CoolFace
Modelpublic

dystrio/Qwen3.5-9B-Sculpt-Experimental

sourceHugging Faceapache-2.0updated 6mo agoView on Hugging Face
0likes21downloads
Model Card

Qwen3.5-9B-Sculpt-Experimental

18% FFN compression with live teacher distillation. Drop-in replacement — no custom kernels, no runtime changes.

Dystrio Sculpt structurally compresses transformer FFN layers, producing dense models that load with standard transformers.

This is the Experimental tier of Qwen3.5-9B.

Use case: Local — maximum compression (1.27x prefill)

Benchmark Results (lm_eval)

ModelMMLUHellaSwagARC-CTruthfulQAWinograndeGSM8K
Qwen3.5-9B (baseline)78.778.155.653.773.087.3
Sculpt Default (kf=0.95)76.2 (↓2.5)75.8 (↓2.3)56.4 (↑0.8)52.6 (↓1.1)68.7 (↓4.3)81.5 (↓5.8)
Sculpt Production (kf=0.9)73.9 (↓4.8)75.1 (↓3.0)56.8 (↑1.2)47.3 (↓6.4)69.8 (↓3.2)74.5 (↓12.8)
Sculpt Throughput (kf=0.88)70.8 (↓7.9)74.0 (↓4.1)57.2 (↑1.6)52.0 (↓1.7)70.7 (↓2.3)69.6 (↓17.7)
Sculpt Experimental (kf=0.82)70.2 (↓8.5)70.7 (↓7.4)53.6 (↓2.0)47.6 (↓6.1)66.6 (↓6.4)54.7 (↓32.6)

This Model vs Baseline

BenchmarkExperimentalBaselineDelta
arc_challenge53.655.6-2.0
gsm8k54.787.3-32.6
hellaswag70.778.1-7.4
mmlu70.278.7-8.5
mmluabstractalgebra48.066.0-18.0
mmlu_anatomy57.877.8-20.0
mmlu_astronomy79.692.8-13.2
mmlubusinessethics70.082.0-12.0
mmluclinicalknowledge74.086.8-12.8
mmlucollegebiology80.693.1-12.5
mmlucollegechemistry53.059.0-6.0
mmlucollegecomputer_science64.082.0-18.0
mmlucollegemathematics46.064.0-18.0
mmlucollegemedicine70.581.5-11.0
mmlucollegephysics50.064.7-14.7
mmlucomputersecurity78.083.0-5.0
mmluconceptualphysics80.090.2-10.2
mmlu_econometrics64.073.7-9.7
mmluelectricalengineering68.382.1-13.8
mmluelementarymathematics66.480.7-14.3
mmluformallogic59.565.9-6.4
mmluglobalfacts38.050.0-12.0
mmluhighschool_biology85.593.5-8.0
mmluhighschool_chemistry69.077.8-8.8
mmluhighschoolcomputerscience77.088.0-11.0
mmluhighschooleuropeanhistory78.287.3-9.1
mmluhighschool_geography89.492.4-3.0
mmluhighschoolgovernmentand_politics90.796.9-6.2
mmluhighschool_macroeconomics74.685.9-11.3
mmluhighschool_mathematics42.253.3-11.1
mmluhighschool_microeconomics82.493.3-10.9
mmluhighschool_physics55.672.8-17.2
mmluhighschool_psychology89.093.2-4.2
mmluhighschool_statistics73.178.7-5.6
mmluhighschoolushistory82.890.2-7.4
mmluhighschoolworldhistory85.789.9-4.2
mmluhumanaging69.578.9-9.4
mmluhumansexuality78.686.3-7.7
mmlu_humanities64.470.5-6.1
mmluinternationallaw83.590.1-6.6
mmlu_jurisprudence77.884.3-6.5
mmlulogicalfallacies76.184.7-8.6
mmlumachinelearning59.866.1-6.3
mmlu_management80.686.4-5.8
mmlu_marketing89.795.7-6.0
mmlumedicalgenetics78.091.0-13.0
mmlu_miscellaneous80.590.3-9.8
mmlumoraldisputes74.381.2-6.9
mmlumoralscenarios48.653.3-4.7
mmlu_nutrition75.286.3-11.1
mmlu_other72.983.1-10.2
mmlu_philosophy76.280.4-4.2
mmlu_prehistory75.084.3-9.3
mmluprofessionalaccounting56.065.6-9.6
mmluprofessionallaw54.960.3-5.4
mmluprofessionalmedicine76.591.5-15.0
mmluprofessionalpsychology72.782.8-10.1
mmlupublicrelations68.273.6-5.4
mmlusecuritystudies75.576.7-1.2
mmlusocialsciences79.987.0-7.1
mmlu_sociology85.189.1-4.0
mmlu_stem66.578.3-11.8
mmluusforeign_policy84.090.0-6.0
mmlu_virology51.856.6-4.8
mmluworldreligions77.886.5-8.7
truthfulqa_mc247.653.7-6.1
winogrande66.673.0-6.4

Performance

MetricSculptBaselineChange
Model size15.1 GB16.7 GB-9.6%
Parameters8,098,165,248——
Prefill throughput5,803 tok/s4,566 tok/s+27%
Decode throughput36 tok/s37 tok/s-4%
KV-cache footprint is unchanged — Sculpt only compresses FFN layers, not attention.

Quick Start

python
from transformers import AutoModelForCausalLM, AutoTokenizer

model = AutoModelForCausalLM.from_pretrained(
    "dystrio/Qwen3.5-9B-Sculpt-Experimental",
    torch_dtype="bfloat16",
    device_map="auto",
)
tokenizer = AutoTokenizer.from_pretrained("dystrio/Qwen3.5-9B-Sculpt-Experimental")

inputs = tokenizer("The future of AI inference is", return_tensors="pt").to(model.device)
outputs = model.generate(**inputs, max_new_tokens=100)
print(tokenizer.decode(outputs[0], skip_special_tokens=True))

All Sculpt Tiers

TierHuggingFaceConfigUse Case
Defaultdystrio/Qwen3.5-9B-Sculpt-Defaultkf=0.95Enterprise — maximum quality preservation
Productiondystrio/Qwen3.5-9B-Sculpt-Productionkf=0.9Enterprise — balanced quality and efficiency
Throughputdystrio/Qwen3.5-9B-Sculpt-Throughputkf=0.88Local/throughput — speed sweet spot (1.25x prefill)
Experimentaldystrio/Qwen3.5-9B-Sculpt-Experimentalkf=0.82Local — maximum compression (1.27x prefill)

Technical Details

  • —Method: Structural FFN pruning with importance-aware block selection + live teacher distillation (alpha=0.5)
  • —Keep fraction: 0.82 (18% of FFN neurons removed)
  • —Repair: 8-stage cosine-LR fine-tuning with best-checkpoint restore
  • —Training data: general_v2 mixture (WikiText, OpenHermes 2.5, MMLU, HellaSwag, GSM8K, OpenOrca)
  • —Hardware: 1x NVIDIA H200 141GB
  • —Output: Standard dense transformer — loads with any HuggingFace-compatible framework

Compatibility

  • —HuggingFace Transformers
  • —vLLM
  • —TGI (Text Generation Inference)
  • —llama.cpp / GGUF conversion
  • —AWQ / GPTQ quantization
  • —Any framework that loads standard safetensors

Citation

bibtex
@misc{dystrio_sculpt_2026,
  title={Dystrio Sculpt: Structural Compilation for Transformer LLMs},
  author={Dystrio},
  year={2026},
  url={https://huggingface.co/dystrio}
}