Claude Opus 4.1 vs Gemini 3.5 Flash

Anthropic Claude Claude Opus 4.1Google Gemini 3.5 Flash
VendorAnthropic ClaudeGoogle
Context window200,0001,048,576
Max output32,00065,536
ReasoningYesYes
Tool callingYesYes
File inputYesYes
Inputtext, imagetext, image, video, audio, file
Outputtexttext
Released2025-08-052026-05-19