diff --git a/web/packages/studio/src/components/FilterFields/BaseModelSearchFilterField.tsx b/web/packages/studio/src/components/FilterFields/BaseModelSearchFilterField.tsx
index 6d75dc5e9d..7c406e8a56 100644
--- a/web/packages/studio/src/components/FilterFields/BaseModelSearchFilterField.tsx
+++ b/web/packages/studio/src/components/FilterFields/BaseModelSearchFilterField.tsx
@@ -39,7 +39,7 @@ const BaseModelSearchFilterFieldSingle: FC<
 
   const { models, fetchNextPage, hasNextPage, isFetchingNextPage, isLoading } = useBaseModels({
     workspace,
-    filter: searchInput.trim() ? { name: searchInput.trim() } : undefined,
+    filter: searchInput.trim() ? { name: { $like: searchInput.trim() } } : undefined,
     sort: ModelEntitySortField.name,
   });
 
@@ -52,7 +52,11 @@ const BaseModelSearchFilterFieldSingle: FC<
   }, [selectedBaseModel, form]);
 
   const options = useMemo(
-    () => models.map((model) => ({ value: model.name ?? '', label: model.name ?? '' })),
+    () =>
+      models.map((model) => ({
+        value: `${model.workspace}/${model.name ?? ''}`,
+        label: model.name ?? '',
+      })),
     [models]
   );
 
diff --git a/web/packages/studio/src/components/dataViews/VirtualModelsDataView/index.tsx b/web/packages/studio/src/components/dataViews/VirtualModelsDataView/index.tsx
index 47627fb016..ae6d1c1941 100644
--- a/web/packages/studio/src/components/dataViews/VirtualModelsDataView/index.tsx
+++ b/web/packages/studio/src/components/dataViews/VirtualModelsDataView/index.tsx
@@ -77,13 +77,21 @@ export const VirtualModelsDataView: FC<VirtualModelsDataViewProps> = ({
     const columnFilters = new Map(dataViewState.debouncedColumnFilters.map((f) => [f.id, f.value]));
     const name = dataViewState.debouncedSearchBar || undefined;
     const defaultModelEntity = columnFilters.get('default_model_entity') as string | undefined;
+    // API requires workspace-qualified form ("default/model-name"); dropdown yields bare names.
+    const qualifiedDefaultModelEntity = defaultModelEntity
+      ? defaultModelEntity.includes('/')
+        ? defaultModelEntity
+        : `${workspace}/${defaultModelEntity}`
+      : undefined;
     const createdAt = columnFilters.get('created_at') as DatetimeFilter | undefined;
     return withOperators<VirtualModelFilter>({
       ...(name ? { name: { $like: name } } : {}),
-      ...(defaultModelEntity ? { default_model_entity: { $eq: defaultModelEntity } } : {}),
+      ...(qualifiedDefaultModelEntity
+        ? { default_model_entity: { $eq: qualifiedDefaultModelEntity } }
+        : {}),
       ...(createdAt ? { created_at: createdAt } : {}),
     });
-  }, [dataViewState.debouncedSearchBar, dataViewState.debouncedColumnFilters]);
+  }, [dataViewState.debouncedSearchBar, dataViewState.debouncedColumnFilters, workspace]);
 
   const { data, isFetching, error } = useListVirtualModels(
     workspace,