Grok 4.20 Multi-Agent vs gpt-4o-mini-transcribe

xAI Grok 4.20 Multi-AgentOpenAI gpt-4o-mini-transcribe
VendorxAIOpenAI
Context window2,048,000
Max output1,000,000
ReasoningYesNo
Tool callingYesNo
File inputYesNo
Inputtext, imagetext, audio
Outputtexttext
Released2026-03-082025-03-19