Grok 4.6 vs gpt-4o-all

xAI Grok 4.6OpenAI gpt-4o-all
VendorxAIOpenAI
Context window500,000—
Max output2,000,000—
ReasoningYesNo
Tool callingYesNo
File inputYesNo
Inputtext, image—
Outputtext—
Released2026-08-13—