Grok 4.7 vs Doubao-Seedream-4.5

xAI Grok 4.7ByteDance Doubao-Seedream-4.5
VendorxAIByteDance
Context window500,000—
Max output——
ReasoningYesNo
Tool callingYesNo
File inputYesYes
Inputtext, imagetext, image
Outputtextimage
Released2026-09-212025-12-03