Kimi K2 Thinking
Moonshot AI · 2025-11-06 · 1.1T parameters
Kimi K2 Thinking is Moonshot AI's open-weight thinking-agent checkpoint released in November 2025. It is a one-trillion-parameter MoE with 32B active parameters, a 256K-token context window, native step-by-step reasoning interleaved with tool calls, and an INT4 checkpoint produced with quantization-aware post-training.