| What it does | Free AI detection for essays and academic writing before submission
| Most accurate AI detector for identifying ChatGPT, GPT-5, Gemini and other AI-generated content
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| Stage | Startup
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| Founded | 2026
| 2022
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| Based in | Not given
| CA
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| Pricing model | Freemium
| Freemium
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| Pricing | Free tier available. Paid plans: Basic $3.59/month (1 credit/month), Pro $14.79/month (5 credits/month), Ultra $22.79/month (12 credits/month). Yearly pricing available with up to 60% savings.
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| Key features | - AI detection score with estimated AI-likeness rating
- Paragraph-level report showing where AI signals appear
- Writing review suggestions for improvement
- Risk level classification (low, medium, high, very high)
- Analysis of predictable sentence flow patterns
- Detection of repeated paragraph structure
- Identification of generic academic language
- Private, non-repository mode processing
- No signup required for basic checking
- Bulk upload capability on paid plans
| - 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 | - Independent tool not affiliated with or endorsed by official Turnitin
- Report-style results showing specific AI signals rather than just a percentage
- Analyzes multiple AI writing tools and styles including ChatGPT, Claude, and Gemini
- Designed specifically for academic writing with essay-focused features
| - 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) | 4 ● no change since last check | 79 ● no change since last check |
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| Trust Flow (Majestic) | 6 | 24 |
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| Citation Flow (Majestic) | 23 | 49 |
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| Referring domains (Majestic) | 53 | 7344 |
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Originality.ai™