GPT Image 2.5 Dev vs Claude Haiku 5.5

OpenAI GPT Image 2.5 DevAnthropic Claude Claude Haiku 5.5
VendorOpenAIAnthropic Claude
Context window—1,000,000
Max output—128,000
ReasoningNoYes
Tool callingNoYes
File inputYesYes
Inputtext, imagetext, image, file
Outputimagetext
Released2026-09-082026-10-07