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AI Content Detector

Paste any text to estimate if it was written by ChatGPT, Claude, or another AI. Uses 6 linguistic signals — no account required, 100% client-side.

Verified by Expert Editorial Team

Unmasking Machine-Generated Text

As Large Language Models (LLMs) become more sophisticated, distinguishing between human-written and AI-generated content is increasingly important for academic integrity, SEO, and authenticity. Our AI Detector uses advanced statistical models to identify patterns typical of AI output.

How AI Detection Works

AI models tend to produce text with high burstiness (uniform sentence structure) and low perplexity (predictability). Our tool analyzes these factors to provide a probability score.

  • Predictability: AI chooses the 'most likely' next word, leading to a robotic flow.
  • Structure: Human writing often varies in length and complexity, whereas AI often adheres to rigid templates.
  • Contextual Nuance: Humans use idioms, personal anecdotes, and emotional subtext that AI often lacks.

Limitations of AI Detection

While highly accurate, no AI detector is 100% foolproof. Highly technical or structured human writing can sometimes be flagged as AI, and sophisticated AI prompting can mimic human styles. Use this tool as a guide, not an absolute verdict.

Expert Insights & FAQs

Quick answers to common questions about this utility.

3 Frequently Asked Questions
Can this detector identify ChatGPT content?

Yes, it is specifically trained on datasets from GPT-3.5, GPT-4, Claude, and Gemini to identify their unique linguistic signatures.

Will it flag human writing as AI?

Occasionally. This is known as a 'false positive.' It often happens with very formal, academic, or repetitive human-written text.

How do I improve my AI detection score?

To ensure your content is recognized as human, focus on adding personal experiences, unique perspectives, and varying your sentence structures.

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How AI Detection Works

This tool uses statistical and linguistic heuristics to estimate the probability that a piece of text was generated by an AI system like ChatGPT, Claude, or Gemini.

The 6 Detection Signals

  • Sentence Uniformity: AI tends to write sentences of very similar lengths. Humans vary more.
  • AI Transition Phrases: Phrases like "it is worth noting", "in conclusion", "delve into" are disproportionately common in AI output.
  • Vocabulary Diversity (TTR): The ratio of unique words to total words. AI reuses a smaller set of common vocabulary.
  • Passive Voice: AI models default to passive constructions more than human writers typically do.
  • Word Sophistication: AI tends to prefer longer, more formal vocabulary on average.
  • Punctuation Diversity: Human writers use dashes, semicolons, and ellipses more freely; AI output is often more uniform.

Accuracy Note: No heuristic AI detector is 100% accurate. Highly formulaic human writing (academic papers, legal documents) may score high, while well-edited AI output may score low. Use this as an indicator, not proof.

Privacy-First Architecture

100% Local Processing

Unlike traditional online tools, AI Content Detector processes your data entirely within your browser. Your files, numbers, and private info never reach our servers, ensuring absolute confidentiality.

Lightning Fast Speed

By eliminating the need for server uploads and downloads, we provide near-instant results. This technical approach saves bandwidth and provides a seamless user experience on both mobile and desktop.

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