---
base_model: Qwen/Qwen3-1.7B
library_name: transformers
pipeline_tag: text-generation
tags:
- qwen3
- edgerazor
- quantization
license: apache-2.0
license_link: https://huggingface.co/Qwen/Qwen3-1.7B/blob/main/LICENSE
---
Qwen3-1.7B-EdgeRazor-4bit
## Contents
- [Contents](#contents)
- [Model Overview](#model-overview)
- [Model Bit-Widths](#model-bit-widths)
- [Model Performance](#model-performance)
- [Quickstart](#quickstart)
- [Citation](#citation)
## Model Overview
- Base Model: [Qwen/Qwen3-1.7B](https://huggingface.co/Qwen/Qwen3-1.7B)
- Training: [zhangsq-nju/EdgeRazor](https://github.com/zhangsq-nju/EdgeRazor)
- Quantization: 4-bit for all embedding, decoder, and lm_head layers
## Model Bit-Widths
| Mixed-Precision Recipe | Bit-Width | This Repo |
| ---------------------------- | --------- | ------------ |
| 100% 4-bit + 0% 1.58-bit | 4 | ✔️ |
| 50% 4-bit + 50% 1.58-bit | 2.79 | |
| 12.5% 4-bit + 87.5% 1.58-bit | 1.88 | |
| 0% 4-bit + 100% 1.58-bit | 1.58 | |
## Model Performance
| Models | W-A-KV | ARC-e | ARC-c | HellaS. | BoolQ | PIQA | WinoG. | SIQA | OBQA | Tr.QA2 | Ethics | MMLU | IFEval | GSM8K | HumanE. | Average (↑) |
| ---------- | ---------- | ----- | ----- | ------- | ----- | ----- | ------ | ----- | ----- | ------ | ------ | ----- | ------ | ----- | ------- | ----------- |
| Qwen3-1.7B | 16-16-16 | 69.87 | 42.83 | 60.40 | 77.77 | 72.58 | 60.85 | 45.19 | 37.40 | 45.97 | 49.63 | 55.49 | 67.10 | 68.76 | 67.07 | **58.64** |
| EdgeRazor | 4-16-16 | 70.66 | 44.80 | 57.51 | 80.09 | 72.31 | 60.14 | 44.06 | 38.40 | 48.41 | 64.02 | 54.70 | 58.96 | 68.39 | 57.32 | **58.56** |
| EdgeRazor | 2.79-16-16 | 63.47 | 38.57 | 49.48 | 78.78 | 68.23 | 55.64 | 43.91 | 33.40 | 45.42 | 60.81 | 46.25 | 54.71 | 54.28 | 53.66 | **53.33** |
| EdgeRazor | 1.88-16-16 | 59.60 | 34.04 | 40.94 | 72.11 | 65.23 | 54.38 | 41.76 | 29.80 | 46.09 | 57.30 | 38.93 | 43.81 | 36.39 | 39.63 | **47.14** |
| EdgeRazor | 1.58-16-16 | 55.60 | 31.06 | 39.53 | 70.95 | 63.60 | 53.28 | 41.97 | 31.60 | 40.16 | 55.89 | 35.00 | 32.72 | 29.49 | 33.54 | **43.89** |
| EdgeRazor | 4-8-8 | 70.16 | 44.45 | 57.52 | 79.82 | 72.58 | 59.67 | 43.45 | 38.20 | 48.37 | 63.56 | 54.29 | 60.26 | 68.54 | 59.15 | **58.57** |
| EdgeRazor | 2.79-8-8 | 62.79 | 38.31 | 49.53 | 78.38 | 68.72 | 56.04 | 43.65 | 33.40 | 45.57 | 60.72 | 46.27 | 54.34 | 53.68 | 50.61 | **53.00** |
| EdgeRazor | 1.88-8-8 | 59.09 | 33.53 | 40.85 | 72.14 | 65.18 | 53.99 | 41.76 | 29.00 | 46.18 | 57.33 | 39.03 | 41.96 | 37.53 | 40.85 | **47.03** |
| EdgeRazor | 1.58-8-8 | 55.64 | 31.48 | 39.68 | 70.70 | 64.25 | 53.91 | 41.76 | 31.60 | 40.15 | 56.26 | 35.07 | 32.35 | 28.96 | 32.93 | **43.91** |
## Quickstart
It is recommended to ensure that `EdgeRazor` is installed in advance for weight-activation quantization. The provided weights are already quantized (quantized_weights*scaling_bf16); to enable activation and KV cache quantization, set `trust_remote_code=True` in the model configuration.
```python
from transformers import AutoModelForCausalLM, AutoTokenizer
model_name = "zhangsq-nju/Qwen3-1.7B-EdgeRazor-4bit"
# load the tokenizer and the model
tokenizer = AutoTokenizer.from_pretrained(model_name)
model = AutoModelForCausalLM.from_pretrained(
model_name,
torch_dtype="auto",
device_map="auto",
trust_remote_code=True,
)
# prepare the model input
prompt = "Give me a short introduction to large language model."
messages = [
{"role": "user", "content": prompt}
]
text = tokenizer.apply_chat_template(
messages,
tokenize=False,
add_generation_prompt=True,
enable_thinking=False # For EdgeRazor-nbit, we only train the instruct mode.
)
model_inputs = tokenizer([text], return_tensors="pt").to(model.device)
# conduct text completion
generated_ids = model.generate(
**model_inputs,
max_new_tokens=32768
)
output_ids = generated_ids[0][len(model_inputs.input_ids[0]):].tolist()
# parsing thinking content
try:
# rindex finding 151668 ()
index = len(output_ids) - output_ids[::-1].index(151668)
except ValueError:
index = 0
thinking_content = tokenizer.decode(output_ids[:index], skip_special_tokens=True).strip("\n")
content = tokenizer.decode(output_ids[index:], skip_special_tokens=True).strip("\n")
print("thinking content:", thinking_content)
print("content:", content)
```
## Citation
If you find our project useful in your research, please consider kindly citing our papers ✏️:
```
@article{zhangsh-edgerazor,
title={{EdgeRazor}: A Lightweight Framework for Large Language Models via Mixed-Precision Quantization-Aware Distillation},
author={Shu-Hao Zhang and Le-Tong Huang and Xiang-Sheng Deng and Xin-Yi Zou and Chen Wu and Nan Li and Shao-Qun Zhang},
year={2026},
journal={arXiv preprint arXiv:2605.04062}
}
```
