gpt-4 vs gemini-2.5-pro

OpenAI gpt-4Google gemini-2.5-pro
VendorOpenAIGoogle
Context window8,1921,048,576
Max output8,19265,536
ReasoningNoYes
Tool callingYesYes
File inputYesYes
Inputtexttext, image, audio, video, file
Outputtexttext
Released2023-11-062025-03-20