| What it does | Free AI checker that estimates text probability as AI-generated with sentence-level analysis
| Independent verification for AI agent outcomes
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| Stage | Not given
| Startup
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| Founded | Not given
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| Based in | US
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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.
| Hobbyist: free forever with 250 checks/month; Pro: $9/month with 2,500 checks/month, $0.01 per extra check
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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
| - Independent outcome verification with VERIFIED, FAILED, or UNKNOWN status
- First-party adapters for Stripe, GitHub, Linear, Sentry, Resend, and HTTP endpoints
- MCP integration with Claude Code, Cursor, and any MCP host
- GitHub Actions required check that fails on unverified claims
- Audit trail storing claims, evidence, and verdicts separately
- Capability inspection before agents call tools
- Read-only credential access with AES-256-GCM encryption
- Continuous monitoring with watches every 5-10 minutes on Pro plan
- Evidence retention for 7 days on Hobbyist, 1 year on Pro
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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
| - Refuses to guess: returns UNKNOWN rather than false positives when evidence is unreachable
- Neutral gate between agent execution and success verification
- Runs the same way in production as in development
- Never needs write access, only reads authoritative state
- Structured audit trail for debugging and agent evaluation
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 75 ● no change since last check | 2 ● no change since last check |
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| Trust Flow (Majestic) | 55 | 1 |
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| Citation Flow (Majestic) | 48 | 23 |
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| Referring domains (Majestic) | 2309 | 14 |
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Clever AI Detector
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