Doubao-Seedream-4.5 vs gpt-4.1-mini

ByteDance Doubao-Seedream-4.5OpenAI gpt-4.1-mini
VendorByteDanceOpenAI
Context window—1,047,576
Max output—32,768
ReasoningNoNo
Tool callingNoYes
File inputYesYes
Inputtext, imagetext, image
Outputimagetext
Released2025-09-262025-04-14