gpt-5-pro vs Kimi K2.6

OpenAI gpt-5-proMoonshot Kimi K2.6
VendorOpenAIMoonshot
Context window400,000256,144
Max output272,00016,384
ReasoningYesYes
Tool callingYesYes
File inputYesYes
Inputtext, imagetext, video, file, image
Outputtexttext
Released2025-08-072026-04-19