Pangram Labs
Detects AI-generated text with segment-level accuracy analysis.
About Pangram Labs
Pangram Labs builds an AI text detector, Pangram, that identifies content generated by models such as ChatGPT, Claude, and Gemini, including text that has been run through humanizing or evasion tools. The product analyzes writing at the segment level, showing which portions of a document appear AI-generated versus human-written, and distinguishes between fully AI-generated text and human writing that was AI-assisted or edited. It supports more than 20 languages and includes a built-in plagiarism checker. The company was founded in 2023 in Brooklyn, New York, by Max Spero and Bradley Emi, initially operating under the name Checkfor.ai before rebranding to Pangram Labs in 2024. Independent research from the University of Chicago and University of Maryland has evaluated the detector's accuracy against competitors including GPTZero and Originality.ai. Pangram is available through a web interface, Chrome and Firefox browser extensions, a Google Docs add-on, and integrations with learning platforms including Canvas, Google Classroom, Moodle, and Brightspace. A developer API is offered for high-volume or custom integrations. A free tier allows a limited number of daily scans, with paid subscription and API pricing for heavier use. The company reports a false positive rate of roughly 1 in 10,000.
At a glance
- Company
- Pangram Labs (est. 2023)
- Platforms
- Web, Chrome Extension, API
- API
- Available
- Integrations
- Google Docs, Canvas, Google Classroom, Moodle, Brightspace
- Last verified
- August 2026
Who It's For
- •Educational institutions and universities
- •Content moderation teams and social media platforms
- •Publishers, journalists, and media organizations
- •Companies requiring content authenticity verification
- •Researchers and developers working with AI content detection
How It Works
- 1Uses transformer-based neural networks trained on large datasets of human and AI-generated texts.
- 2Analyzes the linguistic and stylistic features of the content to determine its origin.
- 3Supports multi-language detection to identify AI content worldwide.
- 4Employs proprietary algorithms designed to detect specific markers of machine-generated text.
How to Use Pangram Labs
- 1Upload or paste text into the platform or use their Chrome extension.
- 2Click the 'Check for AI Content' option to analyze the text.
- 3Review the detection results indicating whether the text is AI-generated or human-written.
- 4Utilize the platform for batch analysis or integrate via API for large-scale detection.
Key Features
- •AI segment-level analysis
- •AI-assistance detection
- •Plagiarism checker
- •20+ language support
- •Browser extensions
- •Google Docs integration
- •LMS integrations
- •Developer API
Use Cases
- •Check student essays for AI-generated content
- •Verify authenticity of submitted articles for publishers
- •Screen AI-written text during hiring or recruiting
- •Moderate AI-generated content at scale
Pros & Cons
Advantages
- •Very high detection accuracy, outperforming many competitors.
- •Supports multiple languages for global applicability.
- •Offers both web and browser extension tools for convenience.
- •Regular updates to improve model performance.
Disadvantages
- •May require API integration for large-scale enterprise use.
- •Detection results can sometimes vary with new or advanced AI models.
- •Limited information on free access or pricing.
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Frequently Asked Questions
What is Pangram Labs?
Pangram Labs builds an AI text detector, Pangram, that identifies content generated by models such as ChatGPT, Claude, and Gemini, including text that has been run through humanizing or evasion tools. The product analyzes writing at the segment level, showing which portions of a document appear AI-generated versus human-written, and distinguishes between fully AI-generated text and human writing that was AI-assisted or edited.
How much does Pangram Labs cost?
Pangram Labs uses custom pricing — contact the vendor for a quote.
Is Pangram Labs free?
Pangram Labs is a paid tool and does not offer a free plan.
What are the best Pangram Labs alternatives?
Popular Pangram Labs alternatives include GPTZero, Originality.ai.
What is Pangram Labs used for?
Pangram Labs is commonly used for Check student essays for AI-generated content, Verify authenticity of submitted articles for publishers, Screen AI-written text during hiring or recruiting.
Does Pangram Labs have an API?
Yes, Pangram Labs offers an API for developers.
What platforms does Pangram Labs support?
Pangram Labs is available on Web, Chrome Extension, API.
Information Accuracy
Please note: While we regularly update all tool information including descriptions, features, pricing, and other details, this information may change over time as tools evolve and update their offerings. For the most current and accurate information, we recommend visiting the official website directly. Our goal is to provide you with comprehensive and up-to-date information to help you make informed decisions.