Individuals and businesses widely use artificial intelligence tools like ChatGPT, Jasper, and Grammarly to generate text. However, many attempt to pass off AI-generated content as their own, violating ethical AI usage guidelines that require transparency. To counter this, we use AI detectors, which are not entirely accurate and may occasionally flag human-written text as AI-generated.

Tools like Undetectable AI claim to bypass AI detection for human and AI-generated content. But does it live up to the hype? This article provides an honest, firsthand review of Undetectable AI, covering its features, efficiency, pricing, and more.

What Is Undetectable AI?

Undetectable AI is a tool designed to bypass AI detectors for AI-generated and human-written content. It also includes an AI detector that checks your content against AI chatbots with primary AI detection tools like GPTZero, OpenAI, Quillbot, Copyleaks, Sapling, Grammarly, and ZeroGPT. The tool provides an aggregated score for better insights.

This tool rephrases your content to make it 100% human-like, reducing the chances of being flagged as AI-generated. Plus, its AI Humanizer offers customization options to match the content’s style and tone to your specific needs. You can adjust readability, purpose, and the level of humanization to suit your use case.

Key Features Of Undetectable AI

Undetectable AI stands out with the following features:

• AI Content Detection: The tool detects AI-generated text by combining scores from free detectors like Copyleaks and Quillbot. Our test with ChatGPT-generated text flagged the content as 100% AI-generated for some free AI detectors, like Quillbot, and 50% for others. We verified this by checking directly in Quillbot, marking it as AI-generated.
• Advanced Humanization Feature: Once a text is flagged as AI-generated, undetectable AI lets you use its advanced humanization features. This feature uses machine learning to rephrase the content to make it human-like. It is helpful for anyone using AI to generate content but wanting it to appear natural.
• Multiple Language Support: While primarily focused on English, the tool supports several other languages through its multilingual detection and humanization features. However, our testing showed these features are less reliable, likely because they aren’t a primary focus.
• User-Friendly Interface: The tool’s interface is simple and easy to navigate, even if you’re unfamiliar with similar tools. It organizes menus neatly, and on the humanizer output page, you can easily compare the humanized text with the original AI version.
• Customization Options: Undetectable AI lets you adjust the text’s style, tone, and readability. You can tailor it to your needs, such as marketing, journalism, or academic writing.
• API Support: The tool also offers API support. This makes it easy for developers to integrate its detection and humanization features into their applications.

Pros And Cons Of Undetectable AI

Pros

• All-in-one detection tool: It shows AI results from multiple AI detectors, giving a clear overview of AI likelihood in your text from different sources.
• User-friendly interface: It is simple and easy to navigate, even for beginners.
• Quick and humanized text: It humanizes AI texts fast and efficiently by rephrasing content to make it feel natural.
• Bypass AI detection: Lowers the chances of content being flagged as AI-generated, regardless of whether it was created by AI or written by a human.
• Customization options: Let you adjust the text style, tone, and readability to suit your needs.
• Flexible pricing: Offers pay-per-word plans, making it accessible for different budgets.

Cons

• Limited free features: The free version doesn’t offer much functionality.
• Expensive premium plan: The cost of advanced features might not suit everyone.
• Doesn’t show detected AI parts: Unlike tools such as Quillbot, it doesn’t highlight which parts of the text are flagged.
• Humanized text needs more editing: While your writing remains undetectable, the rephrased content often needs additional edits to refine and make it up to standard.

How Does Undetectable AI Work?

Undetectable AI uses a simple, step-by-step process to analyze and refine your text. As previously mentioned, its AI detection tool scans the text you provide for any words or wordings considered AI-generated using an algorithm. It also integrates results from other AI detectors, giving you multiple scoring options.

After the scan, you can click the ‘humanize’ button to use its AI detection remover to transform the flagged AI-written content. The AI text humanizer rephrases and restructures your text to make it feel natural and align with human writing patterns. This process removes the markers that AI detectors typically look for, ensuring your content is undetectable.

