chatgpt-image-latest vs Doubao-Seedream-4.5

OpenAI chatgpt-image-latestByteDance Doubao-Seedream-4.5
VendorOpenAIByteDance
Context window——
Max output——
ReasoningNoNo
Tool callingNoNo
File inputYesYes
Inputtext, imagetext, image
Outputimageimage
Released2025-12-162025-12-03