GPT-5.2 Pro vs Kimi K2.5

OpenAI GPT-5.2 ProMoonshot Kimi K2.5
VendorOpenAIMoonshot
Context window400,000256,144
Max output128,00016,384
ReasoningYesYes
Tool callingYesYes
File inputYesYes
Inputtext, imagetext, video, file, image
Outputtexttext
Released2025-12-112026-01-27