AI Text Detector

Check any text in seconds to see if AI likely wrote it. The detector reviews linguistic patterns, lexical variety, and sentence structure to deliver probability scores. Paste your text or upload a document to get started.
Text to Analyze
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What Is AI Text Detection and Why It Matters

AI text detection helps identify writing produced by large language models (LLMs) such as ChatGPT, GPT-4, Claude, and other AI tools. By assessing lexical diversity, sentence structure, word choice, and related linguistic signals, the detector estimates how likely a passage was generated by AI, supporting academic integrity, authenticity checks, and source verification.

Frequently Asked Questions

How does the AI text detector work?

It reviews textual patterns, lexical diversity, sentence structure, and other signals to estimate whether models like ChatGPT or GPT-4 produced the content.

How accurate is the AI detection?

You receive probability scores from 0-100% for the full text and each sentence. The detector is highly accurate, but results should guide decisions rather than act as definitive proof because writing styles vary.

What does the probability score mean?

It shows the likelihood that the text was generated by AI. Below 30% typically indicates human writing, 30-70% is inconclusive, and above 70% suggests the content is likely AI-generated.

Can I upload documents for analysis?

Yes. Upload text files, PDFs, Word documents, and other supported formats, and the detector will extract the text and analyze it for AI-generated content.