GPT Image 1.0 vs Kimi K2.5

OpenAI GPT Image 1.0Moonshot Kimi K2.5
VendorOpenAIMoonshot
Context window128,000256,144
Max output—16,384
ReasoningNoYes
Tool callingNoYes
File inputYesYes
Inputtext, imagetext, video, file, image
Outputimagetext
Released2025-04-232026-01-27