China's Moonshot AI claims Kimi K3 can rival OpenAI and Anthropic

Chinese AI start-up Moonshot has unveiled Kimi K3, a model with 2.8 trillion parameters that the company says can rival the leading systems from OpenAI and Anthropic, the BBC reported (https://www.bbc.co.uk/news/articles/cy9w4q8pgp0o). The full model is due to be released as open-source software on 27 July, when its coding, knowledge-work and reasoning abilities will be publicly tested.

If released as planned, Kimi K3 would become the world's first open-source model in the three-trillion-parameter class, freely downloadable, runnable and customisable by outside developers. The launch lands at a sensitive moment for the global technology sector: just weeks ago the US government forced American developer Anthropic to temporarily withdraw its flagship Fable and Mythos models over cybersecurity concerns, highlighting how Washington now treats advanced AI as critical national infrastructure subject to export controls.

Despite US restrictions on chip sales, Moonshot — heavily backed by Chinese tech giants Alibaba and Tencent — appears to be advancing independently, suggesting Chinese firms are bypassing regulatory barriers. Third-party benchmarks from Artificial Analysis and Arena.ai placed K3 on a par with OpenAI's GPT and Anthropic's Claude, and it ranked first in web-interface engineering in blind human-preference tests, outperforming Anthropic's Fable system.

The open nature of Kimi K3 stands in contrast to the closed, proprietary US systems, and Moonshot says the model is built to operate with "minimal human supervision" for engineering and coding tasks. Because running such a large model locally demands significant computing power, its open release could nonetheless disrupt Silicon Valley's commercial AI business models.

News of the model rattled Moonshot's domestic rivals: shares in Zhipu and MiniMax tumbled about 27% and 16% respectively in Hong Kong following the announcement, the BBC reported.

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