Core Insights - Meituan officially launched LongCat-Flash-Chat on September 1, making it open-source on platforms like Github and Hugging Face [1] - LongCat-Flash utilizes an innovative Mixture-of-Experts (MoE) architecture with a total of 560 billion parameters and activated parameters ranging from 18.6 billion to 31.3 billion, averaging 27 billion [1] - Since 2025, Meituan has released several AI applications, including AI Coding Agent, NoCode, AI business decision assistant, and industry-specific AI Agent Meituan Jibai, indicating a strong commitment to AI development [1] - The company's AI strategy is built on three levels: AI at work, AI in products, and Building LLM, with the open-sourcing of this model marking the first exposure of its progress in Building LLM [1]