How Do AI Detectors Work? An Easy Guide for Beginners!

With the rise of AI writing tools, there is a growing concern about the authenticity of the content generated by these tools. This is where AI detectors come into play. 

Bu how do AI detectors work? Are they reliable? How to bypass AI detection?

In this guide, we will answer all these questions and more!

Let’s dive right in!

What is an AI Detector?

How do AI Detectors Work
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An AI detector is a tool designed to identify whether a text has been partially or entirely generated by AI. It analyzes the characteristics of the text to determine the likelihood of it being AI-generated. 

AI detectors have become essential in various domains, such as education, publishing, recruitment, and social media moderation, where the authenticity of content is crucial.

How Do AI Detectors Work?

AI detectors, also known as AI writing detectors or AI content detectors, use language models similar to the ones used in AI writing tools. They analyze the characteristics of a text to determine if it has been partially or entirely generated by AI.

AI detectors ask themselves, “Is this the type of text that I would have written?” The AI detection tools look for specific characteristics in the text, such as perplexity and burstiness.


Perplexity measures the predictability or unpredictability of a text. AI language models aim to produce texts with low perplexity, which means the text makes sense and reads smoothly. However, human writing tends to have higher perplexity due to more creative language choices and occasional errors.

AI detectors consider low perplexity as an indication of AI-generated text. For example, a text with repetitive language patterns and predictable sentence structure will have low perplexity, suggesting that it is likely AI-generated


Burstiness refers to the variation in sentence structure and length within a text. AI-generated text tends to be less “bursty” than human-written text. AI models often produce sentences of average length and conventional structures, which can make the text appear monotonous.

In short, a text with low burstiness is more likely to be AI-generated. Therefore, AI detectors will identify these patterns and use them as evidence of AI content.

Reliability of AI Detectors

While AI detectors provide a useful indication of whether a text is AI-generated, it is important to note that they are not 100% accurate. The reliability of AI detectors depends on various factors, such as the length of the text, whether the AI output was edited or paraphrased, and the specific tool used for detection.

Research into the best AI detectors has shown that no tool can provide complete accuracy. The highest accuracy found was 84% in a premium tool or 68% in the best free tool. Therefore, it is advisable not to solely rely on AI detectors as definitive evidence of AI-generated content.

AI detectors can also misidentify human-written text as AI-generated if it matches the criteria of low perplexity and burstiness. Additionally, people may intentionally manipulate AI writing to make it less detectable, but this can make the text appear suspicious or inappropriate for its intended purpose.

How to Pass AI Detection

1. Use Rewriter Tools

Rewriter tools are online applications that help rewrite content while maintaining the original meaning. You can use them to create unique content from existing articles, without triggering plagiarism detectors. However, rewritten content may not always be of high quality and may require editing to ensure factual accuracy.

You may also like: Chatsonic AI: Best AI Writer Tool?

2. Use AI Writers with Anti-AI Detection Capabilities

How does an AI Detect Work
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AI writers with anti-AI detection capabilities are advanced writing assistants that can generate high-quality content while avoiding detection by other AI systems. These tools have techniques such as randomization and obfuscation to create content that appears natural and human-like.

What tools have anti-ai detection?

Content generated by AI tools like Writesonic and Jasper are likely to bypass AI detection tools.

You may also like: Writesonic vs Jasper: What’s the Best AI Writer?

3. Edit AI Content or Hire Human Writers

Sometimes, manually editing AI content by rewriting and rephrasing sentences can help you pass AI detectors. Yes, it’s never encouraged to immediately publish content generated by AI without minimum editing.

4. Insert Punctuation Randomly

Inserting punctuation randomly can help create unique content that appears natural and human-like. Try to vary the placement of punctuation marks, like commas and periods This will help your AI-generated content avoid detection by plagiarism checkers and other AI systems.

5. Incorporate Conversational Style Prompts with Literary Devices

By incorporating conversational style prompts with literary devices, AI-generated content can appear more natural and engaging. This approach involves using techniques such as metaphors, analogies, and rhetorical questions to create a conversational tone and keep the reader engaged.

AI Detectors vs. Plagiarism Checkers

AI detectors analyze the characteristics of a text to detect AI-generated content. They measure perplexity and burstiness, looking for patterns that suggest AI generation. On the other hand, plagiarism checkers compare text against a database of previously published sources to identify potential copying.

It is worth noting that plagiarism checkers may flag AI-generated content as partially plagiarized because AI writing often draws on sources without proper citation. However, plagiarism checkers are less effective at detecting AI writing compared to dedicated AI detectors.

Can Google Detect AI Content?

Yes, Google can detect AI-generated content. It can detect certain patterns, text structure, grammar, inconsistencies, or low-quality content that could indicate the use of AI.

