How AI Detection Works
Our platform uses two core metrics rooted in computational linguistics to differentiate between human and AI-generated text.
Perplexity
How Predictable Is the Text?
Perplexity measures how surprising or unpredictable a piece of text is. Think of it like this: when you read a sentence, some words are easily guessable, while others are unexpected. AI-generated text tends to pick the most probable next word, resulting in low perplexity.
"The cat sat on the mat and looked at the door."
"The old tabby sprawled across the welcome mat, one eye suspiciously tracking the mailman."
Burstiness
How Varied Is the Sentence Structure?
Burstiness looks at the variation in sentence structure and complexity. Humans write with a natural rhythm: short punchy sentences mixed with longer, flowing ones. AI tends to be more uniform, keeping sentences at a consistent, predictable length.
Uniform sentence lengths
Varied sentence lengths
The Detection Process
From input to insight in milliseconds.
Input Text
Paste or upload your content for analysis.
Tokenization
Text is broken into tokens for granular analysis.
Deep Analysis
Perplexity and burstiness are computed per sentence.
Score & Report
You receive a probability score with sentence highlighting.
How Humanization Improves Your Content
Our humanizer works by analyzing the exact patterns that AI detectors look for and rewriting them. It increases perplexity, adds burstiness, and diversifies vocabulary—all while keeping meaning intact.
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Replaces predictable phrasing with natural alternatives
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Introduces sentence length variation (burstiness)
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Preserves original meaning and context
"The implementation of machine learning algorithms enables unprecedented levels of efficiency."
"Using smart machine learning, we've been able to work way faster than before."
Ready to see the science in action?
Try our AI detector for free and experience the power of perplexity and burstiness analysis firsthand.
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