Claude Sonnet 4.6 vs GPT-6 Sol

Anthropic Claude Claude Sonnet 4.6OpenAI GPT-6 Sol
VendorAnthropic ClaudeOpenAI
Context window1,000,0001,050,000
Max output128,000128,000
ReasoningYesYes
Tool callingYesYes
File inputYesYes
Inputtext, image, filetext, image
Outputtexttext
Released2026-02-172026-09-22