chatgpt-image-latest vs gemini-2.5-pro

OpenAI chatgpt-image-latestGoogle gemini-2.5-pro
VendorOpenAIGoogle
Context window—1,048,576
Max output—65,536
ReasoningNoYes
Tool callingNoYes
File inputYesYes
Inputtext, imagetext, image, audio, video, file
Outputimagetext
Released2025-12-162025-03-20