diff --git a/src/web/pages/Accounts.tsx b/src/web/pages/Accounts.tsx
index a572415..a8c38cc 100644
--- a/src/web/pages/Accounts.tsx
+++ b/src/web/pages/Accounts.tsx
@@ -129,6 +129,7 @@ export default function Accounts() {
   const rowRefs = useRef<Map<number, HTMLTableRowElement>>(new Map());
   const highlightTimerRef = useRef<ReturnType<typeof setTimeout> | null>(null);
   const lastRebindTargetRef = useRef<any | null>(null);
+  const modelModalRequestSeqRef = useRef(0);
   const toast = useToast();
   if (rebindTarget) lastRebindTargetRef.current = rebindTarget;
   const activeRebindTarget = rebindTarget || lastRebindTargetRef.current;
@@ -405,26 +406,67 @@ export default function Accounts() {
     }
   };
 
-  const openModelModal = async (account: any) => {
-    setModelModal(s => ({ ...s, open: true, account, loading: true, models: [], pendingDisabled: new Set(), siteName: '' }));
+  const applyLoadedModelModal = (account: any, result: any) => {
+    const models = Array.isArray(result?.models) ? result.models : [];
+    const disabledSet = new Set<string>(models.filter((m: any) => m.disabled).map((m: any) => m.name as string));
+    setModelModal(s => ({
+      ...s,
+      loading: false,
+      models,
+      pendingDisabled: disabledSet,
+      siteName: result?.siteName || account.site?.name || s.siteName,
+    }));
+  };
+
+  const loadModelModalModels = async (
+    account: any,
+    options: {
+      refreshUpstream?: boolean;
+      resetBeforeLoad?: boolean;
+      closeOnError?: boolean;
+      successMessage?: string | null;
+      errorMessage?: string;
+    } = {},
+  ) => {
+    const requestId = ++modelModalRequestSeqRef.current;
+    setModelModal(s => ({
+      ...s,
+      open: true,
+      account,
+      loading: true,
+      ...(options.resetBeforeLoad ? { models: [], pendingDisabled: new Set<string>(), siteName: '' } : {}),
+    }));
     try {
+      if (options.refreshUpstream) {
+        await api.checkModels(account.id);
+      }
       const result = await api.getAccountModels(account.id);
-      const models = Array.isArray(result?.models) ? result.models : [];
-      const disabledSet = new Set<string>(models.filter((m: any) => m.disabled).map((m: any) => m.name as string));
-      setModelModal(s => ({
-        ...s,
-        loading: false,
-        models,
-        pendingDisabled: disabledSet,
-        siteName: result?.siteName || account.site?.name || '',
-      }));
+      if (modelModalRequestSeqRef.current !== requestId) return;
+      applyLoadedModelModal(account, result);
+      if (options.successMessage) {
+        toast.success(options.successMessage);
+      }
     } catch (e: any) {
-      toast.error(e.message || '加载模型列表失败');
-      setModelModal(s => ({ ...s, open: false, loading: false }));
+      if (modelModalRequestSeqRef.current !== requestId) return;
+      toast.error(e.message || options.errorMessage || '加载模型列表失败');
+      setModelModal(s => (
+        options.closeOnError
+          ? { ...s, open: false, account: null, loading: false }
+          : { ...s, loading: false }
+      ));
     }
   };
 
+  const openModelModal = async (account: any) => {
+    await loadModelModalModels(account, {
+      resetBeforeLoad: true,
+      closeOnError: true,
+      errorMessage: '加载模型列表失败',
+    });
+  };
+
   const closeModelModal = () => {
+    modelModalRequestSeqRef.current += 1;
     setModelModal(s => ({ ...s, open: false, account: null }));
   };
 
@@ -443,11 +485,12 @@ export default function Accounts() {
     setModelModal(s => ({ ...s, saving: true }));
     try {
       await api.updateSiteDisabledModels(siteId, Array.from(modelModal.pendingDisabled));
-      // 禁用配置变更后自动重建路由，使变更立即生效（不刷新模型，在后台异步执行）
       try {
         await api.rebuildRoutes(false, false);
-      } catch { /* 路由重建失败不阻塞保存流程 */ }
-      toast.success('模型禁用设置已保存，路由已重建');
+        toast.success('模型禁用设置已保存，路由已重建');
