LongCat 2.0

LongCat 2.0 is Meituan's open-weight mixture-of-experts large language model with approximately 1.6 trillion total parameters and 48 billion active parameters per token, optimized for long-context reasoning, coding, and agentic tool-use workflows. It is available via chat demo and an API platform, and was open-sourced by Meituan in June 2026. Source: supabase.