dystrio/Llama-3.1-8B-Instruct-sculpt-default

10% smaller, quality preserved (1.0641x PPL), drop-in replacement. No custom kernels. No runtime changes.

Dystrio Sculpt structurally compresses transformer models, producing dense models that load with standard transformers — no custom code, no new ops, no deployment friction.

This is the Default tier of Llama 3.1 8B Instruct.

Quick Start

from transformers import AutoModelForCausalLM, AutoTokenizer

model = AutoModelForCausalLM.from_pretrained("dystrio/Llama-3.1-8B-Instruct-sculpt-default", torch_dtype="bfloat16", device_map="auto")
tokenizer = AutoTokenizer.from_pretrained("dystrio/Llama-3.1-8B-Instruct-sculpt-default")

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))

Benchmark Results

All tiers compiled from Llama 3.1 8B Instruct on A100 80GB, bf16:

Model	PPL	PPL Ratio	Weights (GB)	Chat Prefill TPS	RAG TTFT p95 (ms)	Decode TPS
Baseline	13.8879	1.0	14.957527	10570.4	126.745	66.8
sculpt-default	14.7778	1.0641	13.457527	11418.6	116.957	65.5
sculpt-production	21.9236	1.5786	11.863777	12760.5	112.529	66.7
sculpt-throughput	27.7463	1.9979	11.020027	13408.6	104.086	67.5
sculpt-experimental	29.3853	2.1159	10.832527	13483.3	103.432	67.4

Key Metrics (this model)

Metric	Value
Weights memory	13.457527 GB (10% smaller)
PPL ratio	1.0641
Chat prefill TPS	11418.6 (+8%)
RAG TTFT p95	116.957 ms (-8%)
Decode TPS	65.5 (flat)
Parameters	7.22B

All Sculpt Tiers

Tier	HuggingFace	Size	PPL Ratio	Use Case
default	dystrio/Llama-3.1-8B-Instruct-sculpt-default 👈 this model	13.457527 GB	1.0641	Zero-regret: quality preserved, smaller footprint
production	dystrio/Llama-3.1-8B-Instruct-sculpt-production	11.863777 GB	1.5786	Practical savings with modest quality tradeoff
throughput	dystrio/Llama-3.1-8B-Instruct-sculpt-throughput	11.020027 GB	1.9979	Maximum usable compression for speed/edge
experimental	dystrio/Llama-3.1-8B-Instruct-sculpt-experimental	10.832527 GB	2.1159	Boundary exploration, maximum structural compression

What is Dystrio Sculpt?

Dystrio Sculpt compiles transformer models into smaller, faster variants. Output models:

• Are dense (not sparse) — standard architecture, fewer parameters
• Load with standard HuggingFace Transformers — no custom code needed
• Require no custom kernels and no runtime changes
• Work as a one-step compile before deployment
• Stack with quantization (AWQ, GPTQ, GGUF) for compound savings

Compatibility

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

Benchmark Environment

• GPU: NVIDIA A100-SXM4-80GB
• dtype: bf16
• Torch: 2.10.0+cu128
• Transformers: 5.3.0
• Deterministic: True
• Single-GPU, standard HuggingFace Transformers, no custom kernels.

Metric Definitions

• PPL ratio: WikiText-103 perplexity relative to baseline. <1.0 = quality improved.
• Prefill TPS: Tokens per second during prompt encoding (higher = faster).
• TTFT p95: Time to first token at 95th percentile (lower = faster).
• Decode TPS: Tokens per second during generation (higher = faster).
• Weights (GB): Model parameter memory (deterministic, runtime-independent).

Citation

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

Downstream Benchmarks (lm-eval)

Evaluated with lm-eval-harness on A100-80GB, bf16, zero-shot.

Benchmark	Baseline	This Model	Delta
ARC-Challenge	0.5358	0.4283	-0.1075
HellaSwag	0.5977	0.5416	-0.0561
MMLU	0.6844	0.5590	-0.1254
TruthfulQA MC2	0.5456	0.4824	-0.0632