Google Grounding API
GoogleGoogle's managed grounding-with-search capability inside Vertex AI, letting an agent ground its responses in real-time Google Search results or in enterprise data through Vertex AI Search. It is tightly integrated with the Gemini models and forms the search-augmented generation path for the wider Vertex AI platform.
A feature inside the Gemini Enterprise Agent Platform rather than a separately metered product, so no grounding-specific usage figure exists and adoption abstains rather than borrowing the platform's reach. Verified 2026-08-13 via the Google Cloud grounding overview.
Openness
1 high confidence- license
- proprietary(GCP-managed API)
- source
- closed
- managed
- Vertex-AI/Gemini-Agent-Platform
Fully proprietary Google Cloud managed grounding service; no open source component or self-host. Tied to Gemini + Google Search index.
- https://docs.cloud.google.com/vertex-ai/generative-ai/docs/grounding/overview recorded 2026-08-13
"You can ground supported-model output in Gemini Enterprise Agent Platform in the following ways", with Grounding with Google Search - "Connect your model to world knowledge and a wide possible range of topics using results from Google's search engine" - as one row beside Google Maps, Agent Search, your own search API, RAG, Elasticsearch, Parallel and Exa. No source release, self-host or on-premise option.
Adoption
not assessedBundled feature of Vertex AI / Gemini Enterprise Agent Platform with no standalone usage figure disclosed. The overview page carries a capability table and a benefits list, but no request count, customer count, developer count or named-customer list for grounding specifically, and there is no package or registry artifact to band. The broad Vertex AI / Gemini surface is large, but no honest grounding-API-specific adoption signal is verifiable and the parent platform's reach is not a substitute, so the axis abstains.
- https://docs.cloud.google.com/vertex-ai/generative-ai/docs/grounding/overview recorded 2026-08-13
Grounding documented as a platform capability with a benefits list (reduces hallucinations, anchors responses to your data sources, provides grounding support links for auditability) and a table of grounding types. No usage, request or customer figure for the grounding API itself.
Capability
4 medium confidenceGrounds model output in the full Google Search index and returns citation and grounding-support metadata alongside it, which gives best-in-class web freshness and coverage for agent grounding. Rated 4 on coverage, freshness and structured output, and capped below 5 because per-feature confirmation came only from the product overview page rather than from deeper feature documentation.
- https://docs.cloud.google.com/vertex-ai/generative-ai/docs/grounding/overview recorded 2026-08-13
"Connect your model to world knowledge and a wide possible range of topics using results from Google's search engine"; "Provides auditability by providing grounding support, which are links to sources"; "Reduces model hallucinations". Overview level only - no per-feature reference on this page.
Verified 2026-08-13