---
license: apache-2.0
base_model:
- Qwen/Qwen2.5-1.5B-Instruct
tags:
- safety
- alignment
---

# Qwen2.5-1.5B-Instruct-EASE
This model is a fine-tuned version of [Qwen/Qwen2.5-1.5B-Instruct](https://huggingface.co/Qwen/Qwen2.5-1.5B-Instruct) on the [EASE-SafetyReasoning](https://huggingface.co/datasets/HaonanShi/EASE-STAR41K-SafetyReasoning-10K) dataset.

## Model description
This is the safety reasoning aligned version model under the framework,[**EASE**](https://arxiv.org/pdf/2511.06512). We fine-tune Qwen2.5-1.5B-Instruct to enable **adaptive safety reasoning activation**. The model triggers explicit safety reasoning only under jailbreak-like semantics, while avoiding unnecessary safety reasoning on benign or general prompts. This design aims to maintain the model’s general task effectiveness and efficiency, while improving robustness against jailbreak attacks.

## Intended use
Safety-oriented research on:(1)Safety alignment, (2)Small language models and (3)Jailbreak robustness  

## Citation
If our model could help you, please cite our paper, thanks!🤗

**EASE: Practical and Efficient Safety Alignment for Small Language Models(AAAI26)(oral)** 

https://arxiv.org/pdf/2511.06512