Qwen2.5-Coder Technical Report
Authors: Binyuan Hui, Jian Yang, Zeyu Cui, Jiaxi Yang, Dayiheng Liu, Lei Zhang, Tianyu Liu, Jiajun Zhang, Bowen Yu, Kai Dang, An Yang, Rui Men, Fei Huang, Xingzhang Ren, Xuancheng Ren, Jingren Zhou, Junyang Lin
AI-generated Key Points
- The Qwen2.5-Coder series is a significant advancement in code intelligence technology
- Two distinct models: Qwen2.5-Coder-1.5B and Qwen2.5-Coder-7B, built upon the Qwen2.5 architecture
- Pretrained on an extensive corpus of over 5.5 trillion tokens for remarkable code generation capabilities
- Meticulous data cleaning processes, scalable synthetic data generation techniques, and balanced data mixing strategies were employed during development
- Outperformed larger models of comparable size in more than 10 benchmarks across various code-related tasks
- Poised to redefine research in code intelligence and set new standards for excellence in the field
- Permissive licensing approach expected to catalyze broader adoption among developers for real-world applications
Abstract: In this report, we introduce the Qwen2.5-Coder series, a significant upgrade from its predecessor, CodeQwen1.5. This series includes two models: Qwen2.5-Coder-1.5B and Qwen2.5-Coder-7B. As a code-specific model, Qwen2.5-Coder is built upon the Qwen2.5 architecture and continues pretrained on a vast corpus of over 5.5 trillion tokens. Through meticulous data cleaning, scalable synthetic data generation, and balanced data mixing, Qwen2.5-Coder demonstrates impressive code generation capabilities while retaining general versatility. The model has been evaluated on a wide range of code-related tasks, achieving state-of-the-art (SOTA) performance across more than 10 benchmarks, including code generation, completion, reasoning, and repair, consistently outperforming larger models of the same model size. We believe that the release of the Qwen2.5-Coder series will not only push the boundaries of research in code intelligence but also, through its permissive licensing, encourage broader adoption by developers in real-world applications.
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