Doubao-Seedream-4.5 vs gpt-4

ByteDance Doubao-Seedream-4.5OpenAI gpt-4
VendorByteDanceOpenAI
Context window—8,192
Max output—8,192
ReasoningNoNo
Tool callingNoYes
File inputYesYes
Inputtext, imagetext
Outputimagetext
Released2025-09-262023-11-06