Qwen3.8-27B-MixedInt4-AutoRound — Optimized for a Single DGX Spark

Hi everyone,

A few people have given me feedback, and I also wanted to evaluate the quantization more objectively myself. Based on those evaluation results, I made some further adjustments to the layers selected for quantization and ran another round of quantization.

The result is a second quantized version, still using the same MixedInt4 approach.

Evaluation BF16 Original MixedInt4 Difference Recovery Rate vs. Original
MMLU 0.8349 0.8307 -0.0042 (-0.42%p) 99.50%
GSM8K flexible-extract 0.7286 0.7612 +0.0326 (+3.26%p) 104.47%
GSM8K strict-match 0.7036 0.7369 +0.0333 (+3.33%p) 104.73%

As you can see, the recovery rates are very good, and I think this second version turned out to be a very successful quantization.

I am also planning to run Tool Eval Bench on this version and post the results in a new reply comment or thread. The updated model itself will be re-uploaded to the existing model repository.

I am currently studying at an academy while preparing for employment, and I am on my way home now. I will probably be able to start testing the community benchmarks in about an hour.

Thank you to everyone who has tried the model and provided feedback.

I believe the experience I gained from this process will help me provide an even better quantized version when the Qwen3.8 35B MoE model is released.