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TheChecker.AI

TheChecker.AI

An AI text detector with a built-in humanizer, positioned as a GPTZero alternative. Detection returns sentence-level scores and names the likely source model (40+ recognized, including GPT-5, Claude, Gemini); the humanizer rewrites AI text and shows before/after detection scores. Ships an MCP server so Claude and other clients can call detection and humanization directly. Vendor-stated accuracy is 93% (not the 99.7% some directories list). Pricing: $9.90/mo or $99/yr for unlimited detection + 5,000 humanizer words/month; humanizer word packs $5–$35. Free demo, no account, content not stored. Note: third-party traffic analysis estimates near-zero monthly visits (DR 13), so real-world usage is unverified; the vendor\'s own blog documents detector false positives extensively, including a 61% false-positive rate on non-native English essays from a Stanford study. Treat any score as a signal, not a verdict.

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