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Jul 27, 2026

Moonshot AI Releases Kimi K3 as World's Largest Open-Weight Model at 2.8 Trillion Parameters

Chinese AI company Moonshot AI has released the full weights of its Kimi K3 model, making the 2.8 trillion parameter system freely downloadable. The release raises questions about deployment practicality and trust in Chinese open-weight models despite the technical milestone.

Jul 27, 2026·4 sources
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Top claims

  • ▪Kimi K3 is a Mixture-of-Experts model that utilizes 896 experts and activates 16 experts per token
  • ▪Social media claims that Kimi K3 went from initial launch to open weights in under 24 hours are inaccurate
  • ▪Running the full Kimi K3 model locally requires at least eight H100-class GPUs or a single node of eight H200 GPUs

Subtopics

AI foundation models1AI safety & social impact1China tech & industrial strategy1Large language models (LLMs)1Open weights vs closed models1Open-source AI1

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