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I Benchmarked My Vanilla JS CBT Detector Against 5 NLP Libraries — Here Is When Rule-Based Wins

The Question I built a cognitive distortion detector in 200 lines of vanilla JavaScript. No ML. No NLP library. No API. No backend. Pattern matching on keyword arrays.

  • Vanilla JS cognitive distortion detector achieved 94% accuracy in benchmark
  • Other NLP libraries had varying accuracies: 61%, 58%, 72%, 89%, 83%
  • Vanilla JS detector offers minimal latency, no costs, and local data processing

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