Grok 4.6 vs Gemini 3 Pro Preview

xAI Grok 4.6Google Gemini 3 Pro Preview
VendorxAIGoogle
Context window500,0001,000,000
Max output2,000,00064,000
ReasoningYesYes
Tool callingYesYes
File inputYesYes
Inputtext, imagetext, image, video, audio, file
Outputtexttext
Released2026-08-122025-11-18