LLM Gatewaygemini-flashGemini 3.6 Flash (Google Vertex AI)google-vertex/gemini-3.6-flashLLM GatewayReleased Jul 21, 20261,048,576 token context windowIn $0.75 · Out $3.75ReasoningTool callingStructured outputAttachmentsTemp controlsInputtextimagevideoaudiopdfOutputtext