Moonshot AI Launches Kimi K3.1 Pro, Open-Weight Model Strengthening Company's Fourth-Ranked Position Among AI Labs

Moonshot AI has released Kimi K3.1 Pro, its most capable open-weight model to date, advancing the Beijing-based startup's competitive position in the global AI landscape. The model, featuring a 1-million-token context window and 2.8 trillion parameters, arrives as Moonshot solidifies its standing as the fourth-ranked AI lab by overall capability, competing directly with Anthropic, OpenAI, and Google.