly Interface:

Award-Winning Accuracy:

Our AI Content Detector is Perfect for:

Bloggers and Online Content Writers:

SEO and Digital Marketing Professionals:

High School and University Students:

Writers, Journalists, and Freelancers:

Schools, Teachers, and Educators:

Researchers and Technical Writers:

Awards & Recognition

Discover the Power of anAI Detection Tool

Looking for the most accurate Free AI detector?

Undetectable’s AI Detector and Checker Supports Multiple Languages

Frequently Asked Questions

What does Undetectable AI's AI detector do?

Who should use Undetectable AI's AI checker?

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

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

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

Score as Human in AI Detectors and Use AI Confidently

Discover the Power of an
AI Detection Tool