Meituan open-sources its next-generation trillion-parameter large-scale model, LongCat-2.0.

Meituan has officially open-sourced its trillion-parameter large-scale model, LongCat-2.0. With a total of 1.6T parameters and an average activation of 48B, it is the industry's first model to complete the entire training and inference process on a domestic computing cluster with 50,000 GPUs. The model natively supports 1MB ultra-long contexts and is optimized for Agentic Coding tasks. The preview version has already ranked among the top three in global OpenRouter usage.