gpt-4o vs gemini-2.5-pro

OpenAI gpt-4oGoogle gemini-2.5-pro
VendorOpenAIGoogle
Context window128,0001,048,576
Max output16,38465,536
ReasoningNoYes
Tool callingYesYes
File inputYesYes
Inputtext, imagetext, image, audio, video, file
Outputtexttext
Released2024-05-132025-03-20