China's Moonshot unveils world's largest open AI model, closing in on US rivals
Moonshot said the model can handle 1 million tokens and will publish full weights by July 27, aiming to narrow the gap with U.S. rivals.
- On Thursday, July 16, 2026, Chinese AI lab Moonshot released Model Kimi K3, an Open Frontier Intelligence model featuring 2.8 Trillion Parameters now available across Kimi Work, Kimi Code, and the Kimi API.
- The release aims to close the performance gap between Chinese models and frontier counterparts like OpenAI's ChatGPT and Anthropic's Opus, with Financial Times reporting the model is expected to perform at par with or surpass Anthropic's Opus 4.8.
- Model Kimi K3 utilizes Kimi Delta Attention and Attention Residuals to improve information flow across sequence length and model depth, enabling up to 6.3x faster decoding in Million Context lengths.
- Developers scaled up Mixture of Experts sparsity, activating 16 out of 896 Experts when paired with a Stable LatentMoE framework, yielding an approximate 2.5 improvement in overall scaling efficiency.
- Moonshot is reportedly raising capital at a $31.5 billion valuation, building on a $2 billion round in May, and will release Open Weights for the model by July 27, 2026.
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The Chinese start-up Moonshot has introduced a new AI model. Kimi K3 is expected to compete with the leading OpenAI and Anthropic systems, exacerbating the global AI competition.
Chinese artificial intelligence startup Moonshot unveiled on Friday (17) the Kimi K3, a model with 2.8 trillion parameters that, according to the company, is the world's largest open-source AI system and achieves performance close to Fable, from the American company Anthropic. The launch comes a month after the United States government abruptly removed Anthropic's Fable and Mythos models due to security concerns. The move highlights the speed at…
China's Moonshot AI is the world's largest freely available AI model with Kimi K3 – and the US competition is under great pressure.
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