Enable citations by default for certain users. (#7438)

packages/cli/src/ui/hooks/useGeminiStream.ts

@@ -31,6 +31,8 @@ import {
   ConversationFinishedEvent,
   ApprovalMode,
   parseAndFormatApiError,
+  getCodeAssistServer,
+  UserTierId,
 } from '@google/gemini-cli-core';
 import { type Part, type PartListUnion, FinishReason } from '@google/genai';
 import type {
@@ -68,6 +70,15 @@ enum StreamProcessingStatus {
   Error,
 }
 
+function showCitations(settings: LoadedSettings, config: Config): boolean {
+  const enabled = settings?.merged?.ui?.showCitations;
+  if (enabled !== undefined) {
+    return enabled;
+  }
+  const server = getCodeAssistServer(config);
+  return (server && server.userTier !== UserTierId.FREE) ?? false;
+}
+
 /**
  * Manages the Gemini stream, including user input, command processing,
  * API interaction, and tool call lifecycle.
@@ -490,16 +501,17 @@ export const useGeminiStream = (
 
   const handleCitationEvent = useCallback(
     (text: string, userMessageTimestamp: number) => {
-      if (!settings?.merged?.ui?.showCitations) {
+      if (!showCitations(settings, config)) {
         return;
       }
+
       if (pendingHistoryItemRef.current) {
         addItem(pendingHistoryItemRef.current, userMessageTimestamp);
         setPendingHistoryItem(null);
       }
       addItem({ type: MessageType.INFO, text }, userMessageTimestamp);
     },
-    [addItem, pendingHistoryItemRef, setPendingHistoryItem, settings],
+    [addItem, pendingHistoryItemRef, setPendingHistoryItem, settings, config],
   );
 
   const handleFinishedEvent = useCallback(