Gemini 3.5 Flash vs o3-mini

Google Gemini 3.5 FlashOpenAI o3-mini
VendorGoogleOpenAI
Context window1,048,576200,000
Max output65,536100,000
ReasoningYesYes
Tool callingYesYes
File inputYesNo
Inputtext, image, video, audio, filetext
Outputtexttext
Released2026-05-192024-12-20