| What it does | Most accurate AI detector for identifying ChatGPT, GPT-5, Gemini and other AI-generated content
| Detect AI-generated text from ChatGPT, Gemini, and Claude in seconds
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| Stage | Not given
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| Founded | 2022
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| Based in | CA
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| Pricing model | Freemium
| Free
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| Pricing | Not given
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| Key features | - 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
| - Sentence-level scoring and AI probability highlights
- Supports ChatGPT, Gemini, Claude, and other AI models
- DOCX and PDF file upload
- Instant 2-second analysis
- No signup required
- Paragraph rewriter with goal-driven rewrites
- Tone changer for multiple voice styles
- Grammar checker with multiple English variants
- Real-time results
- 98.7% detection accuracy
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| What makes it different | - 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
| - 98.7% detection accuracy with sentence-level highlights
- Combines detection, rewriting, tone changing, and grammar checking in one workspace
- No signup required for immediate use
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 79 ● no change since last check | 4 ▲ +1 (up) since last check |
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| Trust Flow (Majestic) | 24 | 4 |
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| Citation Flow (Majestic) | 49 | 15 |
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| Referring domains (Majestic) | 7344 | 37 |
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Originality.ai™
CheckAIContent