Shares of Meituan-W (03690) climbed more than 3% during afternoon trading. At the time of writing, the stock was up 2.93% to HK$73.70, with a trading turnover of HK$2.029 billion.

The company announced on July 6th, via its LongCat large model official social media account, the formal open-sourcing of its trillion-parameter AI model, LongCat-2.0. The LongCat-2.0 model features a total of 1.6 trillion parameters, with an average activation of approximately 48 billion. Its architecture incorporates LongCat sparse attention and N-gram Embedding, which enhances long-context processing efficiency and token-level representation capabilities. This, combined with dynamic activation, further strengthens its performance in code comprehension, generation, and execution.

The open-source release includes multiple precision versions such as BF16, FP8, and INT8, comprehensively covering deployment needs across different computing platforms. The company is also open-sourcing its inference optimization achievements specifically tailored for domestic computing hardware. This initiative means that LongCat-2.0 can be run stably on existing hardware, even without access to the latest computing power.