GPT-5.4 Mini vs Gemini 3 Pro Preview

OpenAI GPT-5.4 MiniGoogle Gemini 3 Pro Preview
VendorOpenAIGoogle
Context window400,0001,000,000
Max output128,00064,000
ReasoningYesYes
Tool callingYesYes
File inputYesYes
Inputtext, imagetext, image, video, audio, file
Outputtexttext
Released2026-03-162025-11-18