An AI Text Detector (also called AI content detector, ChatGPT detector, or AI probability checker) is a tool that analyzes written content to determine whether it is human-written or generated by artificial intelligence like ChatGPT, GPT-4, Bard, Claude, Gemini, or Llama. It evaluates patterns like sentence structure, predictability, word usage frequency, perplexity, burstiness, repetition patterns, and statistical likelihood. It gives an AI probability score (0-100%) that helps you decide whether the text needs revision. Our tool features: instant detection, AI probability percentage, highlighted suspicious sentences, multiple language support, batch processing, API access, and dark mode. Perfect for blog writers, teachers, editors, businesses, and publishers. Our tool processes everything client-side—your text never leaves your browser. No signup required, completely free.

How Does an AI Text Detector Work?

Detection Technology & Algorithms

AI text detection works by analyzing multiple linguistic and statistical patterns. Key factors include:

1. Perplexity: Measures how predictable the text is. AI text has lower perplexity.
2. Burstiness: Measures variation in sentence length. Human writing has higher burstiness.
3. Repetition Patterns: AI models often reuse phrases and structures.
4. Transition Word Frequency: AI uses certain transition words at predictable rates.
5. Paragraph Structure: AI produces uniform paragraphs; humans vary length naturally.

Our tool combines these factors into an AI probability score (0-100%). Results are color-coded: green (0-30% = human), yellow (31-69% = mixed), red (70-100% = AI-generated).

Technical Specifications

1. Processing Speed: Analyzes 5,000 characters in under 3 seconds
2. Text Limit: Up to 10,000 characters per scan
3. Language Support: 15+ languages including English, Spanish, French, German, Chinese, Arabic
4. Accuracy Rate: 85-95% on standard content
5. Detection Models: Supports ChatGPT, GPT-4, Bard, Claude, Gemini, Llama, and more

Why Use Our AI Text Detector?

Key Features & Benefits

Instant AI Probability Score: Get immediate 0-100% probability score with color-coded indicators.

Highlighted Suspicious Sentences: See exactly which parts triggered AI detection.

Multi-Language Support: Detect AI content in 15+ languages.

Batch Processing & History: Upload multiple files, save scan history, export reports as PDF or CSV.

Privacy-First: All detection happens locally in your browser. Your text never leaves your device.

Quick Start Guide

1. Paste your text into the input box (up to 10,000 characters)
2. Click "Detect AI Content" button
3. Wait 2-3 seconds for analysis
4. View your AI probability score with color coding
5. Review highlighted suspicious sentences
6. Export results as PDF or CSV if needed

Pro Tips: Use 250+ words for best accuracy. Combine with manual review for critical decisions. Use batch processing for multiple documents. Bookmark our tool for all your AI detection needs.