Claude Haiku 5.5 vs GPT Image 1.5

Anthropic Claude Claude Haiku 5.5OpenAI GPT Image 1.5
VendorAnthropic ClaudeOpenAI
Context window1,000,000128,000
Max output128,000—
ReasoningYesNo
Tool callingYesNo
File inputYesYes
Inputtext, image, filetext, image
Outputtextimage
Released2026-10-072025-12-16