Ever worry your writing isn’t 100% you?
With AI tools everywhere, it’s tough to know if your content truly sounds human.
The problem? AI-generated text can sneak in, making your words feel a bit… off.
This isn’t just about avoiding accidental copy-paste.
But here’s the good news: you can easily check your content for AI footprints.
This article will show you the 9 Best AI Checkers.
You’ll find tools to make sure your writing is original, fresh, and truly yours.
Ready to make your words shine?
Let’s dive in!
What are the Best AI Checkers?
Worried about AI-generated text slipping into your work?
Want to make sure your content sounds genuinely human?
It’s smart to check!
We’ve researched and tested various best AI checkers to help you identify AI writing.
Below, you’ll find our top picks, ranked from best to good, to keep your content original and authentic.
1. GPTZero (⭐4.8)
GPTZero is an AI detection tool.
It helps you find out if a human or an AI wrote text.
Teachers and content creators often use it.
It works by looking at how “random” and “varied” the writing is.
Unlock its potential with our GPTZero tutorial.
Key Benefits
- Accuracy: Offers 99% accuracy for AI detection.
- False Positives: Claims a very low false positive rate (less than 1%).
- Warranty: Comes with a 30-day money-back guarantee.
- Features: Focuses on perplexity and burstiness, user-friendly interface, supports multiple file uploads, offers batch processing for many documents, integrates with learning platforms.
Pricing
All the plans will be billed annually.
- Free: $0/month.
- Essential: $8.33/month.
- Premium: $12.99/month.
- Professional: $24.99/month.
Pros
Cons
2. Originality AI (⭐4.5)
Originality is a tool that checks if a human or an AI writes content.
It also looks for plagiarism.
It helps people like writers and publishers make sure their content is truly original.
It’s designed to be easy to use.
Unlock its potential with our Originality tutorial.
Our Take
Ready to ensure your content is 100% human-generated? Originality AI boasts a 94% accuracy rate in detecting AI-written text. Don’t risk your reputation – Go for Originality AI today!
Key Benefits
- Accuracy: Boasts 98-100% accuracy.
- False Positives: Has a very low false positive rate, around 2%.
- Warranty: Provides a 7-day satisfaction guarantee.
- Features: Detects AI-generated and AI-edited content, includes a powerful plagiarism checker, scans entire websites, supports detection in multiple languages, offers an API for custom integrations.
Pricing
- Pro: $12.95/month.
- Pay-as-you-go: $30 (One time on demand pricing).
- Enterprise: $136.58/month.
Pros
Cons
3. QuillBot (⭐4.0)
QuillBot is more than just a detector.
It helps you rephrase text.
Its detector is strong.
It finds AI-made content.
It also helps humanize text.
Unlock its potential with our QuillBot tutorial.
Our Take
Ready to transform your writing? Over 50 million users have already experienced Quillbot’s powerful paraphrasing capabilities. Explore it now!
Key Benefits
- Accuracy: Achieves around 90% accuracy for general AI detection.
- False Positives: Known for a reasonable false positive rate, typically under 5%.
- Warranty: Offers a 3-day money-back guarantee on premium plans.
- Features: Distinguishes AI-generated from AI-assisted human text, integrated with paraphrasing and grammar tools, offers free scans for shorter texts, provides detailed analysis reports, easy to use interface.
Pricing
All the plans will be billed annually.
- Free: $0/month.
- Premium: $4.17/month.
- Team Plan: Custom pricing based on your needs.
Pros
Cons
4. Winston AI (⭐3.8)
Winston AI is a tool designed to find out if text was written by a human or an AI.
It also checks for plagiarism. It’s built for content creators, publishers, and educators.
It gives you a score showing the probability of AI authorship.
Unlock its potential with our Winston tutorial.
Key Benefits
- Accuracy: Claims an impressive 99.98% accuracy.
- False Positives: Reports a near-zero false positive rate.
- Warranty: Includes a 14-day refund policy.
- Features: Detects AI content from various models like GPT-4o and Gemini, includes an optical character recognition (OCR) feature, offers AI image detection, provides batch processing for bulk checks, has a clean, intuitive design.
Pricing
- Free: $0/month.
- Essential: $10/month.
- Advanced: $16/month.
- Elite: $26/month.
Pros
Cons
5. Smodin (⭐3.5)
Smodin is a suite of AI writing tools.
It includes an AI rewriter, content generator, and plagiarism checker.
It aims to help users create unique and original content quickly.
It’s often used by students, writers, and marketers.
Unlock its potential with our Smodin tutorial.
Key Benefits
- Accuracy: Provides around 95% accuracy for AI content.
- False Positives: Has a low false positive rate, typically 3-4%.
- Warranty: No specific warranty mentioned; relies on subscription terms.
- Features: Combines AI detection with plagiarism checking, supports multiple languages, offers a content rewriter tool, includes a citation generator, good for academic and research papers.
Pricing
All the plans will be billed annually.
- Writing: $9/month.
- Reviewing: $15/month.
