Claude Sonnet 5.5 vs grok-3-mini

Anthropic Claude Claude Sonnet 5.5xAI grok-3-mini
VendorAnthropic ClaudexAI
Context window1,000,000131,072
Max output128,0008,192
ReasoningYesYes
Tool callingYesYes
File inputYesNo
Inputtext, image, filetext
Outputtexttext
Released2026-09-282025-02-17