o4-mini vs kimi-k2-thinking

OpenAI o4-miniMoonshot kimi-k2-thinking
VendorOpenAIMoonshot
Context window200,000262,144
Max output100,000262,144
ReasoningYesYes
Tool callingYesYes
File inputYesYes
Inputtext, imagetext
Outputtexttext
Released2025-04-162025-11-06