Qwen2.5-Coder is the latest series of the Qwen large language models, focusing on code generation, reasoning, and debugging. Based on the powerful Qwen2.5 architecture, this model was trained on 550 trillion source codes, text-code associations, synthetic data, and more, making it a leader among current open-source code language models. It not only enhances programming capabilities but also retains advantages in mathematics and general-purpose tasks.