Doubao-Seedream-5.0-pro vs gpt-5-mini

ByteDance Doubao-Seedream-5.0-proOpenAI gpt-5-mini
VendorByteDanceOpenAI
Context window400,000
Max output128,000
ReasoningNoYes
Tool callingNoYes
File inputYesYes
Inputtext, imagetext, image
Outputimagetext
Released2026-07-072025-08-07