Kimi K2.5 vs GPT-5.4 Mini

Moonshot Kimi K2.5OpenAI GPT-5.4 Mini
VendorMoonshotOpenAI
Context window256,144400,000
Max output16,384128,000
ReasoningYesYes
Tool callingYesYes
File inputYesYes
Inputtext, video, file, imagetext, image
Outputtexttext
Released2026-01-262026-03-16