gpt-4 vs Grok 4.20 Multi-Agent

OpenAI gpt-4xAI Grok 4.20 Multi-Agent
VendorOpenAIxAI
Context window8,1922,048,000
Max output8,1921,000,000
ReasoningNoYes
Tool callingYesYes
File inputYesYes
Inputtexttext, image
Outputtexttext
Released2023-11-062026-03-08