The tool offers basic and undetectable models for paraphrasing, which are helpful AI applications. The undetectable model performs better in bypassing major AI detectors and improves readability for rephrased content.

Performance and Accuracy

Undetectable AI rephrases content to bypass AI detection, with a fast turnaround time for AI detection and humanizing features. But, the rephrased text often needs human editing to ensure it sounds natural and contextually accurate.

In comparison to alternatives like Duey.ai, Undetectable AI is more reliable. During testing, Duey.ai failed to detect AI in text, rating it as 0% AI, while Undetectable AI accurately flagged it across many AI detectors. Undetectable AI’s humanizer produced better, more natural results than Duey.ai’s, which fell short in quality.

The tool works well for users who want their AI-generated content to appear human-written, such as students or businesses. While it effectively bypasses primary AI detectors, manual review remains necessary to ensure the output fits the required tone and clarity.

Pricing and Plans

Undetectable AI offers the following pricing options:

• Free Trial: Limited free use
• Monthly Plan: $14.99 per month, offering 15,000 words limit high-quality, legible content and unlimited access to the Human Auto Typer and AI Detecting tools.
• Yearly Plan: $5.00 per month, billed annually at $60, providing 10,000 words per month with a 50% discount and includes all features of the Monthly Plan, plus six additional months free.
• Business Plan: Custom pricing, offering non-expiring credits, redistribution and white-labeling options, priority support, and unlimited use of the Human Auto Typer and AI Detecting tools.

Alternatives to Undetectable AI

1. AI Checker Pro

AI Checker Pro is a solid alternative to Undetectable AI for detecting and humanizing content. It has a simple interface where you can paste text or upload a PDF to check for AI and rephrase it into human-like content. However, you must sign up to use it. In our test, its detection worked, but it was flawed. Also, its rephrased text was still flagged as AI. This could be because we used the free “Easy” mode instead of the paid “Aggressive” option.

The Good:

• Seamless AI detection and removal. Easily identifies and removes AI markers from text.
• Supports PDF upload. Allows users to upload and process PDFs directly.
• Flexible and affordable pricing. Offers cost-effective plans to suit different needs

The Bad:

• AI detection feature is unreliable enough. AI content may not always be flagged accurately.
• No text customization feature for text humanization. Lacks options to adjust the tone or style of rephrased text.

Key Features 

• AI Detection: AI Checker Pro’s AI detection feature scans and accurately identifies AI-generated content. It integrates results from various AI detectors to give a comprehensive analysis.
• AI Humanization: This feature enables you to transform AI-generated text into human-like content, making it more readable and natural. It rephrases the text while retaining its original meaning.
• PDF Upload Support: AI Checker Pro supports uploading PDFs for AI detection. This allows users to scan and analyze content directly from documents, making it convenient and efficient for reviewing larger files.

AI Capabilities 

AI Checker Pro features an advanced algorithm for AI detection and humanization, but its capabilities are limited. It offers straightforward and aggressive modes for both functions, with the aggressive mode providing more advanced options. Our testing with the easy mode did not yield the desired outcome.

Pricing 

• Free Plan: $0 monthly, including AI detection, file upload checks, and detailed PDF reports. Transform up to 1,000 words with the AI Humanizer.
• Max Plan: $7.99 per month. Analyze up to 100,000 words, 100 file upload checks, and transform up to 30,000 words with the AI Humanizer. Cancel anytime.
• Lifetime Plan: $99.99 (discounted from $399.99) for lifetime access. offering unlimited AI detection, file uploads, and transformations. Includes detailed PDF reports, full history access, and the ability to cancel anytime.
• Add-On Plan: For an additional $0.99, boost your writing with 10,000 Detector words for 24 hours. You can also unlock 10,000 Humanizer words for the same price. Alternatively, for $1.49, enjoy 10,000 extra Detector and Humanizer words for 24 hours, enhancing your productivity.

