GPT Image 1.5 vs Gemini 3.5 Flash-Lite

OpenAI GPT Image 1.5Google Gemini 3.5 Flash-Lite
VendorOpenAIGoogle
Context window128,0001,048,576
Max output65,536
ReasoningNoYes
Tool callingNoYes
File inputYesYes
Inputtext, imagetext, image, audio, video, file
Outputimagetext
Released2025-12-162026-03-02