diff --git a/x-pack/plugins/observability_solution/observability_ai_assistant/common/ui_settings/settings_keys.ts b/x-pack/plugins/observability_solution/observability_ai_assistant/common/ui_settings/settings_keys.ts
index 1f6d4d173cfa8..4685befa9df24 100644
--- a/x-pack/plugins/observability_solution/observability_ai_assistant/common/ui_settings/settings_keys.ts
+++ b/x-pack/plugins/observability_solution/observability_ai_assistant/common/ui_settings/settings_keys.ts
@@ -12,3 +12,4 @@ export const aiAssistantSimulatedFunctionCalling =
   'observability:aiAssistantSimulatedFunctionCalling';
 export const aiAssistantSearchConnectorIndexPattern =
   'observability:aiAssistantSearchConnectorIndexPattern';
+export const aiAssistantPreferredAIAssistantType = 'aiAssistant:preferredAIAssistantType';
diff --git a/x-pack/plugins/observability_solution/observability_ai_assistant/public/index.ts b/x-pack/plugins/observability_solution/observability_ai_assistant/public/index.ts
index 7e7ed20de18e3..81cee3036e9c2 100644
--- a/x-pack/plugins/observability_solution/observability_ai_assistant/public/index.ts
+++ b/x-pack/plugins/observability_solution/observability_ai_assistant/public/index.ts
@@ -100,6 +100,7 @@ export {
   aiAssistantLogsIndexPattern,
   aiAssistantSimulatedFunctionCalling,
   aiAssistantSearchConnectorIndexPattern,
+  aiAssistantPreferredAIAssistantType,
 } from '../common/ui_settings/settings_keys';
 
 export const plugin: PluginInitializer<
diff --git a/x-pack/plugins/observability_solution/observability_ai_assistant_management/public/routes/components/settings_tab/ui_settings.tsx b/x-pack/plugins/observability_solution/observability_ai_assistant_management/public/routes/components/settings_tab/ui_settings.tsx
index 5b1f1c36fd3dd..4b30a568bd5e1 100644
--- a/x-pack/plugins/observability_solution/observability_ai_assistant_management/public/routes/components/settings_tab/ui_settings.tsx
+++ b/x-pack/plugins/observability_solution/observability_ai_assistant_management/public/routes/components/settings_tab/ui_settings.tsx
@@ -12,6 +12,7 @@ import {
   aiAssistantResponseLanguage,
   aiAssistantSimulatedFunctionCalling,
   aiAssistantSearchConnectorIndexPattern,
+  aiAssistantPreferredAIAssistantType,
 } from '@kbn/observability-ai-assistant-plugin/public';
 import { FieldRow, FieldRowProvider } from '@kbn/management-settings-components-field-row';
 import { EuiSpacer } from '@elastic/eui';
@@ -24,6 +25,7 @@ const settingsKeys = [
   aiAssistantResponseLanguage,
   aiAssistantSimulatedFunctionCalling,
   aiAssistantSearchConnectorIndexPattern,
+  aiAssistantPreferredAIAssistantType,
 ];
 
 export function UISettings() {