GPT-5.4 vs Gemini 3.6 Flash

OpenAI GPT-5.4Google Gemini 3.6 Flash
VendorOpenAIGoogle
Context window1,050,0001,048,576
Max output128,00065,536
ReasoningYesYes
Tool callingYesYes
File inputYesYes
Inputtext, imagetext, image, video, audio, file
Outputtexttext
Released2026-03-042026-05-19