Gemini 3 Pro Preview vs GPT-5.4 Mini

Google Gemini 3 Pro PreviewOpenAI GPT-5.4 Mini
VendorGoogleOpenAI
Context window1,000,000400,000
Max output64,000128,000
ReasoningYesYes
Tool callingYesYes
File inputYesYes
Inputtext, image, video, audio, filetext, image
Outputtexttext
Released2025-11-182026-03-16