gpt-4o-image vs Gemini 3 Pro Preview

OpenAI gpt-4o-imageGoogle Gemini 3 Pro Preview
VendorOpenAIGoogle
Context window1,000,000
Max output64,000
ReasoningNoYes
Tool callingNoYes
File inputNoYes
Inputtexttext, image, video, audio, file
Outputimage, texttext
Released2025-11-18