Moonshot AI suspends new subscriptions for Kimi K3 as overwhelming demand tests the capacity of the world's largest open-source AI model.

Moonshot AI has temporarily suspended new subscriptions for its Kimi K3 model after a surge in demand pushed the system's capacity to its limits within days of launch. The Beijing-based startup reported that the 2.8-trillion-parameter model received significantly more interest than anticipated, forcing the company to prioritize existing users while it adds more compute infrastructure. Kimi K3 has emerged as a serious competitor to American models from OpenAI and Anthropic, offering a professional coding tool that costs roughly one-third of its rivals. While the model provides high-quality results, it currently requires more time to complete tasks than its U.S. counterparts. The release highlights a growing technological arms race between the U.S. and China. Investors like Bill Ackman warn that China’s aggressive investment in data centers and architectural innovation could challenge U.S. dominance. As Chinese models become more affordable and efficient, they may shift the global balance of power in the race for artificial superintelligence.

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