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CheckerAI vs Unfix

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

CheckerAI compared with Unfix
DetailCheckerAI logo CheckerAIUnfix logo Unfix
What it doesFree AI detector that checks text for signs of AI writing with no sign-up required Independent verification for bug fixes in C, C++ and firmware
StageNot given MVP
FoundedNot given Not given
Based inNot given Not given
Pricing modelFree Not given
PricingNot given Not given
Key features
  • 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
  • Reproduces bugs deterministically on base version before applying fix
  • Verifies fix removal confirms bug returns
  • Scans diffs for masking patterns like disabled sanitizers and weakened tests
  • Runs on real hardware via STM32 NUCLEO boards and ST-Link
  • Integrates with AI coding agents as MCP tool
  • Posts verdicts as GitHub pull request comments
  • Provides per-test verdicts: FIXED, BROKEN, FLAKY ON THE BENCH, FLAKY WORSE
  • Runs entirely on your machines with no cloud dependency
  • Generates reports for change records and regulatory compliance
  • Runs builds and tests in Linux container on your machine
What makes it different
  • 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
  • Only verification tool that reverses the fix to prove tests actually catch the bug
  • Deterministic verdict with no AI language model in decision logic
  • Tests on real hardware boards, not just laptops
  • Detects masking techniques that hide bugs while passing tests
  • Validated public benchmark showing 4 VERIFIED and 6 REJECTED on real open-source bugs
Community votes00
DR (Domain Rating by Ahrefs)2 +2 (up) since last checkNot checked yet no change since last check
Trust Flow (Majestic)20
Citation Flow (Majestic)140
Referring domains (Majestic)40

3 details filled in for both companies.

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