To ground your models to your source data, you need to have prepared and saved your data to Vertex AI Search. To do this, you need to create a data store in Vertex AI Agent Builder.

If you are starting from scratch, you need to prepare your data for ingestion into Vertex AI Agent Builder. See Prepare data for ingesting to get started. Depending on the size of your data, ingestion can take several minutes to several hours. Only unstructured data stores are supported for grounding.

After you've prepared your data for ingestion, you can Create a search data store. After you've successfully created a data store, Create a search app to link to it and Turn Enterprise edition on.

Here is an example on how to ground the gemini 1.5 Flash model. Use the following instructions to ground a model with your own data. But before proceeding, There are prerequisites needed before you can ground model output to your data.