Write Quality SEO-Ready Copy.

Ensure your content remains genuine and optimized. Avoid AI flags and boost your brand’s credibility with GPTZero.

99%

Accuracy

8 million

Users

3,500

Universities & Schools

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The world's most accurate AI checker.
Get 10,000 free credits.
Free grammar check and writing feedback.

Automate Grading and Citation Verification

Get Unparalleled, Advanced Accuracy

Independent benchmarking shows GPTZero Advanced Scan has best-in-class accuracy.

Write Better SEO-Friendly Content

Maintain content that's optimized for search engines—no flags, just quality.

Build Brand Credibility

Show your audience real, trustworthy content that builds lasting confidence.

Seamless Workflow Integration

Easily incorporate GPTZero into your existing content process with simple, fast scans.

How GPTZero Works

Step 1

Paste Your Copy

Simply paste your content into our tool to begin the scan

Step 2

Advanced AI Scan

Our advanced algorithm checks for hidden AI-generated elements to ensure authenticity

Step 3

Get Clear Feedback

Receive actionable insights so you can confidently publish content that’s 100% you

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Trusted by Top Brands

"GPTZero has been incomparably more accurate than any of the other AI checkers. For me, it’s the best solution to build trust with my clients."

CEO, Transit Pluto Studios

Samantha Warren

"Excellent chrome extension. I ran numerous tests on human written content and the results were 100% accurate."

Investor, Washington Partners

Frank Li

Frequently Asked Questions

GPTZero is a leading AI detector that checks if a document is written by a large language model (e.g., ChatGPT). It analyzes text at the sentence, paragraph, and document levels and is trusted by over 2.5 million users and 100+ organizations.

Simply paste or upload your text, and GPTZero will highlight sections with AI markers along with easy-to-understand feedback. For larger texts or batches, sign up for a free Dashboard account, or use our Chrome Extension for one-click scans.

Use GPTZero to flag potential AI use in writing—whether in education, hiring, or content verification—to spark discussions and raise awareness about AI's impact on written work.

No, GPTZero works robustly across a range of AI language models, including but not limited to ChatGPT, GPT-4, GPT-3, GPT-2, LLaMA, and AI services based on those models.

No, GPTZero detects outputs from a range of AI models including ChatGPT, GPT-4, GPT-3, GPT-2, LLaMA, and others. Verified by multiple independent sources, including TechCrunch, which called us the best and most reliable AI detector after testing seven others.

AI-generated content is evolving, so our results should be used to prompt further inquiry, not as absolute proof. Accuracy improves with more text and is optimized for descriptive English prose, but edge cases and heavily modified text may occasionally lead to misclassifications.

It ensures your content remains natural and authentic, keeping it optimized and unflagged for search engines.

Any written copy—blog posts, web pages, ads—GPTZero scans and provides actionable insights for authenticity.

Not at all. Our tool delivers fast, accurate results so you can keep moving forward.

Write Quality SEO-Ready Copy.

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