Pangram Labs

Pangram Labs is an AI-text detector and plagiarism checker for essays, articles, user posts, and documents. It helps educators, publishers, legal, HR, and enterprise teams check for AI-generated writing, AI assistance, and copied text in one workflow.

Key Highlights

• Detects AI writing from ChatGPT, Claude, Gemini, Llama, Grok, Mistral, and other major models
• Highlights AI-assisted text and adds plagiarism detection on paid scans
• Supports file upload, OCR, PDF, DOCX, RTF, and up to 100 files at a time
• Offers Chrome, Google Docs, LMS integrations, API credits, and 20+ language support

What Makes It Different

Pangram says it uses a proprietary classifier trained on large human and AI writing datasets, with hard negative mining, active learning, and retraining as new models appear. It also says it does not rely on perplexity or burstiness alone, which can flag simple human writing.

The company cites third-party verification from the University of Chicago and the University of Maryland. Pangram reports 99.7% accuracy on its tested AI-generated samples; benchmark results depend on the sample set so scores should be interpreted with the benchmark and human review.

Features & Capabilities

Paste text or upload files, run the scan, then review scores, highlighted segments, and history. Pangram can mark text as human, AI-generated, or AI-assisted, including drafts edited by Grammarly, QuillBot, or an LLM.

For schools and organizations, Pangram connects to Canvas, Brightspace, Moodle, Google Classroom, Google Docs, and Chrome. Developers can buy API credits, while institutions can use LMS integrations with usage trends, plagiarism checks, and data controls.

User Ratings and Testimonials

Pangram's homepage includes testimonials from educators, Wiki Education, LessWrong, and Qwoted that praise low false positives. One educator says a Pangram flag should start a conversation, not act as automatic proof of misconduct.

Pricing & Value

• Free: $0, up to 2,000 words per day, AI assistance detection, file upload, OCR, Chrome, and Google Docs
• Individual: $20/month, up to 300,000 words per month, a 7-day free trial, plagiarism checks, and automatic scans
• Professional: $65/month, up to 1,500,000 words per month, plus $200 of monthly API credits, plagiarism checks, and automatic scans
• Educational Institution and Enterprise: custom pricing for LMS deployment, unlimited checks or high-volume processing, compliance, and support

The free plan is enough to test daily checks, while paid plans add scan volume and plagiarism features for classrooms, publishers, and teams.