Summary
A developer created a 4-bit quantized version of Qwen3.5-4B, named Qwen3.5-4B-Singularity-Max, which surprisingly achieves better perplexity (6.74) than the original FP16 model (7.79). This breakthrough challenges the common assumption that 4-bit quantization severely degrades model accuracy, suggesting a "Noise-Canceling Effect" and potentially enabling more efficient and powerful smaller AI models.
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