FrontierThe story, in brief
LongCat-2.0, a large-scale MoE model with 1.6T total and 48B Active
1.6T parameters. 48B active. LongCat-2.0 just proved MoE scales past the giants.
The KeyNews take
Why it matters
LongCat-2.0 demonstrates that open-source MoE architectures can achieve competitive scale with frontier models, challenging the narrative that only well-funded labs can build cutting-edge systems. The 48B active parameter count suggests efficient routing and cost-effective inference—a key variable for deployment economics.
The key facts
10 to know1.6T total parameters
48B active parameters
MoE (Mixture of Experts) architecture
Open-source release
Published June 30, 2026
47 HN points, 12 comments (modest engagement)
LongCat-2.0: 1.6T total parameters
48B active parameters (MoE architecture)
Hacker News engagement: 47 points, 12 comments
Open-source release via longcat.chat
Go to the source
Hacker Newslongcat.chat
Publisher excerpt: Article URL: Comments URL: Points: 47 # Comments: 12