- Ultimate: $18/month.
Pros
Cons
6. Quetext (⭐3.3)
Quetext is a tool primarily focused on plagiarism detection.
It also offers an AI content detector.
It helps users, especially students and copywriters, ensure their writing is original.
It compares your text to billions of online sources.
Unlock its potential with our Quetext tutorial.
Key Benefits
- Accuracy: Delivers approximately 92% accuracy in AI detection.
- False Positives: Maintains a low false positive rate, around 4%.
- Warranty: No explicit warranty; focuses on subscription service.
- Features: Uses “DeepSearch” technology for thorough analysis, highlights both AI and plagiarized content, offers a clear, color-coded report, provides a citation assistant, good for academic and journalistic integrity.
Pricing
All the plans will billed annually.
- Free: $0/month.
- Enterprise: $11.99/month.
- Essential: $13.99/month.
Pros
Cons
7. Undetectable (⭐3.2)
Undetectable helps you humanize AI text.
It also detects AI content.
It’s useful for SEO.
It helps bypass filters.
Unlock its potential with our Undetectable tutorial.
Our Take
Give Undetectable AI a try! It bypasses 98% of AI content detectors, ensuring your AI-generated text goes undetected. Explore it today!
Key Benefits
- Accuracy: Offers up to 90% accuracy in detecting AI.
- False Positives: Claims a low false positive rate, about 5%.
- Warranty: No specific warranty; subscription-based.
- Features: Focuses on humanizing AI-generated content, checks against various AI detectors, aims to bypass common AI filters, useful for SEO and content marketing, simple and straightforward interface.
Pricing
- Yearly: $5/month.
- Monthly: $19.00/month.
- For Business: Custom pricing based on your needs.
Pros
Cons
8. Phrasly AI (⭐3.0)
Phrasly AI is an AI writing assistant that focuses on “humanizing” AI-generated content.
It also includes an AI detector and a content generator.
Its main goal is to help users make AI text sound more natural and bypass AI detection systems.
Unlock its potential with our Phrasly tutorial.
Key Benefits
- Accuracy: Provides around 88-90% accuracy for AI detection.
- False Positives: Reports a moderate false positive rate, around 6%.
- Warranty: Not explicitly stated; service is subscription-based.
- Features: Specializes in making AI content undetectable, offers an AI rewriter, provides readability scores, quick and easy to use, aims to help content rank better.
Pricing
- Free: $0/month.
- Unlimited: $12.99/month.
Pros
Cons
9. Grammarly (⭐2.8)
Grammarly is a popular writing assistant that helps you improve your grammar, spelling, punctuation, and clarity.
It also offers an AI content detector and a plagiarism checker.
It’s widely used by students, professionals, and anyone who writes online.
Unlock its potential with our Grammarly tutorial.
Our Take
Want expert-level writing? Grammarly Premium’s plagiarism checker scans 16+ billion web pages, ensuring originality. Explore it today!
Key Benefits
- Accuracy: Offers strong AI detection, often around 90-92%.
- False Positives: Maintains a low false positive rate, generally under 5%.
- Warranty: Standard subscription terms apply, no specific warranty.
- Features: Integrates AI detection with grammar and spelling checks, provides plagiarism detection, offers real-time feedback, available as a browser extension, helps improve overall writing quality.
Pricing
All the plans will be billed annually.
- Free: $0/month.
- Pro: $12/month
- Enterprise: Custom pricing based on your needs.
Pros
Cons
What to look for when buying an AI checker Software?
When choosing an AI checker, keep these essential points in mind to make the best decision for your needs:
- Accuracy is paramount: How often does it correctly identify human vs. AI text? Look for tools that share their false positive rates.
- Updates and evolution: AI technology changes fast. A good AI checker should get regular updates to keep up with new AI models and generative AI patterns.
- User experience: Is it easy to use? You want a tool with a clean interface and clear results, not something that complicates your workflow.
- Integration capabilities: Can it work with your existing tools, like Google Docs or Microsoft Word? Seamless integration saves time.
- Specific purpose: Are you checking academic papers, blog posts, or marketing copy? Some tools are specialized and perform better for certain content types.
- Transparency: Does the tool explain why a piece of text is flagged? Understanding the reasoning helps you refine your content more effectively.
- Support and resources: If you have questions, is there reliable customer support or helpful guides available? Good support is crucial for any tool.
How can Best AI Checkers benefit you?
AI checkers are vital tools for today’s content creators.
They help you keep your unique voice, making sure your writing is truly yours, not generated by a machine.
This builds trust with your audience & protects your reputation.
In a world full of AI text, standing out means being genuinely human.
These tools spot subtle AI patterns, helping you refine your content.
This leads to better search rankings and more impactful communication.
Ultimately, AI checkers give you confidence that your content is original, high-quality, and authentic.
Buyers Guide
To determine the best AI checkers, our research followed a comprehensive approach, focusing on key factors critical to user satisfaction and effectiveness.
