Grok 4.20 (Non-Reasoning) vs Claude Sonnet 4.6

xAI Grok 4.20 (Non-Reasoning)Anthropic Claude Claude Sonnet 4.6
VendorxAIAnthropic Claude
Context window2,000,0001,000,000
Max output2,000,000128,000
ReasoningNoYes
Tool callingYesYes
File inputYesYes
Inputtext, imagetext, image
Outputtexttext
Released2026-03-082026-02-16