Kimi K2.6 vs gpt-5-pro

Moonshot Kimi K2.6OpenAI gpt-5-pro
VendorMoonshotOpenAI
Context window256,144400,000
Max output16,384272,000
ReasoningYesYes
Tool callingYesYes
File inputYesYes
Inputtext, video, file, imagetext, image
Outputtexttext
Released2026-04-202025-08-07