kimi-k2-thinking vs gpt-4-gizmo-*

Moonshot kimi-k2-thinkingOpenAI gpt-4-gizmo-*
VendorMoonshotOpenAI
Context window262,144—
Max output262,144—
ReasoningYesNo
Tool callingYesNo
File inputYesNo
Inputtexttext, image
Outputtexttext
Released2025-11-06—