Pangram Labs review: AI text and image detector with plagiarism checks for schools, publishers and teams

What Pangram Labs does

Checks pasted or uploaded text and images for AI generation, highlighting which parts are AI-written or AI-assisted, with an optional plagiarism check.

Pangram is an AI detection service. You paste text or upload documents, and it estimates whether the writing came from a person, an AI model, or a mix of both. Rather than a single yes-or-no verdict, it reports how much of a document appears AI-generated and highlights the parts edited with AI help. It covers output from major models such as ChatGPT, Claude and Gemini, and the vendor says it also catches text run through humanizer tools. Detection works across more than 20 languages, and an image detector is included alongside the text checker.

The product targets teachers, universities, publishers and enterprises. It connects to learning management systems such as Canvas, Moodle, Google Classroom and Brightspace, and a Chrome extension covers Google Docs and other web apps. An API is available for developers.

Pricing is freemium. A free plan gives twenty checks a day, including AI assistance detection. Paid tiers are Individual at $20 per month, Professional at $65 per month, and Team at $40 per month for 2 seats. The Individual plan starts with a 7-day free trial. Individual covers up to 300,000 words per month and 100 image scans monthly, while Professional multiplies those allowances by 5 and adds $200 in monthly API credits. Similarity (plagiarism) detection is part of the paid plans.

• AI text detection for ChatGPT, Claude, Gemini and more
• AI segment analysis showing how much of a document is AI
• AI assistance highlighting
• Similarity (plagiarism) checker
• AI image detection
• Detection across 20+ languages
• LMS integrations and Chrome extension
• Developer API

Our take

Pangram suits educators, editors and moderation teams who want to see which parts of a document look AI-written and who need results inside a learning management system, Google Docs or an API. The segment highlighting and shareable reports help when a flag has to be discussed with someone. It fits less well if you need a plagiarism check against web sources on the free plan, since that needs a subscription. The vendor itself says very short texts may lack enough signal, with 50 words as the recommended minimum. Accuracy figures on the site are the vendor's own claims, so verify them against your own content. The prices here are monthly-billing prices; the yearly per-month rate is not stated on the pricing page.