| What it does | Evidence laid out, not a lone percentage.
| 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 plan: 4 welcome credits (1 full report). Pro: $19/month for 300 credits/month. Team: $59/month for 1500 credits/month. Each report costs 4 credits.
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| Key features | - Cross-checks four independent detection models
- Deterministic evidence trump card (C2PA credentials, generator self-tags)
- Published weighted-vote rule (30% each for Sightengine, Winston AI, Was It AI; 10% for SAFE)
- Batch screening of up to 50 images at once
- Graded conclusions with disagreement reported
- Shareable report links and forensic PDF download
- Support for JPEG, PNG, WebP up to 12MB
- Generator-specific classification (Midjourney, DALL-E, Stable Diffusion, Flux, Imagen, Adobe Firefly, Ideogram)
- SHA-256 file hash recording for chain-of-custody
- Private uploads, shared only via report link
| - 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 | - Published weighted-vote rule with every vote shown by name instead of hidden percentages
- Reports disagreement honestly instead of blending signals into one number
- Automatic credit refund when an engine fails
- Full product access in free tier (not a limited teaser)
- Deterministic file evidence (C2PA, metadata) that outranks model votes
| - 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) | 41 ▲ +1 (up) since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 13 | 2 |
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| Citation Flow (Majestic) | 27 | 14 |
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| Referring domains (Majestic) | 102 | 4 |
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AI Image Detector
CheckerAI