| What it does | Citations, built for AI agents
| Free AI detector that checks text for signs of AI writing with no sign-up required
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
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| Pricing model | Freemium
| Free
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| Pricing | Free tier for small requests with no API key required; 10 million free tokens to start; $1 per million tokens for pay-as-you-go, with discounts available at volume or with annual commitments; failed requests are never charged.
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| Key features | - Token-level attribution with confidence scores
- Works with any AI model without access to weights or internals
- Processes documents up to 1 million tokens
- Returns results in under 2 seconds for 20,000-token documents
- On-premise and air-gapped deployment options
- PDF support with character-level mapping
- Supports 23+ languages including Indian languages
- Chrome browser extension for page and PDF tracing
- Raw token-by-token heatmaps available via API
- No data logging or training on request content
| - Score-based detection showing how closely text resembles AI writing
- Highlighted passages showing flagged sections in context
- Support for multiple file formats including PDF and Word documents
- No account or registration required
- Automatic sectioning for long documents
- Detection of multiple AI writing models
- No submission history or database storage
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| What makes it different | - Measures attention directly from the model's computation rather than asking the model to cite itself, providing verifiable attribution
- Achieves frontier-grade citation quality at 7x lower cost and 5-6x faster than alternatives
- Never confused by duplicate facts—identifies the exact occurrence the answer used even when values appear multiple times
- Lands on exact tokens down to character level, not just document chunks
- Works on any model's output post-generation without modifying inference pipeline
| - Completely free with no sign-up required
- Works with documents up to 20 MB in multiple formats
- Provides context-aware highlighting alongside original text
- No data retention or published results
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 2 ● no change since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 3 | 2 |
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| Citation Flow (Majestic) | 16 | 14 |
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| Referring domains (Majestic) | 36 | 4 |
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TokenPath
CheckerAI