gpt-4o-image vs Gemini 3.6 Flash

OpenAI gpt-4o-imageGoogle Gemini 3.6 Flash
VendorOpenAIGoogle
Context window—1,048,576
Max output—65,536
ReasoningNoYes
Tool callingNoYes
File inputNoYes
Inputtexttext, image, video, audio, file
Outputimage, texttext
Released—2026-05-19