Chinese start-up Moonshot AI has suspended new subscriptions for its groundbreaking new model Kimi K3 as surging demand squeezes its computing power, underscoring the challenges Chinese AI labs face in serving their products to global users. “Over the past 48 hours, demand has pushed close to the limits of our current capacity,” Beijing-based Moonshot AI said in a statement posted on X on Sunday. “Our GPUs [graphics processing units] are feeling it.” It had “temporarily paused new...