DistilQwen2.5: Industrial Practices of Training Distilled Open Lightweight Language Models

Fuente: arXiv
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Autores principales: Wang, Chengyu, Yan, Junbing, Yue, Yuanhao, Huang, Jun
Formato: Preprint
Publicado: 2025
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author Wang, Chengyu
Yan, Junbing
Yue, Yuanhao
Huang, Jun
author_facet Wang, Chengyu
Yan, Junbing
Yue, Yuanhao
Huang, Jun
contents Enhancing computational efficiency and reducing deployment costs for large language models (LLMs) have become critical challenges in various resource-constrained scenarios. In this work, we present DistilQwen2.5, a family of distilled, lightweight LLMs derived from the public Qwen2.5 models. These distilled models exhibit enhanced instruction-following capabilities compared to the original models based on a series of distillation techniques that incorporate knowledge from much larger LLMs. In our industrial practice, we first leverage powerful proprietary LLMs with varying capacities as multi-agent teachers to select, rewrite, and refine instruction-response pairs that are more suitable for student LLMs to learn. After standard fine-tuning, we further leverage a computationally efficient model fusion approach that enables student models to progressively integrate fine-grained hidden knowledge from their teachers. Experimental evaluations demonstrate that the distilled models possess significantly stronger capabilities than their original checkpoints. Additionally, we present use cases to illustrate the applications of our framework in real-world scenarios. To facilitate practical use, we have released all the DistilQwen2.5 models to the open-source community.
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spellingShingle DistilQwen2.5: Industrial Practices of Training Distilled Open Lightweight Language Models
Wang, Chengyu
Yan, Junbing
Yue, Yuanhao
Huang, Jun
Computation and Language
Enhancing computational efficiency and reducing deployment costs for large language models (LLMs) have become critical challenges in various resource-constrained scenarios. In this work, we present DistilQwen2.5, a family of distilled, lightweight LLMs derived from the public Qwen2.5 models. These distilled models exhibit enhanced instruction-following capabilities compared to the original models based on a series of distillation techniques that incorporate knowledge from much larger LLMs. In our industrial practice, we first leverage powerful proprietary LLMs with varying capacities as multi-agent teachers to select, rewrite, and refine instruction-response pairs that are more suitable for student LLMs to learn. After standard fine-tuning, we further leverage a computationally efficient model fusion approach that enables student models to progressively integrate fine-grained hidden knowledge from their teachers. Experimental evaluations demonstrate that the distilled models possess significantly stronger capabilities than their original checkpoints. Additionally, we present use cases to illustrate the applications of our framework in real-world scenarios. To facilitate practical use, we have released all the DistilQwen2.5 models to the open-source community.
title DistilQwen2.5: Industrial Practices of Training Distilled Open Lightweight Language Models
topic Computation and Language
url https://arxiv.org/abs/2504.15027