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

ByteDance Doubao-Seedream-5.0-liteOpenAI gpt-5-pro
VendorByteDanceOpenAI
Context window—400,000
Max output—272,000
ReasoningNoYes
Tool callingNoYes
File inputNoYes
Inputtext, imagetext, image
Outputimagetext
Released2026-02-132025-08-07