MiMo-V2.6-Pro UltraSpeed vs GPT Image 2.5 Dev

Xiaomi MiMo-V2.6-Pro UltraSpeedOpenAI GPT Image 2.5 Dev
VendorXiaomiOpenAI
Context window1,048,576—
Max output131,072—
ReasoningYesNo
Tool callingYesNo
File inputYesYes
Inputtext, image, audio, videotext, image
Outputtextimage
Released2026-09-222026-09-08