GPT-6 Sol vs DeepSeek-V4-Flash

OpenAI GPT-6 SolDeepSeek DeepSeek-V4-Flash
VendorOpenAIDeepSeek
Context window1,050,0001,000,000
Max output128,000384,000
ReasoningYesYes
Tool callingYesYes
File inputYesYes
Inputtext, imagetext
Outputtexttext
Released2026-09-222026-04-24