Do not fallback for manual models (#84)

* Update display name for alias model

* fix tests

packages/cli/src/test-utils/render.tsx

@@ -91,6 +91,7 @@ const mockConfig = {
   isTrustedFolder: () => true,
   getIdeMode: () => false,
   getEnableInteractiveShell: () => true,
+  getPreviewFeatures: () => false,
 };
 
 const configProxy = new Proxy(mockConfig, {

packages/cli/src/ui/components/Footer.tsx

@@ -149,7 +149,7 @@ export const Footer: React.FC = () => {
         <Box alignItems="center" justifyContent="flex-end">
           <Box alignItems="center">
             <Text color={theme.text.accent}>
-              {getDisplayString(model)}
+              {getDisplayString(model, config.getPreviewFeatures())}
               {!hideContextPercentage && (
                 <>
                   {' '}

packages/cli/src/ui/components/ProQuotaDialog.test.tsx

@@ -33,7 +33,7 @@ describe('ProQuotaDialog', () => {
       const { unmount } = render(
         <ProQuotaDialog
           failedModel={DEFAULT_GEMINI_FLASH_MODEL}
-          fallbackModel="gemini-2.5-pro"
+          fallbackModel={DEFAULT_GEMINI_FLASH_MODEL}
           message="flash error"
           isTerminalQuotaError={true} // should not matter
           onChoice={mockOnChoice}
@@ -97,6 +97,38 @@ describe('ProQuotaDialog', () => {
         unmount();
       });
 
+      it('should render "Keep trying" and "Stop" options when failed model and fallback model are the same', () => {
+        const { unmount } = render(
+          <ProQuotaDialog
+            failedModel={PREVIEW_GEMINI_MODEL}
+            fallbackModel={PREVIEW_GEMINI_MODEL}
+            message="flash error"
+            isTerminalQuotaError={true}
+            onChoice={mockOnChoice}
+            userTier={UserTierId.FREE}
+          />,
+        );
+
+        expect(RadioButtonSelect).toHaveBeenCalledWith(
+          expect.objectContaining({
+            items: [
+              {
+                label: 'Keep trying',
+                value: 'retry_once',
+                key: 'retry_once',
+              },
+              {
+                label: 'Stop',
+                value: 'retry_later',
+                key: 'retry_later',
+              },
+            ],
+          }),
+          undefined,
+        );
+        unmount();
+      });
+
       it('should render switch, upgrade, and stop options for free tier', () => {
         const { unmount } = render(
           <ProQuotaDialog

packages/cli/src/ui/components/ProQuotaDialog.tsx

@@ -9,14 +9,7 @@ import { Box, Text } from 'ink';
 import { RadioButtonSelect } from './shared/RadioButtonSelect.js';
 import { theme } from '../semantic-colors.js';
 
-import {
-  DEFAULT_GEMINI_FLASH_LITE_MODEL,
-  DEFAULT_GEMINI_FLASH_MODEL,
-  DEFAULT_GEMINI_MODEL,
-  FLASH_PREVIEW_MODEL_REVERT_BEFORE_MERGE,
-  PREVIEW_GEMINI_FLASH_MODEL,
-  UserTierId,
-} from '@google/gemini-cli-core';
+import { DEFAULT_GEMINI_MODEL, UserTierId } from '@google/gemini-cli-core';
 
 interface ProQuotaDialogProps {
   failedModel: string;
@@ -43,13 +36,8 @@ export function ProQuotaDialog({
   const isPaidTier =
     userTier === UserTierId.LEGACY || userTier === UserTierId.STANDARD;
   let items;
-  // flash and flash lite don't have options to switch or upgrade.
-  if (
-    failedModel === DEFAULT_GEMINI_FLASH_MODEL ||
-    failedModel === DEFAULT_GEMINI_FLASH_LITE_MODEL ||
-    failedModel === PREVIEW_GEMINI_FLASH_MODEL ||
-    failedModel === FLASH_PREVIEW_MODEL_REVERT_BEFORE_MERGE
-  ) {
+  // Do not provide a fallback option if failed model and fallbackmodel are same.
+  if (failedModel === fallbackModel) {
     items = [
       {
         label: 'Keep trying',