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AIDetector
Paste your text to find out if AI helped write it.
Try for free • No registration required • Secure and private
Why Choose Our AI Detector?
Advanced AI detection technology with industry-leading accuracy and comprehensive analysis.
Precise AI Likelihood Scoring
Get detailed confidence percentages that show exactly how likely your text is to be AI-generated, with transparent scoring from 0-100%.

Superior to Human Detection
Our AI detector consistently outperforms trained human experts at identifying AI-generated content, providing more reliable results than manual review.

Humanizer-Proof Technology
Advanced detection algorithms that can identify AI content even when it's been processed through humanization tools and paraphrasing software.

Global Language Support
Accurately detects AI-generated content across 20+ languages including English, Spanish, French, German, Chinese, Japanese, and many more.

Frequently Asked Questions
What is AI content detection?
AI content detection, like the system used in ChatPDF's AI Detector, analyzes submitted text to identify whether it was written by artificial intelligence. The tool returns a confidence score based on the likelihood that the content is AI-generated.
How accurate is the ChatPDF AI Detector?
The ChatPDF AI Detector achieves over 99% accuracy, as validated by independent academic studies. It's built using cutting-edge models trained on tens of millions of writing samples across multiple domains.
What is ChatPDF's false positive rate?
ChatPDF's false positive rate—meaning the chance of mistakenly labeling human-written text as AI—is extremely low: just 1 in 10,000. This is based on extensive testing against large, real-world datasets.
Is my data safe when using ChatPDF?
Yes. Any text you submit for analysis is treated as private and secure. We do not store or share your content beyond what's needed for processing your request.
What languages does ChatPDF detect AI content in?
ChatPDF supports AI detection in over 20 languages, including English, Spanish, French, German, Chinese, Arabic, Hindi, Japanese, Portuguese, Dutch, Russian, and many more.
What signals does ChatPDF use to detect AI writing?
The detector looks at writing style, word choice, syntax patterns, and grammar structures—not databases or web content. It does not rely on plagiarism detection, user history, or tracking behavior—only on the submitted text itself.
Why is ChatPDF less prone to false positives than other AI detectors?
Many detectors rely on metrics like perplexity, which can incorrectly flag simple or predictable writing as AI. ChatPDF uses deep learning models trained to recognize broader writing patterns, which reduces false positives and improves reliability—especially in education or publishing settings.
Who uses ChatPDF's AI Detector?
Our detector is trusted by educators, editors, journalists, and professionals who need a reliable way to verify content originality. It's widely used in schools, universities, media organizations, and content moderation workflows.
How does ChatPDF's AI Detector work?
ChatPDF's AI Detector analyzes writing patterns and linguistic signals in your text to determine if AI was used. If evidence of AI writing is found, it returns a confidence score indicating the strength of that prediction.
Can I use ChatPDF for academic or professional purposes?
Absolutely. ChatPDF's AI Detector is designed to support academic integrity, editorial standards, and transparency in communication. It's ideal for evaluating essays, reports, press releases, and more.