o4-mini vs Grok 4.20 Multi-Agent

OpenAI o4-minixAI Grok 4.20 Multi-Agent
VendorOpenAIxAI
Context window200,0002,048,000
Max output100,0001,000,000
ReasoningYesYes
Tool callingYesYes
File inputYesYes
Inputtext, imagetext, image
Outputtexttext
Released2025-04-162026-03-08