gpt-image-1-mini vs Gemini 3.1 Pro Preview

OpenAI gpt-image-1-miniGoogle Gemini 3.1 Pro Preview
VendorOpenAIGoogle
Context window8,0001,048,576
Max output65,536
ReasoningNoYes
Tool callingNoYes
File inputYesYes
Inputtext, imagetext, image, video, audio, file
Outputimagetext
Released2025-07-312026-02-19