| What it does | Free AI checker that estimates text probability as AI-generated with sentence-level analysis
| 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 | US
| CA
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| Pricing model | Free
| Freemium
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| Pricing | $0 - completely free with no ads, paywall, or sign-up required. Unlimited checks with up to 10,000 words per check and sentence-level signals included.
| Not given
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| Key features | - AI probability score on 0-100 scale
- Sentence-level AI signal analysis
- Supports up to 10,000 words per check
- Detects text from ChatGPT, Gemini, Claude, DeepSeek and other AI models
- No sign-up required to use
- Check history saved for signed-in users
- Supports English and Spanish text
- Ranked #1 on GEDE Benchmark
- Minimum 80-word requirement for meaningful results
- No ads or paywall
| - 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 | - Reports probability instead of certainty, with sentence-level context for review
- Provides full results free with no paywalled features
- Ranked #1 on independent GEDE detection benchmark
- Allows unlimited checks with no usage limits
- Model-agnostic detection across all major AI platforms
| - 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) | 75 ● no change since last check | 79 ● no change since last check |
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| Trust Flow (Majestic) | 55 | 24 |
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| Citation Flow (Majestic) | 48 | 49 |
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| Referring domains (Majestic) | 2309 | 7344 |
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Clever AI Detector
Originality.ai™