Originality AI

Originality.ai helps you figure out whether a piece of text is likely AI-generated or plagiarized. It’s aimed at writers, students, teachers, and teams who need a second opinion when reviewing submitted work or content before publishing.

• AI detection for major models: flags text that appears generated from popular LLMs (including ChatGPT, Gemini, Claude, Grok, and others).
• Plagiarism checks: pairs AI detection with plagiarism-style verification so you can judge originality in one place.
• Sentence-level highlights: shows which parts are most likely AI, so you can focus edits where they matter.
• Deep scan explanations: provides more detail on why content is flagged and how to edit to sound more natural.
• AI paraphrasing detection: tests and detects content that’s been modified or rewritten by other tools.
• Writing Replay: via the Chrome extension, you can review writing history to support authorship claims.
• Browser and document workflows: includes integration paths like Chrome and Google Docs for checking without switching tools.
• Reports for sharing: you can access scan history and export or share a report.

If you run checks at scale, it also offers (roles and access) and an for organizations that need repeatable content verification. For privacy-minded use, there’s an option for training data use and a way to remove scan history (when you have an account). The detector treats results as probabilities, not certainty, and encourages combining scores with other signals like drafts and writing process.