Originality AI

Originality AI is a content scanning tool that analyzes submitted text and produces a probability score indicating whether the content was written by a human or generated by an AI model. The detection system is trained against outputs from major large language models including ChatGPT, Claude, Gemini, and others. Each scan also runs a simultaneous plagiarism check against indexed web content, returning both results in a single report. Users can submit text directly, upload files in formats including DOCX and PDF, or enter a URL for full-page or full-site scanning. The credit-based system charges one credit per 100 words scanned, with credits available through one-time purchase or monthly subscription plans. Originality AI is used primarily by content agencies, SEO publishers, and academic organizations that process large volumes of written material. Content managers use the team management features in the Pro plan to assign scanning tasks across team members, track usage, and maintain a shared history of past scans. Publishers running full-site audits use the URL scanning feature to verify large volumes of existing content at once. Beyond core AI and plagiarism detection, the platform includes readability scoring, grammar checking, and a fact-checking aid, which position it as a broader content quality tool rather than a single-purpose detector. Chrome extension support and a WordPress plugin enable scanning from within common editorial environments. Originality AI's main strength is its detection accuracy for AI-generated content, which the company benchmarks continuously against new model outputs. The pricing structure is flexible: a one-time pay-as-you-go option ($30 for 3,000 credits with a two-year expiry) suits occasional users, while the Pro plan at $12.95 per month provides 2,000 credits monthly and is the most cost-effective option for regular content teams. The Enterprise plan at $136.58 per month delivers 15,000 credits for high-volume agencies. A key constraint is that there is no free tier — users must purchase credits or subscribe to begin scanning, which limits the ability to evaluate the tool thoroughly before committing. The credit consumption rate can also be significant for very long-form content audits. View alternatives.