DetectGPT
AI detector that checks if text was written by a human or AI models like ChatGPT, GPT-4, and Gemini.
| What is it | AI detector that checks if text was written by a human or AI models like ChatGPT, GPT-4, and Gemini. |
|---|---|
| Pricing | Freemium — from $15/mo |
| Free tier | Yes |
| Platform | Web Application |
| API | Yes |
| Best for | verifying student assignment originality, checking content authenticity for publishers |
| Domain registered | 2022 |
Data updated Aug. 1, 2026
What does DetectGPT do?
DetectGPT is a tool that analyzes text to determine whether it was written by a human or generated by an AI. You paste your text into its interface or upload a file, and it provides a probability score indicating the likelihood of AI authorship. It works across more than 50 languages and is trained on a massive dataset of text to identify the subtle patterns typical of language models. The tool also includes a plagiarism checker to scan for copied content across the internet.
What sets DetectGPT apart is its focus on providing proof of authenticity. It generates shareable 'Human-Written Certificates' and PDF reports, which is useful for professionals who need to verify the originality of their work to clients or institutions. Beyond simple detection, it offers additional features like a readability score and a fact-checking function. An AI Content Humanizer tool is also included for rewriting flagged text.
This tool is most beneficial for educators verifying student submissions, students checking their own work for accidental plagiarism, and writers or freelancers who need to certify the originality of their content for clients. It provides a straightforward way to maintain integrity in academic, professional, and creative writing contexts.
Key features
What makes it stand outWho is DetectGPT for?
Who benefits most from this toolPricing
Free tier available — start without a credit cardEssential
- 50,000 words per month
- 1 user seat
- Premium AI detection models
- Batch file detection (10 files)
- PDF report generation
- AI Content Humanizer
- Plagiarism checker
Pro
- 250,000 words per month
- 3 team members
- Premium AI detection models
- Batch file detection (20 files)
- PDF report generation
- AI Content Humanizer
- Plagiarism checker
Team
- 500,000 words per month
- Unlimited team members
- Premium AI detection models
- Batch file detection (50 files)
- PDF report generation
- AI Content Humanizer
- Plagiarism checker
Trust & presence
Gallery
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