+      } catch {
+        toast.error('模型禁用设置已保存，但路由重建失败，请手动刷新路由');
+      }
       closeModelModal();
     } catch (e: any) {
       toast.error(e.message || '保存失败');
@@ -1875,18 +1918,11 @@ export default function Accounts() {
             <button
               onClick={async () => {
                 if (!modelModal.account) return;
-                setModelModal(s => ({ ...s, loading: true }));
-                try {
-                  await api.checkModels(modelModal.account.id);
-                  const result = await api.getAccountModels(modelModal.account.id);
-                  const models = Array.isArray(result?.models) ? result.models : [];
-                  const disabledSet = new Set<string>(models.filter((m: any) => m.disabled).map((m: any) => m.name as string));
-                  setModelModal(s => ({ ...s, loading: false, models, pendingDisabled: disabledSet, siteName: result?.siteName || s.siteName }));
-                  toast.success('模型列表已刷新');
-                } catch (e: any) {
-                  toast.error(e.message || '刷新失败');
-                  setModelModal(s => ({ ...s, loading: false }));
-                }
+                await loadModelModalModels(modelModal.account, {
+                  refreshUpstream: true,
+                  successMessage: '模型列表已刷新',
+                  errorMessage: '刷新失败',
+                });
               }}
               style={{ marginTop: 16 }}
               className="btn btn-soft-primary"
@@ -1930,18 +1966,11 @@ export default function Accounts() {
                 <button
                   onClick={async () => {
                     if (!modelModal.account) return;
-                    setModelModal(s => ({ ...s, loading: true }));
-                    try {
-                      await api.checkModels(modelModal.account.id);
-                      const result = await api.getAccountModels(modelModal.account.id);
-                      const models = Array.isArray(result?.models) ? result.models : [];
-                      const disabledSet = new Set<string>(models.filter((m: any) => m.disabled).map((m: any) => m.name as string));
-                      setModelModal(s => ({ ...s, loading: false, models, pendingDisabled: disabledSet, siteName: result?.siteName || s.siteName }));
-                      toast.success('模型列表已刷新');
-                    } catch (e: any) {
-                      toast.error(e.message || '刷新失败');
-                      setModelModal(s => ({ ...s, loading: false }));
-                    }
+                    await loadModelModalModels(modelModal.account, {
+                      refreshUpstream: true,
+                      successMessage: '模型列表已刷新',
+                      errorMessage: '刷新失败',
+                    });
                   }}
                   disabled={modelModal.saving}
                   className="btn btn-ghost"
diff --git a/src/web/pages/Sites.tsx b/src/web/pages/Sites.tsx
index c161a48..116844a 100644
--- a/src/web/pages/Sites.tsx
+++ b/src/web/pages/Sites.tsx
@@ -232,7 +232,12 @@ export default function Sites() {
     setDisabledModelsSaving(true);
     try {
       await api.updateSiteDisabledModels(editor.editingSiteId, disabledModels);
-      toast.success('禁用模型列表已保存');
+      try {
+        await api.rebuildRoutes(false, false);
+        toast.success('禁用模型列表已保存，路由已重建');
+      } catch {
+        toast.error('禁用模型列表已保存，但路由重建失败，请手动刷新路由');
+      }
     } catch (e: any) {
       toast.error(e.message || '保存禁用模型失败');
     } finally {
diff --git a/src/web/pages/accounts.edit-panel.test.tsx b/src/web/pages/accounts.edit-panel.test.tsx
index 07a5ecc..400b246 100644
--- a/src/web/pages/accounts.edit-panel.test.tsx
+++ b/src/web/pages/accounts.edit-panel.test.tsx
@@ -10,6 +10,8 @@ const { apiMock, toastMock } = vi.hoisted(() => ({
     getAccounts: vi.fn(),
     getSites: vi.fn(),
     updateAccount: vi.fn(),
