Kimi K3 vs Grok 4.20 Multi-Agent

Moonshot Kimi K3xAI Grok 4.20 Multi-Agent
VendorMoonshotxAI
Context window1,048,5762,048,000
Max output1,048,5761,000,000
ReasoningYesYes
Tool callingYesYes
File inputYesYes
Inputtext, image, videotext, image
Outputtexttext
Released2026-07-162026-03-09