Originality.AI

Originality.ai's Free AI Detector - Use our free AI checker to identify if text was generated from a popular AI platform like ChatGPT, Gemini, Claude, Grok and others

Originality.AI checks whether a piece of text was generated by AI systems such as ChatGPT, Gemini, Claude, or Grok, pairing that AI detector with a companion plagiarism checker for publishers, educators, and content teams. It describes itself as one of the more accurate AI detectors in third-party studies, trained on adversarial data meant to catch text that has been edited to dodge detection.

As an SEO and writing tool, it goes beyond the core AI and plagiarism checks with a bulk scan mode for checking many texts at once, a content quality score, a guideline checker, a fact checker, grammar and readability checkers, and a "Deep Scan" AI writing tutor. It also ships as browser extensions for Chrome, Google Docs, and Firefox, plus a Moodle plugin and an API for building these checks into other apps and workflows.

Originality.AI offers a free tier that lets anyone check up to 2,000 words with three free AI scans per day, with paid plans available through its pricing page for higher volume and additional features, making it a freemium tool. Writers, educators, or content teams that want to verify a piece of text can run the free AI checker directly on its site.

Category: SEO. Pricing: freemium. Visit website

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