Meituan Releases LongCat-2.0: A 1.6T-Parameter Open MoE Model with Native 1M Context and LongCat Sparse Attention

Meituan has released LongCat-2.0, a 1.6-trillion-parameter Mixture-of-Experts model that utilizes 48 billion active parameters per token. The model incorporates a native 1-million-token context window supported by custom sparse attention technology and was developed to run on domestic AI hardware.