Claude Opus 4.1 vs Gemini 3 Flash Preview

Anthropic Claude Claude Opus 4.1Google Gemini 3 Flash Preview
VendorAnthropic ClaudeGoogle
Context window200,0001,048,576
Max output32,00065,536
ReasoningYesYes
Tool callingYesYes
File inputYesYes
Inputtext, imagetext, image, video, audio, file
Outputtexttext
Released2025-08-052025-12-17