Moonshot Halts New Subscriptions for Kim K3 AI Model
The Chinese artificial intelligence firm Moonshot has paused new subscriptions for its recently launched Kim K3 model. This decision comes in response to overwhelming demand, just days after it became available and was noted for its features that rival those of OpenAI and Anthropic.
Based in Beijing, Moonshot announced on Sunday that it would temporarily prioritize services for its existing paying customers while dealing with what it described as “unprecedented computing challenges.” The Kim K3 is notable for being the largest open-source language model released, with an impressive 2.8 trillion parameters.
“Kimi K3 is getting a lot more attention than we anticipated, and our GPUs are feeling the pressure,” the company stated in a post. “In the last 48 hours, demand has nearly reached the limits of our current production capacity.”
Moonshot was founded in 2023 by Yang Zhilin, an AI researcher with a background from Carnegie Mellon University. The firm is part of a wave of Chinese AI startups that have gained traction recently, offering powerful open-source models at a significantly lower cost compared to offerings from Anthropic and OpenAI.
In benchmark comparisons, the Kimi K3 has outshined Anthropic’s Opus 4.8 and OpenAI’s ChatGPT 5.5 in most coding tasks. Still, it falls short when stacked against Anthropic’s leading-edge Fable model.
Meanwhile, Reuters has reported, citing sources familiar with the situation, that Moonshot is engaging with Goldman Sachs and other entities regarding a potential initial public offering (IPO) in Hong Kong.
To date, the company has secured over $5.5 billion from investors and is on the lookout for an additional $2 billion in new capital. As of June, Moonshot’s valuation stood at $30 billion.
Some U.S. officials are expressing concerns that Chinese companies are potentially closing the gap with American firms in AI advancements. This is despite strict export controls aimed at limiting China’s access to the top-tier computer chips produced by Nvidia.
In recent news, Anthropic and OpenAI have accused certain Chinese competitors of employing fraudulent distillation—essentially using more advanced AI models to enhance new model development and allegedly to pilfer technology.
Back in February, there were direct accusations made against Moonshot, alongside two other Chinese firms, DeepSeek and Minimax, involving the distillation of technology. So far, Anthropic has not confirmed whether distillation methods were utilized in the creation of the Kim K3.
