Maintenance in progress

meituan open-sourced longcat-2.0, a 1.6-trillion-parameter mixture-of-experts coding model trained exclusively on a 50,000-card cluster of domestic chinese chips. the model handles up to one million token context windows and activates 33-56 billion parameters per token. this is a publicly verifiable demonstration that large-scale frontier model training can proceed without us-restricted semiconductor hardware — a structural data point in the us-china ai export control contest.

chinese tech industry sources and open-source model release channels