Free AI Content Detector

Detect AI-generated text with advanced detection technology. Analyze up to 50,000 characters instantly.

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Paste any text to check if it was written by AI or a human. Works best with at least 250 words.

How AI Detection Works

Paste Text

Copy and paste any text you want to analyze. Works with articles, essays, reports, and more.

AI Analysis

Advanced algorithms analyze perplexity, burstiness, and other linguistic patterns to detect AI content.

Get Results

Receive instant AI probability scores with sentence-level breakdowns and detailed metrics.

Frequently Asked Questions

How accurate is the AI detector?

Our tool uses advanced detection algorithms trained on millions of human and AI-written texts. While no AI detector is 100% accurate, our technology provides reliable detection across various content types.

What is perplexity and burstiness?

Perplexity measures how predictable text is - AI writing tends to have low perplexity. Burstiness measures variation in sentence structure - humans write with more variation. Together, these metrics help identify AI-generated content.

Can I use this tool for plagiarism detection?

This tool specifically detects AI-generated content, not plagiarism. If you're looking to detect copied content from other sources, you'll need a dedicated plagiarism checker.

Is my content stored or shared?

No. The text you analyze is processed for detection but is not stored or shared. We do not retain analyzed documents.