Qwen2.5 is a series of novel language models built on the Qwen2 language model, which includes a general language model Qwen2.5, as well as specialized models aimed at programming (Qwen2.5-Coder) and mathematics (Qwen2.5-Math). These models have been pre-trained on extensive datasets, demonstrating robust knowledge comprehension and multilingual support, making them suitable for various complex natural language processing tasks. Their primary advantages include higher knowledge density, enhanced programming and mathematical capabilities, and better understanding of long texts and structured data. The release of Qwen2.5 marks a significant advancement in the open-source community, providing developers and researchers with powerful tools to drive research and development in the field of artificial intelligence.