Thus, it’s important to ensure that AI-generated content follows best practices and guidelines to maintain a high level of quality and relevance.

Is AI Content Bad for SEO?

AI-generated content can be both good and bad for SEO, depending on how you use it.

On one hand, AI can generate high-quality, relevant, and engaging content that can improve search engine rankings. However, if AI content lacks originality, is over-optimized with keywords, or lacks a human touch, it can negatively impact SEO.

Therefore, it is important to strike a balance by using AI to assist in content creation while making human editors review and refine the content. 

But ultimately, the quality and relevance of the content, whether AI-generated or not, determine its impact on SEO.

4 Good AI Content Detectors

1. is an AI-powered content detection system that not only identifies and flags plagiarism in written content. It can also determine whether a piece of content was written by a human or generated by AI.

It can detect content generated by language models like ChatGPT, GPT-4, and Bard

By analyzing various aspects of the text, such as patterns, grammatical consistency, and choice of words, can determine the origin of the content, helping users maintain integrity and ensure the authenticity of their work.

2. Content at Scale AI Detector

Content At Scale AI Detector is a powerful tool that can accurately detect content generated by various AI models such as ChatGPT, GPT4, GPT3, Bard, and Claude. Unlike other free AI content detectors that are often hit or miss, the AI detector gives reliable and precise identification of AI-generated content

3. GPTZero

GPTZero is another good AI content detector. Like most AI detectors, it looks for inconsistencies in the text that suggest that it was not written by a human. For example, AI-generated text may sometimes repeat the same phrases or sentences multiple times.

4. Undetectable AI

Undetectable AI is a powerful tool designed to humanize AI-generated content to make it undetectable by AI content detectors. It goes beyond simple paraphrasing or spinning and creates high-quality content that cannot be flagged.

There are other incredible detectors that I haven’t mentioned here, like Crossplag AI and Copyleaks AI. Test all of them and choose the one that constantly helps you improve your content.

AI Detectors in Different Fields

AI detectors have various applications across different fields. Let’s explore how they are used in specific domains:


Education and AI
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In the field of education, AI detectors are used by educators to verify the authenticity of students’ work. These detectors help ensure that students are not relying solely on AI writing tools and are genuinely producing their own work.

You may also like: Jenni AI Review: The Best AI Writer for Writers and Students?


Publishers utilize AI detectors to ensure that the content they publish is human-written and not AI-generated. This helps maintain the credibility and quality of published materials.


Recruiters can employ AI detectors to assess the authenticity of candidates’ cover letters and writing samples. This ensures that candidates are submitting their own work and not relying on AI-generated content.

Social Media Moderation

AI detectors play a crucial role in identifying AI-generated spam, fake news, and other forms of automated misinformation on social media platforms. Moderators can use these detectors to distinguish between authentic user-generated content and AI-generated content.

Detecting AI Writing Manually

Apart from using AI detectors, there are certain manual techniques to detect AI-generated writing. While these techniques are not foolproof, they can help in spotting potential AI-generated content:

  • Look for monotonous text with little variation in sentence structure and length.
  • Pay attention to predictable and generic word choices.
  • Identify overly polite language and excessive use of hedging phrases.
  • Watch for inconsistencies in voice and style, especially if the writing deviates significantly from the writer’s usual style.
  • Check for unsourced or incorrectly cited claims, as AI-generated content may lack proper citations.
  • Look for logical errors, contradictions, or implausible statements within the text.

By familiarizing yourself with the characteristics of AI-generated writing and comparing it to human-written content, you can develop an instinct for detecting potential AI-generated text.

You may also like: How to Make AI Content Undetectable?

The Future of AI Detectors

As AI technology continues to improve, detecting AI-generated content will become more challenging. AI models are becoming sophisticated, making it harder to distinguish between AI-generated and human-written content.

However, researchers are constantly working on improving AI detectors to keep up with evolving AI writing tools. The development of statistical watermarking and other advanced detection techniques may help in identifying AI-generated content more accurately.

Use AI Detectors to Improve Your Content

AI detectors are important tools for identifying content generated by AI, but they are not infallible. These detectors analyze text characteristics such as perplexity and burstiness to determine the likelihood of AI generation. 

While AI detectors give useful indications, they should not be solely relied upon, as their accuracy is not 100%.

By combining AI detectors with manual techniques and a critical eye, you can enhance the ability to detect potential AI content. As AI technology advances, the future of AI detectors will continue to evolve, ensuring the authenticity and credibility of content in various fields.

Piaff Dibota

Piaff Dibota, an AI enthusiast and seasoned blogger, blends expertise in AI tools, project management, and blogging. Passionate about exploring innovative applications, Piaff combines practical insights with a strategic approach. Beyond the tech realm, he enjoys reading manga, personal development books and watching funny videos.

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