Qwen 27B NVFP4 Quantization Underperforms Baseline

Pyrolistical · reddit · 2026-09-01

The author evaluated Qwen3.8 27B NVFP4 GGUF models against Unsloth baselines using perplexity scores. Results show that all tested NVFP4 models have worse perplexity for their file size compared to standard quants, even underperforming Q4KXL. This likely explains why Unsloth does not publish NVFP4 GGUF versions.

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