GPT Image 1.0 vs Claude Sonnet 5

OpenAI GPT Image 1.0Anthropic Claude Claude Sonnet 5
VendorOpenAIAnthropic Claude
Context window128,0001,000,000
Max output—128,000
ReasoningNoYes
Tool callingNoYes
File inputYesYes
Inputtext, imagetext, image, file
Outputimagetext
Released2025-04-232026-06-30