Kimi K3: Moonshot’s AI Model Pauses Sign-ups Due to Overwhelming Demand
Kimi K3 was meant to prove open AI can match the West. Within 48 hours, demand for the hosted version pushed Moonshot’s GPUs to their limit, and the company stopped selling new subscriptions.
July 20, 2026 – 10:44 am
Image by: Moonshot AI
Moonshot AI has a problem most startups would envy. Its new Kimi K3 model proved so popular that it ran out of computing power to serve everyone. So the Chinese lab has hit pause on new sign-ups.
Over the past 48 hours, demand “pushed close to the limits of our current capacity,” the company stated on X. Put more plainly: "Our GPUs are feeling it."
What Moonshot Changed
New subscriptions are paused for now. Existing subscribers are not affected, and Moonshot says it is allocating all its spare compute to keep the service stable. New slots will reopen in stages, in controlled batches rather than all at once.
The company also split its plans into two tiers:
- Kimi Membership: Covers the web, app, and Work products.
- Kimi Code Membership: Handles programming.
This distinction matters. Coding and agentic tasks are computationally intensive, involving long chains of reasoning and large chunks of context. Ring-fencing the coders helps prevent them from draining the pool.
The Paradox of Open Weights
Here’s the twist: Kimi K3 is billed as the world’s largest open-weight model, at 2.8 trillion parameters. Open weights are supposed to ease the strain on any single provider, as anyone can download the model and run it themselves.
For now, they cannot. Moonshot will not release the K3 weights until July 27th. Until then, the only way to use the model is through Moonshot’s own apps and API, putting all that demand on one company’s servers.
And this is not a model you run on a laptop. Kimi K3 needs a multi-GPU rig, on the order of eight H100 or H200 chips just to serve it, by one estimate. It also carries a one-million-token context window and handles text and images, features that make each session hungrier still.
The Future
The weight release on July 27th is the pressure valve. Once the files are public, big customers and cloud providers can host K3 themselves and skip Moonshot’s queue. Casual users, though, will still lean on the apps, so the crunch may ease rather than vanish.
Turning a viral moment into money, Moonshot is now converting that attention into paying customers. Annual recurring revenue hit $300 million in June, up from $200 million in April.