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license: apache-2.0
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## 📖 Introduction
# DistilQwen2.5-DS3-0324 系列快思考推理模型
## 概述
在平衡高效推理与思维能力的行业挑战下DistilQwen2.5-DS3-0324系列创新性地将DeepSeekV3-0324的快思考能力迁移到轻量模型中。通过两阶段蒸馏框架该系列在保持高性能的同时实现
- **推理速度提升**输出token数减少60-80%(相比慢思考模型)
- **资源消耗降低**:适合边缘计算部署
- **认知偏差消除**:独创的轨迹对齐技术
## 核心创新
### 1. 快思考蒸馏框架
- **阶段一快思考CoT数据收集**
- **Long-to-Short改写**从DeepSeek-R1提炼关键推理步骤
- **教师模型蒸馏**提取DeepSeekV3-0324的快速推理轨迹
- **阶段二CoT轨迹认知对齐**
- **动态难度分级**(简单/中等/困难)
- LLM-as-a-Judge评估小模型可理解性
- 简单链扩展 → 补充必要步骤
- 困难链精简 → 移除高阶逻辑跳跃
- **验证机制**:迭代优化直至所有数据达"中等"评级
### 2. 性能突破
- **32B模型**在GPQA Diamond基准接近10倍参数量的闭源模型
- **推理效率**显著提升(见下表对比)
| 模型 | MMLU_PRO Tokens | AIME2024 Tokens | 速度增益 |
|--------------------------------|-----------------|-----------------|----------|
| DistilQwen2.5-R1-32B (慢思考) | 4198 | 12178 | 1x |
| DistilQwen2.5-DS3-0324-32B | 690 | 4177 | 5-8x |
## 技术优势
- **双阶段蒸馏**:先压缩推理长度,再对齐认知轨迹
- **动态数据优化**:自适应难度调整确保知识可迁移性
- **开源兼容**基于Qwen2.5基座模型微调
## 🚀 快速开始
```python
from modelscope import AutoModelForCausalLM, AutoTokenizer
model = AutoModelForCausalLM.from_pretrained(
"PAI/DistilQwen2.5-DS3-0324-32B",
torch_dtype="auto",
device_map="auto"
)
tokenizer = AutoTokenizer.from_pretrained("PAI/DistilQwen2.5-DS3-0324-32B")
prompt = "Give me a short introduction to large language model."
messages=[
{"role": "system", "content": "You are Qwen, created by Alibaba Cloud. You are a helpful assistant. You should think step-by-step."},
{"role": "user", "content": prompt},
]
text = tokenizer.apply_chat_template(
messages,
tokenize=False,
add_generation_prompt=True
)
model_inputs = tokenizer([text], return_tensors="pt").to(device)
generated_ids = model.generate(
model_inputs.input_ids,
max_new_tokens=2048
)
generated_ids = [
output_ids[len(input_ids):] for input_ids, output_ids in zip(model_inputs.input_ids, generated_ids)
]
response = tokenizer.batch_decode(generated_ids, skip_special_tokens=True)[0]
```