+    updateSiteDisabledModels: vi.fn(),
+    rebuildRoutes: vi.fn(),
     refreshAccountHealth: vi.fn(),
     checkModels: vi.fn(),
     getAccountModels: vi.fn(),
@@ -45,6 +47,16 @@ async function flushMicrotasks() {
   });
 }
 
+function deferred<T>() {
+  let resolve!: (value: T) => void;
+  let reject!: (reason?: unknown) => void;
+  const promise = new Promise<T>((res, rej) => {
+    resolve = res;
+    reject = rej;
+  });
+  return { promise, resolve, reject };
+}
+
 describe('Accounts edit panel', () => {
   beforeEach(() => {
     vi.clearAllMocks();
@@ -62,6 +74,8 @@ describe('Accounts edit panel', () => {
       },
     ]);
     apiMock.updateAccount.mockResolvedValue({ success: true });
+    apiMock.updateSiteDisabledModels.mockResolvedValue({ success: true });
+    apiMock.rebuildRoutes.mockResolvedValue({ success: true });
     apiMock.refreshAccountHealth.mockResolvedValue({ success: true });
     apiMock.getAccountModels.mockResolvedValue({
       siteId: 1,
@@ -159,6 +173,147 @@ describe('Accounts edit panel', () => {
       root?.unmount();
     }
   });
+
+  it('ignores stale model modal loads after switching accounts', async () => {
+    const firstLoad = deferred<any>();
+    const secondLoad = deferred<any>();
+    apiMock.getAccounts.mockResolvedValue([
+      {
+        id: 1,
+        siteId: 1,
+        username: 'alpha',
+        accessToken: 'session-alpha',
+        status: 'active',
+        site: { id: 1, name: 'Site A', status: 'active', platform: 'new-api' },
+      },
+      {
+        id: 2,
+        siteId: 2,
+        username: 'beta',
+        accessToken: 'session-beta',
+        status: 'active',
+        site: { id: 2, name: 'Site B', status: 'active', platform: 'new-api' },
+      },
+    ]);
+    apiMock.getSites.mockResolvedValue([
+      { id: 1, name: 'Site A', platform: 'new-api', status: 'active' },
+      { id: 2, name: 'Site B', platform: 'new-api', status: 'active' },
+    ]);
+    apiMock.getAccountModels.mockImplementation((accountId: number) => {
+      if (accountId === 1) return firstLoad.promise;
+      if (accountId === 2) return secondLoad.promise;
+      return Promise.resolve({ siteId: accountId, siteName: 'Unknown', models: [] });
+    });
+
+    let root: ReturnType<typeof create> | null = null;
+    try {
+      await act(async () => {
+        root = create(
+          <MemoryRouter initialEntries={['/accounts']}>
+            <ToastProvider>
+              <Accounts />
+            </ToastProvider>
+          </MemoryRouter>,
+        );
+      });
+      await flushMicrotasks();
+
+      const modelButtons = root.root.findAll((node) => (
+        node.type === 'button'
+        && typeof node.props.onClick === 'function'
+        && typeof node.props.className === 'string'
+        && node.props.className.includes('btn-link-info')
+        && collectText(node).trim() === '模型'
+      ));
+
+      await act(async () => {
+        void modelButtons[0]!.props.onClick();
+      });
+      await flushMicrotasks();
+
+      await act(async () => {
+        void modelButtons[1]!.props.onClick();
+      });
+      await flushMicrotasks();
+
+      secondLoad.resolve({
+        siteId: 2,
+        siteName: 'Site B',
+        models: [{ name: 'model-b', latencyMs: 66, disabled: false }],
+      });
+      await flushMicrotasks();
+
+      firstLoad.resolve({
+        siteId: 1,
+        siteName: 'Site A',
+        models: [{ name: 'model-a', latencyMs: 33, disabled: false }],
+      });
+      await flushMicrotasks();
+
+      const rendered = JSON.stringify(root.toJSON());
+      expect(rendered).toContain('模型管理 · Site B');
+      expect(rendered).toContain('model-b');
+      expect(rendered).not.toContain('model-a');
+    } finally {
+      root?.unmount();
+    }
+  });
+
+  it('reports route rebuild failure without claiming success', async () => {
+    apiMock.getAccountModels.mockResolvedValue({
