Kimi K2 Thinking is Moonshot AI’s most advanced open reasoning model to date, extending the K2 series into agentic, long-horizon reasoning. Built on the trillion-parameter Mixture-of-Experts (MoE) architecture introduced in Kimi K2, it activates 32 billion parameters per forward pass and supports 256 k-token context windows.
Input
Output
Context
262K
Max Output
66K
Parameters
1000B
Input Modalities
Output Modalities
Features
Data sourced from official provider APIs and documentation
Last updated: May 5, 2026
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