| What it does | Open-source AI security verification
| AI detector that identifies content generated by large language models
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| Stage | Not given
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| Founded | Not given
| 2023
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| Based in | Not given
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| Pricing model | Open source
| 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 | - Scan model and code artifacts offline
- Probe and monitor live endpoints
- Grade recorded application runs
- Diff and compare security runs
- 58 security rules across build and runtime
- Python API for integration
- Custom rule creation with YAML or Python
- Cost estimation before probing
- Optional self-hosted collector
| - 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 | - Fully offline artifact scanning with no telemetry or account required
- Unverified results never marked as clean; handles uncertainty explicitly
- Works with multiple model APIs and MCP servers regardless of model
- Re-grade recorded runs without rerunning the application
| - 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) | 2 ● no change since last check | 81 ● no change since last check |
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| Trust Flow (Majestic) | 2 | 27 |
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| Citation Flow (Majestic) | 21 | 43 |
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| Referring domains (Majestic) | 22 | 8387 |
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Guardana
GPTZero