- SI Score
- 80/100
- Pricing
- Not confirmed
- Free plan
- Not confirmed
- Sign-up required
- Not confirmed
Ask SI about Originality.ai
Answers use saved listing facts and recorded sources.Homepage screenshot
What it does
Originality.ai offers an AI detector that checks whether text was written by a person or generated by AI models such as ChatGPT, Gemini, Claude and Grok. The site also lists a plagiarism checker, bulk scanning, a content quality score, guideline checker, fact and AI hallucination checker, grammar checker, readability checker and a Deep Scan writing tool. Extensions cover Chrome, Google Docs and Firefox, with a Moodle plugin, an API and MCP integration. Pricing, signup, contact and documentation pages are available.
The homepage states that users can check up to 2,000 words with 3 free AI scans per day. Products listed include AI Checker, Plagiarism Checker, Bulk Scan, Content Quality Score, Guideline Checker, Fact & AI Hallucination Checker, Grammar Checker, Readability Checker and Deep Scan. Integrations listed are Chrome, Google Docs, Firefox, Moodle, an API and MCP. A blog post dated October 28, 2025 describes a test of whether Grammarly edits trigger AI detection and sets out the site's policy on grammar and rephrasing tools.