Meituan releases 3.56TB LongCat-2.5 weights

Meituan (3690.HK) released the weights for its LongCat-2.5 model on Hugging Face on November 9, publishing 208 weight files totaling 3.56TB under an MIT license, nine days after introducing the model in a November 2 technical blog post. The release gives developers direct access to the model files, though the MIT license does not extend trademark or patent rights, and it does not mean training data or the full training process were disclosed—only the weight files that make up the model. The move matters because it puts a large, openly licensed model directly in developers' hands, and the next thing to watch is how the developer community adopts and builds on the weights.