GPT-5.4 Nano vs gpt-4o-image

OpenAI GPT-5.4 NanoOpenAI gpt-4o-image
VendorOpenAIOpenAI
Context window400,000—
Max output128,000—
ReasoningYesNo
Tool callingYesNo
File inputYesNo
Inputtext, imagetext
Outputtextimage, text
Released2026-03-17—