How Do Perplexity and Burstiness Make AI Text Undetectable?

If you’re curious as to exactly how AI-generated text is made undetectable, there are two metrics you need to understand: Perplexity and Burstiness.

Burstiness isn't even an actual word and once you understand Perplexity, you'll know why an AI checker won't flag this article as AI-generated content.

These two terms are essential to understanding the difference between human writing and AI writing and in them, you can get to feel the difference between the organic beauty of the human mind and the mechanical processes of artificial intelligence running an algorithm.

Whether it’s Turnitin, GPTZero, or Originality.AI, AI detectors check for these key watermarks when they determine if the text is AI-generated content. If you want to bypass these AI detection tools, you will need an AI humanizer to give your text the human touch by raising its perplexity and not so much burst out as flow through you.

Table of Contents

• AI Detectors and AI-Generated Content

• Perplexity

• Burstiness

• How To Make Your Writing Human

• Why StealthGPT Is The Best Humanizer on Earth

• Conclusion

• FAQ

When OpenAI created ChatGPT, they had to understand people would use their AI-generated content in place of content created by human professionals. However, the signatures of artificial intelligence are so clear in the text the chatbot generates, that they must not have been intended for that use.

Doing so opened up the market for numerous AI detection services with machine learning to identify those signatures. In response, the rise of undetectable AI software allowed users to bypass AI detection using complex AI language models with natural language processing to teach them how people actually write their emails, essays, social media posts, and articles to emulate in their AI outputs.

When we break down the writing style of machines, we see the process of running an algorithm in action. The same goes for human writers, how the text reads shows how the text was created.

Still, there's a reason why AI checkers like Turnitin, GPTZero, Originality.ai, and more are constantly producing false positives. Natural writing can be lacking in perplexity as much as artificial intelligence in any given sentence.

Think of AI written content and human writing as a Ven diagram with an overlapping section in the middle where the two share elements in their writing styles.

At the end of the day, human writing is a near-spiritual practice. When done in isolation, the naturalness and randomness in which our word choice and sentence structure are formulated in the quiet of our minds are something that has always stumped anyone attempting to analyze it.

As a writer myself, if I close my eyes and think about how I get in tune with the indescribable internal mechanics of my soul, I know there is no resemblance to a machine-crunching code. If you're curious about how the human mind generates content this article will give you food for thought.

Perplexity

AI-generated text will always choose the most commonly used word in a sentence. In other words, one of the watermarks of AI writing is low perplexity in word choice. AI cannot account for the randomness of the human mind, whether in the way it chooses synonyms or the order it winds up. Predictability in diction forms a pattern throughout any piece of text that AI detectors will pick up on instantly if you don’t correct it.

See for yourself just how ChatGPT describes the perplexity of AI-generated text:

Now compare that writing to Stealth Writer’s description of perplexity:

Generative AI is only useful in everyday life if it’s made undetectable and humanized. If you want to see the smartest content-creation-hack humans have available, look up this guide to generating undetectable AI content with Stealth Writer.

Burstiness

The second metric that AI detectors seek out when analyzing a piece of text for hints of generative AI is burstiness.

The way text bursts out of an AI seems a bit rushed, it mirrors the instantaneous process of running the algorithm, almost structuring the sentence so the words are about to crash into each other.

Burstiness relates to the length and structure of a piece of text’s sentences. Generative AI outputs will never give you incomplete sentences or grammatical issues. Human writing ought not to follow those same rules.

Sentence structure and sentence length in AI text will always have a recognizable pattern. You won’t see any experimental tendencies inside the AI language models of ChatGPT’s machine learning.

Check out ChatGPT's definition of burstiness:

Kinda bursts out and clusters concepts, doesn't it? Now let's see the smoothness of StealthGPT's output:

Human writers utilize internal tools chatbots simply don’t have like rhythm or irony. Taught with the right language model though, generative AI can give you undetectable text that no service like Turnitin, GPTZero, or Originality.AI will ever be able to crack.

If you want to dive deeper into how perplexity and burstiness appear in AI generated content vs human writing, read StealthGPT's own Jozef Gherman's article on Forbes.

How To Make Your Writing Human

Google rewards human-written text as high-quality and gives it a helpfulness ranking the more readable it is. Readability is partly a human touch for perplexity and burstiness but it’s also about relatability.

The way we relate to people is by being simple and putting yourself into your writing. So, when I go into diatribes about how I write to make a stark contrast with artificial intelligence to arrive at a greater philosophical point, I’m giving you a slice of myself in the form of “human-written content”.

Our guides on how to make AI-generated content readable and our guide on how to personalize undetectable AI generated text are great help for how to make people want to read our text.

Why StealthGPT is The Best Humanizer on Earth

If you want the most natural language processor available to you to take any generative AI’s text and give it a human touch, StealthGPT is the only option guaranteed to bypass AI detection services like Turnitin, GPTZero, and Originality.AI.

StealthGPT has numerous AI writing tools to help you no matter what kind of content you need. These tools include:

AI Humanizer

Take AI text written by ChatGPT or any chatbot and make it undetectable by humanizing it to make it more perplexing and less bursty with the human touch for dynamic synonyms, randomness, and rhythm.

Stealth Writer

The best place to get undetectable AI-generated content with simple prompts. Whether you want essays, articles, emails, or any piece of text, Stealth Writer always produces undetectable, humanized, original, plagiarism-free AI-generated content.

SEO Writer

There’s no easier way to optimize for SEO and streamline your workflow for content creation than using our SEO Writer to do all the hard work of keyword research for you. If you want your blogs to rank on search engines and bypass all AI content detectors, look no further.

Photo to Answers

A student’s dream come true. Just take a picture of your worksheet and our natural language processors will come up with undetectable answers to any questions appearing in the piece of text.

AI content detection is a technology with an expiration date as StealthGPT shows no signs of slowing down its evolution.

If you want to understand more about how to make ChatGPT undetectable, this article has your ticket.

FAQ

Is Using AI-Generated Text Plagiarism?

No. Whether your AI text comes from ChatGPT or StealthGPT, AI algorithms are trained to always generate original output and never steal or paraphrase other authors. Read our breakdown of Is Using ChatGPT Plagiarism to get the full scoop.

Do AI Detectors Work? Do They Ever Flag Human Writing?

Sometimes. They can catch patterns in simple word choice or sentence length and structure, but they come up with false positives so frequently that most major institutions distrust their use on some level. In fact, read this article about how Vanderbilt disabled Turnitin after it detected so many false positives and biases.

Will AI-Generated Text Written By ChatGPT bypass AI Detection?

No. ChatGPT’s language models have only taught it how to write like a machine. Meaning it uses simple word choice and sentence length and structure. These patterns can be measured by the two major metrics this article is about: Perplexity and Burstiness.

If you use ChatGPT to generate AI text for your content, AI detection tools will catch you. That’s why you need StealthGPT to give your AI text a human touch, so you can actually use AI-generated content for the same purposes you would any kind of human writing.