Originality.ai

Originality.ai, an independent company based in Collingwood, Ontario, Canada, detects AI-generated content, plagiarism, and quality issues in text, analyzing writing to identify whether content was created by humans or AI language models. It offers AI content detection across multiple LLMs including GPT-5.6, Claude, Gemini, and DeepSeek, plagiarism checking, fact-checking capabilities, and grammar and readability checkers. Originality.ai includes content quality scoring, a 'Writing Replay' feature to demonstrate authorship, a Chrome extension and Google Docs integration, and a Moodle plugin for educational institutions. It provides API access for developers, an 'AI Allowance' feature allowing customizable thresholds for acceptable AI content, and bulk scanning with support for 30 languages. The platform has significant adoption by universities, media organizations, and enterprises. Pricing is freemium: users receive 3 free daily scans of up to 2,000 words, with paid subscription tiers available for individuals, educators, and enterprises needing higher volume.