GPT Image 2 Develop vs Nano Banana 2 (Gemini 3.1 Flash Image 🍌)

OpenAI GPT Image 2 DevelopGoogle Nano Banana 2 (Gemini 3.1 Flash Image 🍌)
VendorOpenAIGoogle
Context window128,00065,536
Max output32,768
ReasoningNoYes
Tool callingNoNo
File inputYesYes
Inputtext, imagetext, image
Outputimageimage
Released2026-04-192026-05-27