Yes, Gemini on Vertex AI provides built-in RAG and file search capability through the Vertex AI RAG Engine and File Search Tool.
Built-in citation support traces answers back to source documents.
The Vertex AI RAG Engine reached GA in early 2025, using models like text-embedding-005 or gemini-embedding-001.
The File Search Tool was launched in late 2025 as a fully managed RAG system within the Gemini API.
Enterprise security includes CMEK and VPC-SC support.
In conclusion, Google provides a powerful built-in RAG and file search solution for Gemini on Vertex AI.
Last verified: 2/6/2026
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