AiDetector Review: Is It Effective at Detecting AI Content?

In today’s review, we’re diving into AiDetector and testing its accuracy. If you’ve been wondering how reliable it is at spotting AI-generated text, you’re in the right place. 

We’ll go through its strengths, limitations, and whether it can really catch AI writing in different scenarios. 

Stick with me as we break it down to see if it’s the right tool for you.

What Is AiDetector?

AiDetector is an AI content detection tool designed to quickly identify text generated by AI models like ChatGPT, GPT-4, Claude, and many others.

The detector uses algorithms trained on millions of human and AI-generated texts, analyzing factors like perplexity, burstiness, and sentence structure to reliably identify AI-generated content. 

With support for 145+ languages, it ensures accuracy and effectiveness across a wide range of global texts.

How Accurate Is AiDetector?

To evaluate AiDetector's accuracy, we put it to the test with three distinct scenarios. 

We’ll walk you through how each test was conducted, the results, and what those results tell us about the tool’s performance.

Test 1: Pure AI Text

Setup:

For this test, we generated a piece of text entirely with ChatGPT-5. 

This gives us a clear baseline of what "pure" AI writing looks like—text with no human influence whatsoever. 

We chose this test to see how well AiDetector can detect straightforward, AI-only content.

Results:

86% AI

Observations:

An 86% detection rate is a solid result for pure AI text. 

This indicates that AiDetector accurately identified the text as being AI-generated in most cases. 

The high percentage suggests it can effectively pick up on AI's unique writing patterns and structures. 

Test 2: Mixed AI + Human Writing

Setup:

In this scenario, we took a paragraph that was written by a human before ChatGPT’s release. Then, we had ChatGPT-5 continue the paragraph. 

The text now contains 187 words of human writing (41%) and 454 total words, blending AI and human content.

Results:

52% AI

Observations:

The 52% AI detection rate is an interesting result. Given that only 41% of the text was AI-generated, this score seems fairly accurate. However, it also highlights a common challenge for AI detectors: the blending of human and AI text can confuse detection tools, especially when the AI writing is more nuanced.

Test 3: Humanized AI Text by QuillBot

Setup:

For the final test, we used QuillBot's AI Humanizer in advanced mode to “humanize” the pure AI text from Test 1. 

Results:

46% AI

Observations:

QuillBot’s humanization feature likely modified the text sufficiently to confuse the detector, making it harder for AiDetector to identify the AI elements with certainty. 

However, the tool still detected some AI traces, which suggests that while humanization can reduce the likelihood of detection, it doesn't fully bypass AI detection systems. 

Pros and Cons of AiDetector

When evaluating AiDetector, there are several factors to consider based on user experience, performance reviews, and additional features. Here’s a breakdown of its strengths and weaknesses.

Pros:

• Fast Detection: One of the standout features of AiDetector is its speed. It provides results in just 4.8 seconds.

• Detailed Analysis: AiDetector offers a sentence-by-sentence breakdown with confidence scores, helping users understand exactly which parts of the text are flagged as AI-generated.

• Multi-Language Support: The tool supports detection in over 145 languages, which is a significant advantage for global users.

Cons:

• Limited to One AI Detection Tool: While AiDetector performs well, it is a single tool without integration or comparison to other detectors. 

• Struggles with Humanized Text: AiDetector faces challenges when dealing with AI-generated text that humanization tools have processed. These tools alter the text to sound more human-like, making it harder for detectors to flag it as AI-generated. 

AiDetector Pricing

AiDetector offers a completely free service, allowing users to check up to 25,000 characters (approximately 5,000 words) per day without any need for sign-ups or credit card information. 

Can You Bypass AiDetector?

The short answer is no, not completely. While some might try to bypass AiDetector by rewriting or making minor adjustments to AI-generated text, these methods often fall short. 

For instance, simple rewriting or word replacements—like those performed using QuillBot's advanced mode in Test 3—still resulted in text being flagged as 46% AI. 

This is where a professional humanizer becomes essential. EssayDone Humanizer is specifically designed to address this challenge. 

Unlike basic rewriting tools, it goes beyond synonym swapping and alters the linguistic and structural features of the text. It focuses on reshaping sentence flow, phrasing, and rhythm to mimic genuine human writing patterns.

To illustrate its effectiveness, we tested EssayDone Humanizer on the 100% AI-generated text from Test 1.

After humanizing the text, the detection score dropped dramatically from 86% AI to just 30% AI. 

This significant reduction shows that EssayDone Humanizer can successfully lower the AI detection score, making the text much harder to flag while maintaining high readability and authenticity.

Alternatives to AiDetector

FAQ

Is AiDetector 100% accurate?

No, AiDetector is not 100% accurate. While it performs well in identifying AI-generated content, there are scenarios where it might struggle, particularly with mixed or humanized AI text. It relies on algorithms trained to detect specific AI patterns, but sophisticated humanization tools or well-crafted mixed texts may still evade detection to some extent.

How to bypass AiDetector?

Bypassing AiDetector completely is challenging. Simple word replacements or sentence rephrasing may not be enough, as AiDetector is designed to catch common AI writing patterns. For more effective results, tools like EssayDone Humanizer can be used to modify not just words but the overall structure of the text, making it more human-like and harder to detect.

Will my professor use an AI detector?

It’s becoming more likely that professors and educational institutions will use AI detectors, especially as AI writing tools become more prevalent. Many academic institutions have started incorporating AI detection software to ensure the authenticity of student work. However, not every professor may use these tools regularly, so it's still important to be mindful of your writing's originality.

Can I use AI detectors on my own work before submission?

Yes, you can use AI detectors on your own work before submission. This can be a great way to verify that your content is original and free from unintentional AI-generated text. Many detectors, including AiDetector, offer free access with limits on the number of characters or words, so you can check your work before submitting it.

Are AI detectors legal?

Yes, AI detectors are legal. They are tools used to analyze text and assess whether it was written by a human or an AI. There are no legal restrictions on using these tools for academic or professional purposes, and they are commonly used by educational institutions, publishers, and businesses to maintain content authenticity.

Is AiDetector free?

Yes, AiDetector is completely free to use. It allows users to check up to 25,000 characters (approximately 5,000 words) per day without requiring any sign-up or credit card information. This makes it accessible to anyone needing quick, reliable AI detection.

Conclusion

In this review, we’ve looked at AiDetector’s features, accuracy, and limitations. 

While it’s fast and generally reliable, it does face challenges with humanized or mixed AI content. 

I hope this article gives you a clearer idea of how the tool works and whether it meets your needs.