Pangram — AI for Writing, Translation & Localization

Pangram is an AI content detector aimed at people who need to judge whether a piece of writing was produced by a model: teachers, editors, publishers, recruiters and compliance teams. You paste text or upload PDF, DOCX or RTF files, up to 100 at a time, and get a score plus a breakdown of how much of the document is AI and which segments were AI-assisted rather than fully generated. A similarity checker runs a plagiarism check in the same scan. The vendor says it uses its own trained model rather than perplexity and burstiness, supports more than 20 languages, and can detect text that has been run through humanizer tools. It also lists a false positive rate of 1 in 10,000 and per-model accuracy figures, which are vendor claims you should read as such. Beyond the web app, it works in Chrome, Google Docs, Google Classroom and Canvas, and the paid plans add social feed auto-scanning, an MCP server and API credits. The free tier gives 20 credits a day; the Individual plan is $20 a month with a 7-day trial and caps usage at 300,000 words or 100 image detection scans per month. API rates are listed per 100 words. Any detector gives a probability rather than proof, so treat a flag as a reason to look closer, not a verdict.