Kimi K2 Instruct 0905
Moonshot AI · 2025-09-05 · 1T parameters
Kimi K2 Instruct 0905 is Moonshot AI's September 2025 open-weight update to Kimi K2 Instruct, retaining K2's trillion-parameter MoE architecture and base pretrained on a reported 15.5T tokens. The checkpoint improves agentic coding, frontend coding, and tool use, extends the supported context from 128K to 256K tokens, and has approximately 32.6B activated parameters according to the K2 technical report.