gpt-image-1-mini vs gpt-5-nano

OpenAI gpt-image-1-miniOpenAI gpt-5-nano
VendorOpenAIOpenAI
Context window8,000400,000
Max output—128,000
ReasoningNoYes
Tool callingNoYes
File inputYesYes
Inputtext, imagetext, image
Outputimagetext
Released2025-07-312025-08-07