gpt-3.5-turbo-16k vs Gemini 3 Pro Preview

OpenAI gpt-3.5-turbo-16kGoogle Gemini 3 Pro Preview
VendorOpenAIGoogle
Context window16,3851,000,000
Max output4,09664,000
ReasoningNoYes
Tool callingYesYes
File inputNoYes
Inputtexttext, image, video, audio, file
Outputtexttext
Released—2025-11-18