Claude Sonnet 4.6 vs chatgpt-image-latest

Anthropic Claude Claude Sonnet 4.6OpenAI chatgpt-image-latest
VendorAnthropic ClaudeOpenAI
Context window1,000,000—
Max output128,000—
ReasoningYesNo
Tool callingYesNo
File inputYesYes
Inputtext, image, filetext, image
Outputtextimage
Released2026-02-172025-12-16