Introducing LongCat-2.0 - , a large-scale MoE language model with 1.6 trillion total parameters and ~48 billion activated per token. This was the stealth model that was on Openrouter under the name 'owl-alpha'.

LongCat-2.0 is a Mixture-of-Experts model featuring 1.6 trillion total parameters and 48 billion activated parameters per token. Previously identified as owl-alpha on OpenRouter, the architecture optimizes sparse activation to manage high total parameter counts.