| What it does | Most accurate AI detector for identifying ChatGPT, GPT-5, Gemini and other AI-generated content
| AI detector that identifies content generated by large language models
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| Stage | Not given
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| Founded | 2022
| 2023
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| Based in | CA
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| Pricing model | Freemium
| Freemium
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| Pricing | Not given
| Free tier for basic AI detection up to 10,000 characters. Professional plan available with pricing details on subscription page. API pricing available for developers.
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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
| - AI detection with 99.9% accuracy
- Sentence-by-sentence highlighting of AI-generated text
- Writing Replay showing video proof of writing process
- Plagiarism detection
- Grammar checking and writing feedback
- Chrome extension for browser-based scanning
- Integration with Canvas and Google Classroom
- API for developer integration
- Detects multiple AI models including GPT-5, GPT-6, Gemini, and Claude
- AI Tutor for writing improvement
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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
| - 99.9% accuracy rate verified by independent benchmarks from Penn State's AI Research Lab
- De-biased for ESL learners with only 1% false positive rate for non-native English writing
- Only detector with Writing Replay showing video proof of authentic writing process
- Trusted by over 10 million users and 100+ organizations globally
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 79 ● no change since last check | 81 ● no change since last check |
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| Trust Flow (Majestic) | 24 | 27 |
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| Citation Flow (Majestic) | 49 | 43 |
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| Referring domains (Majestic) | 7344 | 8387 |
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Originality.ai™
GPTZero