Context management

Google Agent Search (formerly Vertex AI Search)

Google-quality enterprise search and grounding service with out-of-the-box and DIY grounding APIs

Commercial

What it is

Our note

Rebranded from Vertex AI Search, Agent Search is Google's answer for grounding agents on structured and unstructured enterprise data, offering both a turnkey system and DIY grounding APIs. It also supplies the reranking API that RAG Engine calls, so the two entries are two surfaces of one retrieval stack.

At a glance

Vendor
Google Cloud
Business model
Commercial
Self-hosting
No, hosted only
Access
Search applications, grounding APIs, vector search; Cloud Console and APIs

Facts verified nov 10, 2026; added nov 10, 2026. Vendor facts come from the vendor’s own pages; benchmark claims are self-reported unless we say otherwise.

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