Here’s how we conducted our research:
- Initial Keyword Search: We began by performing extensive searches using terms like best AI checker, AI detector tool, human written content, AI detectors, AI content checker, detect AI content, human written text, AI detector tools, free tool, AI detection model, detect AI generated images, and human written to identify a broad range of available tools.
- Pricing Analysis: We meticulously evaluated the pricing structure of each product, comparing costs to assess overall value and identify affordable options.
- Feature Comparison: A detailed examination of features was conducted to highlight unique functionalities, accuracy in detecting AI-generated content, and the ability to differentiate from human-written content. We looked for features that genuinely helped users detect AI.
- Identifying Negatives/Limitations: We actively sought out what was missing from each product, including limitations in detection, user interface issues, or lack of specific functionalities that would improve the user experience.
- Support and Refund Policies: We investigated the availability of customer support, community forums, and refund policies to understand the level of user assistance and satisfaction guarantees offered by each provider.
Wrapping Up
We’ve covered the best AI checkers to help you ensure your content is truly yours.
In a world full of ChatGPT and other generative AI, your work mustn’t be just written by AI.
An AI content detector helps you maintain authenticity.
Our research helps you choose the best detection tool.
While no ai detection tool is perfect, using an accurate ai solution from this list.
Like those that handle ai models from winston ai to gptzero—is crucial for ai content detection.
This keeps your message clear and your voice strong.
Frequently Asked Questions
What is the most accurate AI checker?
Winston AI and Originality.ai are widely considered the most accurate tools on the market. They boast detection rates above 99%, effectively identifying content from GPT-4, Claude, and Gemini. However, accuracy can vary based on the text length and complexity.
Are AI detectors 100% accurate?
No, they are not. While top-tier tools are highly precise, false positives still occur. Human writing, especially from non-native speakers or in technical fields, can sometimes trigger a false flag. Always use them as a guide, not absolute proof.
Is there a free AI detector?
Yes, several reputable options exist. Quillbot, GPTZero, and CopyLeaks offer free versions or trials that are excellent for quick checks. While they may lack the depth of paid enterprise tools, they are sufficient for most casual users.
How can I check if something was written by AI?
Use a dedicated detection tool like Winston AI or Originality.ai for the best results. Manually, look for repetitive sentence structures, a lack of personal anecdotes, and overly perfect grammar. AI often lacks the nuance and “soul” of human storytelling.
Which AI detector is closest to Turnitin?
CopyLeaks is frequently cited as the closest alternative to Turnitin, sharing similar enterprise-grade technology. For web publishers and content creators, Originality.ai offers comparable rigor in detecting AI-generated text.
Is the Quillbot AI detector accurate?
Quillbot’s detector is a solid free option for catching basic AI patterns. It is reliable for unedited ChatGPT outputs. However, it may struggle more than premium tools when facing highly “humanized” or heavily edited AI content.
What is the best undetectable AI?
Tools like Undetectable.ai and StealthWriter are designed specifically to bypass detectors. They rewrite AI content to mimic human variation. Note that using these tools to deceive academic or professional institutions is generally unethical.
More Facts about AI Checker
- TraceGPT achieves very high accuracy scores. It is powerful enough to read very long papers that have over 300,000 characters.
- Winston AI needs you to type at least 500 characters for it to work. It gives you a score from 0 to 100 that shows whether a human or a computer wrote the text. It also claims to be 99.98% accurate and can read text inside images.
- Hive is a special tool because it can spot AI in pictures, videos, and audio clips, not just in writing. It is free to use, and you do not need to create an account.
- GPTZero analyzes text in 7 ways to determine whether it is fake. It gives a detailed report on how easy the text is to read. It also has a free plan that lets you scan a limited number of words each month.
- Originality AI is a paid tool for professional writers that costs about $14.95 a month. It uses two different checking methods, Standard and Turbo, to detect AI-generated writing and plagiarism.
- Scribbr is often recommended for important school papers because it uses the same strong database as Turnitin, which is the main tool used by schools and universities.
- QuillBot is a popular tool that can rewrite text to sound more human. It also has a free AI detector. In one test, it achieved 78% accuracy and identified all text written by ChatGPT.
- Copyleaks is very good at detecting AI-generated text, even if the writer changes the words or translates them into another language.
- Paperpal is built for science and school writing. It scans your work against billions of web pages and articles to check for copying.
- Smodin offers a free plan, but it limits you to 5 uses per week.
- Grammarly is primarily used to fix spelling and grammar errors. It has an AI checker, but it is considered just “okay” compared to other specialized tools.
- Accuracy Varies: Not all AI catchers are the same. By 2026, the best tools claim to be over 95% accurate, but others still make mistakes.
- Tricking the Tools: Sometimes, simple spelling mistakes or “mixed” writing (where a human edits AI text) can fool these detectors.
- False Alarms: Many detectors sometimes mistake human writing for AI-generated writing. This is called a “false positive.”
- New AI Models: It is hard for detectors to catch up with new, smart AI programs like Claude. As AI gets smarter, the detectors have to get smarter, too.
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