Doubao-Seedream-5.0-pro vs grok-4-fast-non-reasoning

ByteDance Doubao-Seedream-5.0-proxAI grok-4-fast-non-reasoning
VendorByteDancexAI
Context window—2,097,152
Max output—30,000
ReasoningNoNo
Tool callingNoYes
File inputYesYes
Inputtext, imagetext, image
Outputimagetext
Released2026-07-082025-08-27