On-demand local services giant Meituan has become the latest Chinese Big Tech company to release an open-source large language model (LLM) to market, more than two years after it acquired mainland AI start-up Light Year for US$281 million. Beijing-based Meituan, the long-standing leader of China’s food delivery market, on Monday released and open-sourced its own LLM, called LongCat-Flash-Chat, via artificial intelligence developer platforms Hugging Face and GitHub, as well as the model’s official website. According to the model’s technical report, LongCat-Flash-Chat features 560 billion total parameters – the variables used to define and manipulate the input and output of models – and the so-called Mixture-of-Experts (MoE) architecture. MoE architecture divides the model into separate sub-networks, or “experts”, that specialise in a subset of the input data to jointly perform a task.

Full report : Meituan’s LongCat-Flash-Chat is on par with the performance of models from DeepSeek, Alibaba and Moonshot AI.