Grok 4.20 Multi-Agent vs o3-deep-research

xAI Grok 4.20 Multi-AgentOpenAI o3-deep-research
VendorxAIOpenAI
Context window2,048,000200,000
Max output1,000,000100,000
ReasoningYesYes
Tool callingYesYes
File inputYesYes
Inputtext, imagetext, image
Outputtexttext
Released2026-03-082024-06-26