PCST: A Systematic Study of Extreme Low-Bit LLaMA-7B Compression Without Retraining

Article automatically generated from technical news.

What Works, What Fails, and Why Local Weight Error Poorly Predicts Model Quality Project: PCST — Product Code Structured Transform This article deliberately reports both positive and negative results. It does not claim that PCST outperforms modern standard quantization. Its purpose is to document a reproducible search for the limits of LLaMA-7B compression without retraining and to show which locally promising methods fail end-to-end validation.