Who’s This Site For 

AI Checker Pro is ideal for a variety of users, including bloggers, content writers, college students, and academic professionals. This tool improves AI-generated blog posts, academic papers, marketing materials, or content for any other project.

Why We Picked This

While this tool may not have any special features compared to its alternatives, it makes AI detection and humanization straightforward. Plus, its flexible pricing options make it accessible to budget-conscious users.

Visit AI Checker Pro

2. Humanize AI Tool

Humanized AI is another undetectable AI alternative that helps turn your AI-generated content or text flagged as AI into humanized text. This AI humanizer tool doesn’t come with an AI content detector feature like Undetectable AI, but it has several humanization modes based on how you want its output to be. Its Ultra run mode boasts that it helps turn text to 0% AI-generated, based on our testing. It even highlighted the changes it made in the text so you can be aware. It’s one of the most accurate free AI detectors you can get.

The Good:

• Easy to use. The intuitive interface makes it accessible even to beginners.
• Accurate AI humanization. Transforms flagged AI text into human-like content effectively.
• Different output modes. Offers multiple modes to suit various needs and preferences.

The Bad:

• It doesn't have an AI detector feature. It cannot detect AI-generated content.
• Pricey premium plan. The premium plan may be expensive for some users, especially those on a budget.

Key Features 

• Ultra run mode. Ensures 100% humanized content, removing all traces of AI-generated text.
• History. Keeps a detailed usage record, allowing easy access to past transformations and analyses.
• Different output modes. This feature offers various options, such as shortening, expanding, and informalizing, providing flexibility in text customization.
• Highlighting changes. Shows changes made in the humanized text, providing transparency and clear visibility of modifications.

Customization 

Like Undetectable AI, Humanize AI allows you to choose from a variety of humanization styles, including Academic, Formal, and Informal. This level of customization is among the best features available for an AI humanizer.

AI Capabilities 

Humanize AI uses an advanced algorithm to humanize text by rewording it to remove AI markers and replace them with natural, human-like phrasing. It also offers different modes to adjust the text style according to your preference.

Pricing 

• Free Plan. $0/month. Allows you to process up to 3,000 words, 300 words per process, all modes, and customer support.
• Lite Plan. $19/month. Allows you to process up to 20,000 words, 500 words per process, all modes, and continuous improvements.
• Standard Plan. $29/month. This plan allows you to process up to 50,000 words, unlimited words per process, free re-paraphrasing, and all modes.
• Pro Plan. $79/month. This plan allows you to process up to 150,000 words, unlimited words per process, all modes, and customer support.

Who’s This Site For 

Humanize AI is ideal for anyone looking to transform their text—AI-generated or not—into a 100% human tone that matches their preferred style. Whether you’re a student or a writer using AI to draft content, this tool ensures your writing appears authentically human.

Why We Picked This

Among its alternatives, Humanize AI employs advanced humanization technology to ensure your content remains undetectable as AI-generated.

Visit Humanized AI

3. Rephrasy AI

Rephrasy is another robust and reliable alternative to Undetectable AI. It is an AI detection tool that scans your text and provides an AI detection score from several detectors, such as Turnitin, GPTZero, Copyleaks, Writer, and Originality AI. It also offers an AI humanizer feature to rephrase your text for improved AI detection results.

The Good:

• Easy to use. Intuitive interface for simple navigation.
• Advanced AI detection tool. Scans your text across over 10 AI detection tools.
• Select different styles. Customize the output to fit various needs and preferences.

The Bad:

• Limited free usage. Only a small amount of text can be processed without a paid plan.
• Poor readability with humanized text. May require additional editing for smoother readability.

Key Features 

• AI detection. Uses detection from more than 10 AI detection tools for accurate results.
• AI humanization. You can quickly paraphrase AI texts into human-written ones.

