chatgpt-image-latest vs Gemini 4 Argon

OpenAI chatgpt-image-latestGoogle Gemini 4 Argon
VendorOpenAIGoogle
Context window—1,048,576
Max output—65,536
ReasoningNoYes
Tool callingNoYes
File inputYesYes
Inputtext, imagetext, image, video, audio, file
Outputimagetext
Released2025-12-162026-10-13