Nathan Lambert@natolambert · X美团发布基座推理模型LongCat-2.0（v2），采用MoE架构，总参1.6T，活跃约48B，支持1M上下文。专为智能体编程设计，引入LongCat Sparse Attention、Zero-Compute Experts及MOPD任务路由。基准测试中SWE-bench Pro达59.5（超GPT-5.5的58.6），多项Agent评测领先。模型已在OpenRouter上线，技术博客公开。美团强调全栈自研与低成本，v2基于ASIC训练。
When we were in China， @xeophon and I made a quick detour to visit Meituan. They continue to be one of our favorite open model builders， as they're showing how a variety of companies can succeed here and baffle a lot of people as to why they're making models.
Meituan is one of the larger tech companies in China. They're building LLMs to add services to their own products. In China the notion of the "super app" is very popular， so this dream of more services for users with AI is very natural there.
With this， Meituan wants to own the full stack of how they deliver value to their users. When we visited， they were very unassuming about everything. We just met a few people from the LLM team， a quick meeting about building models.