AI Detector — Verified AI Content Checker

What is AI content detection?

AI content detection, like Pangram's AI checker tool, analyzes text for traces of AI writing. AI detectors return a prediction and a score based on the likelihood that the text is AI-generated.

How does Pangram work?

Pangram's AI detection tool analyzes text for traces of AI writing. If our system finds evidence that the content contains AI writing, it will return this observation along with how much of the document we believe is AI-generated or AI assisted. Otherwise, we consider the result human written.

How accurate is Pangram?

Pangram is over 99% accurate and has been third-party verified by researchers at the University of Chicago and The University of Maryland.

What is Pangram's false positive rate?

Pangram's false positive rate (the rate at which human documents are incorrectly flagged as AI) is currently 1 in 10,000. This number is calculated on an aggregate of public datasets containing tens of millions of written documents.

Is Pangram's AI detector free?

We offer four free checks a day after signing up for our free plan, including AI assistance detection. Additional credits and features like plagiarism detection are available with a subscription. For more information, check out our pricing plans.

What languages does Pangram detect AI content in?

Pangram's multilingual AI checker detects AI writing in English, Arabic, Chinese, Czech, Dutch, French, German, Greek, Hindi, Hungarian, Italian, Japanese, Korean, Persian, Polish, Portuguese, Romanian, Russian, Spanish, Swedish, Turkish, Ukrainian, Urdu, Vietnamese, and more.

What AI models does Pangram detect?

Pangram detects AI writing from the latest ChatGPT 5, Claude Sonnet by Anthropic, Google Gemini, Deepseek, Meta AI, Grok, Llama, Mistral, OpenAI's o1, o3, Perplexity and Deep Research. Pangram also detects AI suggestions from AI writing tools like Grammarly and Quillbot. Pangram even detects new and unreleased AI models.

Why is Pangram the best AI detector?

Pangram is built by a team of seasoned machine learning engineers with extensive experience in AI. Pangram is the most advanced AI detection model and is built on millions of human and AI documents to ensure that it can pick up on even the most subtle nuances in AI writing.