Gemini Omni Flash Preview vs chatgpt-image-latest

Google Gemini Omni Flash PreviewOpenAI chatgpt-image-latest
VendorGoogleOpenAI
Context window65,536
Max output32,768
ReasoningYesNo
Tool callingNoNo
File inputYesYes
Inputtext, imagetext, image
Outputvideoimage
Released2026-06-292025-12-15