gpt-4o vs Grok 4.20 Multi-Agent

OpenAI gpt-4oxAI Grok 4.20 Multi-Agent
VendorOpenAIxAI
Context window128,0002,048,000
Max output16,3841,000,000
ReasoningNoYes
Tool callingYesYes
File inputYesYes
Inputtext, imagetext, image
Outputtexttext
Released2024-05-132026-03-08