Moonshot AI has not announced or released a Kimi K4 model as of November 2026, with the company instead shipping Kimi K3.1 Pro—an upgraded post-trained version of the 2.8-trillion-parameter K3—on October 23. This latest release adds stronger coding, financial research, and 3D capabilities while planning open weights by November 4, continuing Moonshot’s pattern of frequent point releases after K3 debuted in July. K4 remains unconfirmed, with speculation tied only to earlier reports of Blackwell GPU procurement for a larger next-generation base model expected in 2027. Competitive pressure from U.S. labs and potential export controls on advanced chips add uncertainty, making any 2026 launch dependent on unverified internal timelines rather than public signals.