• Create custom humanization style. Tailor output to preferred writing styles.
• Readability score. Assess the ease of reading the humanized text.

Customization 

Humanize AI offers the ability to create custom humanization styles, allowing you to tailor the output to match your desired writing tone and preferences.

AI Capabilities 

With advanced AI detection and humanization tools, Humanize AI ensures your content remains undetectable as AI-generated. It offers features like re-humanizing text and uses over 10 AI detection tools to gauge accurate results.

Pricing 

Rephrasy offers the following pricing options:

• Free Plan. $0/month. 100 word limit per prompt.
• Growth. $14.99/month. Get 100 credits monthly for the AI Detector or Humanizer (2000 words per credit), use the re-humanize feature, Chrome Extension, and 1 custom writing style.
• Business. $21/month. Get 200 monthly credits for the AI Detector or Humanizer (2000 words per credit), use the re-humanize feature, access the Humanizer API, Chrome Extension, and 3 custom writing styles.
• Professional. $39/month. Get 400 credits monthly for the AI Detector or Humanizer (2000 words per credit), use the re-humanize feature, access to the Humanizer API, AI Detector for free, Chrome Extension, and 10 custom writing styles. Unlimited usage of the AI Detector.

Who’s This Site For 

Humanize AI is ideal for students, content creators, marketers, and professionals who use AI-generated content and want to make their writing feel genuinely human. Whether you want to improve your school projects, blog posts, or marketing materials, this tool helps ensure your content reads naturally and engagingly.

Why We Picked This

We chose Humanize AI for its advanced humanization technology, offering customizable settings and strong AI detection features. It allows users to transform AI-generated content into something authentically human, making it a versatile choice for anyone who values the quality and readability of their text.

Visit Rephrasy

Why Choose Undetectable AI Over Others?

Undetectable AI stands out for its superior humanization capabilities and more customizable text options, making it a better choice for avoiding AI detection. Unlike competitors like Duey AI, its outputs consistently feel more natural and human-like.

In terms of pricing, Undetectable AI offers flexible plans that provide better value for money. The monthly plan costs $14.99, while the yearly plan is just $5.00 per month (billed annually at $60). This pricing flexibility is a distinct advantage over its alternatives.

Usability is also a strong point for Undetectable AI, with an intuitive interface and efficient tools for AI detection and content enhancement.

How to Use Undetectable AI?

• Step 1. Visit the Undetectable AI website. Start by heading to the Undetectable AI website for your content analysis.
• Step 2. Run the AI detection process. Upload your content, and click Check for AI to let Undetectable AI’s advanced tools scan it for signs of AI-generated text.
• Step 3. Review detailed results. Take a close look at the results to see which detector flags your content
• Step 4. Use humanization tools for refinement. Click Humanize to apply the AI humanization features to your content, transforming it into a more natural, human-like piece.

FAQs About Undetectable AI

What is the accuracy of Undetectable AI?

Undetectable AI boasts high accuracy in identifying and flagging AI-generated content, leveraging advanced algorithms to ensure reliable results.

Can I use it for free?

You can use Undetectable AI for free, but it has limited features. However, it offers free AI detection and humanization options, making it accessible to everyone.

Is it compatible with other platforms?

While Undetectable AI doesn’t have a dedicated app yet, its web-based nature makes it accessible across platforms, whether on your PC or smartphone through a browser.

Does it support languages other than English?

Yes, the Undetectable AI detector and humanizer supports multiple languages, making it suitable for users who require AI analysis in languages other than English.

Undetectable AI: Conclusion

As our review shows, Undetectable AI is one of the best tools for detecting AI-written content. It also serves as a humanizer, ensuring your content flows naturally and isn’t flagged as AI-generated.

If you’re a writer, student, or academic researcher looking for an AI checker and humanizer, this tool is for you. However, always proofread and edit your humanized text, as they often have poor readability.