Moonshot AI's Kimi K3 model packs 2.8 trillion parameters and challenges OpenAI and Anthropic, sending ripples through AI stocks and risk assets including

The FT reports Kimi K3 will be the largest open AI model from China, with a parameter count between 2 trillion and 3 trillion.

Moonshot AI released Kimi K3, a 2.8 trillion-parameter open-source AI model from China that rivals OpenAI, Anthropic and other top U.S. systems in frontier AI benchmarks.

Moonshot AI's Kimi K3 is the largest open-weight model ever released - 2.8 trillion parameters, a million-token memory, benchmark scores within touching distance of GPT-5.6 Sol,…