| What it does | Free AI content detector with sentence-level insights, no signup required
| Most accurate AI detector for identifying ChatGPT, GPT-5, Gemini and other AI-generated content
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| Stage | Not given
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| Founded | Not given
| 2022
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| Based in | Not given
| CA
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| Pricing model | Free
| Freemium
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| Pricing | Free to use with unlimited checks and no signup required.
| Not given
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| Key features | - AI probability score
- Sentence-level analysis
- No account creation required
- Independent from official Copyleaks platform
- Fast analysis in seconds
- Works with essays, articles, emails, reports and assignments
| - AI Checker - detect ChatGPT, GPT-5, Gemini, Claude, Grok and other AI writing tools
- Plagiarism Checker - identify plagiarism and duplicated content
- Writing Replay - shows authorship and writing process in browser extension
- Chrome Extension and Google Docs integration
- Moodle plugin for academic integrity checking
- Fact & AI Hallucination Checker
- Grammar and Spelling Checker
- Readability Checker and Content Quality Score
- API access for developers and integrations
- Bulk Scan for multiple texts at once
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| What makes it different | - Free alternative to Copyleaks with no signup or credits needed
- Sentence-level insights instead of just an overall score
- Built for responsible review with human judgment at the center
- Fast, low-friction workflow directly from the homepage
| - Proven accuracy in peer-reviewed third-party studies
- Trained on adversarial data to detect AI paraphrasing attempts
- Writing Replay feature proves human authorship
- Multi-product platform with plagiarism, grammar, fact-checking and readability tools
- Enterprise security with military-grade 256-bit encryption
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 1 ● no change since last check | 79 ● no change since last check |
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| Trust Flow (Majestic) | 3 | 24 |
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| Citation Flow (Majestic) | 24 | 49 |
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| Referring domains (Majestic) | 23 | 7344 |
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AI Detector
Originality.ai™