Why it matters

Vertex AI is GCP enterprise LLM. Understanding shapes GCP integration.

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The architecture

Vertex starter.

GCP auth: service account / ADC.

Region + project config.

Spring AI Vertexspring.ai.vertex.*propertiesGCP authSA or ADCGemini modelschat + embedGCP IAM + private endpoints for enterprise; multimodal supported
Vertex.
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How it works end to end

Project + region config.

Multimodal Parts.

Long context 1M+ tokens.