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shadow-llm/
robot-dog-shadow-peft-v2

Name: robot-dog-shadow-peft-v2
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ShadowPEFT: Shadow Network for Parameter-Efficient Fine-Tuning

ShadowPEFT is a parameter-efficient fine-tuning (PEFT) framework that augments a frozen large base model with a lightweight, centralized, pretrainable, and detachable Shadow network. The shadow network runs in parallel with the base model, injecting learned corrections into each decoder layer to enable effective adaptation with a fraction of the parameters.

Since the shadow module is architecturally decoupled from the backbone, it can be trained, stored, and deployed as a standalone component, benefiting edge computing and modular deployment.

Paper: ShadowPEFT: Shadow Network for Parameter-Efficient Fine-Tuning
Repository: ShadowLLM/shadow-peft

Quick Start

To use ShadowPEFT, first install the package:

pip install shadow-peft

Then you can wrap a base model with a Shadow adapter:

python

from transformers import AutoModelForCausalLM, AutoTokenizer
from shadow_peft import get_shadow_model, ShadowConfig

model = AutoModelForCausalLM.from_pretrained("Qwen/Qwen3-0.6B")
tokenizer = AutoTokenizer.from_pretrained("Qwen/Qwen3-0.6B")

# Wrap the base model with a Shadow adapter (1-layer implicit shadow)
model = get_shadow_model(model, ShadowConfig(num_shadow_layers=1))
model.print_trainable_parameters()
# Only shadow-related parameters are trainable; base model is frozen.

Citation

bibtex

@article{li2026shadowpeft,
      title={ShadowPEFT: Shadow Network for Parameter-Efficient Fine-Tuning}, 
      author={Xianming Li and Zongxi Li and Tsz-fung Andrew Lee and Jing Li and Haoran Xie and Qing Li},
      year={2026},
      eprint={2604.19254},
      archivePrefix={arXiv},
      primaryClass={cs.CL},
      url={https://arxiv.org/abs/2604.19254}, 
}

shadow-llm/robot-dog-shadow-peft-v2

ShadowPEFT: Shadow Network for Parameter-Efficient Fine-Tuning

Quick Start

Citation

shadow-llm/
robot-dog-shadow-peft-v2