Overwhelmed Within Two Days of Launch: Moonshot AI Kimi K3 Open-Source Model Goes Global With 41% of World Open-Source Downloads and 4x Paid User Growth Overseas

Moonshot AI launched Kimi K3, the largest open-source language model globally, with 2.8 trillion parameters. Within two days of its release, new consumer subscriptions were suspended due to overwhelming demand, highlighting a supply-demand imbalance. Huang Zhenxin, head of enterprise business at Moonshot, described the launch response as unprecedented, allowing any global SME to deploy frontier-scale model capabilities for free. This open-source decision positions Kimi K3 as a direct challenge to DeepSeek's dominance in the open-weight ecosystem.