Moonshot AI Restricts New Kimi K3 Registrations Due to Compute Constraints
Chinese startup Moonshot AI has temporarily suspended new user registrations and subscriptions for its newly released Kimi K3 model. The company is prioritizing existing subscribers while working to optimize model efficiency and secure additional computing power. This resource crunch highlights the massive computing challenges faced by leading LLM providers as they scale up highly complex models. It also underscores the intense market demand for advanced AI models capable of handling long-context tasks and agentic coding. Released on July 16, 2026, Kimi K3 is a 2.8-trillion-parameter Mixture-of-Experts (MoE) model featuring a 1-million-token context window. The company plans to open-source the model's weights by late July 2026.
## BACKGROUND
Moonshot AI is a prominent Chinese AI startup known for its Kimi chatbot series. A model's context window determines how much text it can process and remember at one time, which is crucial for complex tasks like long-form coding and document analysis but requires immense computational resources.