Can Classical ML Detect LLM-Generated Text?
A blog post by lyc8503 demonstrates that logistic regression and random forests using TF-IDF features reach 95.2% accuracy on GPT-3.5 and GPT-4 outputs, matching or exceeding many transformer detectors on short-form text. The discussion on Hacker News received 54 points and 22 comments, with users noting the approach runs inference in under 5 ms on CPU. What
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