China's New AI Model Halts New Subscriptions As Demand Swamps Capacity

Moonshot AI has temporarily paused new subscriptions for its Kimi K3 model after demand surged beyond the company's current capacity within days of the launch. The open-source Chinese AI model, described as one of the largest of its kind at 2.8 trillion parameters, has rattled U.S. rivals by beating Anthropic's Fable 5 and OpenAI's GPT-5.6 Sol in front-end coding tests. The Associated Press reports: "Kimi K3 has received far more love than we expected," Moonshot AI, which is Beijing-based, wrote in a X post late on Sunday. "Over the past 48 hours, demand has pushed close to the limits of our current capacity." Moonshot said that it's prioritizing existing subscribers and would be temporarily pausing new ones. "We're adding capacity as fast as we can and will reopen new subscription spots in batches," it added. The AI startup also posted a similar message on Chinese social media. "New model releases generally trigger massive interest, which can strain existing compute infrastructure," said Lian Jye Su, a chief analyst at the technology research and advisory group Omdia. "This does show Moonshot AI does not have sufficient compute chips to serve the current surge in demand." Su said that the key reason was more likely due to Moonshot not fully anticipating the surge in K3's popularity. K3 is "very demanding" in terms of compute requirements, he said, making compute allocation challenging and expensive.

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