GPT-6 Sol vs o4-mini

OpenAI GPT-6 SolOpenAI o4-mini
VendorOpenAIOpenAI
Context window1,050,000200,000
Max output128,000100,000
ReasoningYesYes
Tool callingYesYes
File inputYesYes
Inputtext, imagetext, image
Outputtexttext
Released2026-09-212025-04-16