Claude Opus 4.1 vs o4-mini

Anthropic Claude Claude Opus 4.1OpenAI o4-mini
VendorAnthropic ClaudeOpenAI
Context window200,000200,000
Max output32,000100,000
ReasoningYesYes
Tool callingYesYes
File inputYesYes
Inputtext, imagetext, image
Outputtexttext
Released2025-08-052025-04-16