+      siteId: 1,
+      siteName: 'Site A',
+      models: [{ name: 'gpt-4', latencyMs: 120, disabled: false }],
+      totalCount: 1,
+      disabledCount: 0,
+    });
+    apiMock.rebuildRoutes.mockRejectedValue(new Error('rebuild failed'));
+
+    let root: ReturnType<typeof create> | null = null;
+    try {
+      await act(async () => {
+        root = create(
+          <MemoryRouter initialEntries={['/accounts']}>
+            <ToastProvider>
+              <Accounts />
+            </ToastProvider>
+          </MemoryRouter>,
+        );
+      });
+      await flushMicrotasks();
+
+      const modelButton = root.root.find((node) => (
+        node.type === 'button'
+        && typeof node.props.onClick === 'function'
+        && typeof node.props.className === 'string'
+        && node.props.className.includes('btn-link-info')
+        && collectText(node).trim() === '模型'
+      ));
+
+      await act(async () => {
+        await modelButton.props.onClick();
+      });
+      await flushMicrotasks();
+
+      const saveButtons = root.root.findAll((node) => (
+        node.type === 'button'
+        && typeof node.props.onClick === 'function'
+        && collectText(node).trim() === '保存'
+      ));
+
+      await act(async () => {
+        await saveButtons[saveButtons.length - 1]!.props.onClick();
+      });
+      await flushMicrotasks();
+
+      expect(apiMock.updateSiteDisabledModels).toHaveBeenCalledWith(1, []);
+      expect(apiMock.rebuildRoutes).toHaveBeenCalledWith(false, false);
+      expect(toastMock.error).toHaveBeenCalledWith('模型禁用设置已保存，但路由重建失败，请手动刷新路由');
+      expect(toastMock.success).not.toHaveBeenCalledWith('模型禁用设置已保存，路由已重建');
+    } finally {
+      root?.unmount();
+    }
+  });
 });
 
 
diff --git a/src/web/pages/sites.disabled-models-save.test.tsx b/src/web/pages/sites.disabled-models-save.test.tsx
new file mode 100644
index 0000000..4cb7757
--- /dev/null
+++ b/src/web/pages/sites.disabled-models-save.test.tsx
@@ -0,0 +1,113 @@
+import type { ReactNode } from 'react';
+import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
+import { act, create, type ReactTestInstance } from 'react-test-renderer';
+import { MemoryRouter } from 'react-router-dom';
+import { ToastProvider } from '../components/Toast.js';
+import Sites from './Sites.js';
+
+const { apiMock, toastMock } = vi.hoisted(() => ({
+  apiMock: {
+    getSites: vi.fn(),
+    getSiteDisabledModels: vi.fn(),
+    updateSiteDisabledModels: vi.fn(),
+    rebuildRoutes: vi.fn(),
+  },
+  toastMock: {
+    success: vi.fn(),
+    error: vi.fn(),
+    info: vi.fn(),
+    toast: vi.fn(),
+  },
+}));
+
+vi.mock('../api.js', () => ({
+  api: apiMock,
+}));
+
+vi.mock('../components/Toast.js', () => ({
+  ToastProvider: ({ children }: { children: ReactNode }) => children,
+  useToast: () => toastMock,
+}));
+
+function collectText(node: ReactTestInstance): string {
+  const children = node.children || [];
+  return children.map((child) => {
+    if (typeof child === 'string') return child;
+    return collectText(child);
+  }).join('');
+}
+
+async function flushMicrotasks() {
+  await act(async () => {
+    await Promise.resolve();
+    await Promise.resolve();
+  });
+}
+
+describe('Sites disabled models save', () => {
+  beforeEach(() => {
+    vi.clearAllMocks();
+    apiMock.getSites.mockResolvedValue([
+      {
+        id: 1,
+        name: 'Demo Site',
+        url: 'https://example.com',
+        platform: 'new-api',
+        status: 'active',
+      },
+    ]);
+    apiMock.getSiteDisabledModels.mockResolvedValue({ models: [] });
+    apiMock.updateSiteDisabledModels.mockResolvedValue({ success: true });
+  });
+
+  afterEach(() => {
+    vi.clearAllMocks();
+  });
+
+  it('reports route rebuild failure after saving disabled models from sites editor', async () => {
+    apiMock.rebuildRoutes.mockRejectedValue(new Error('rebuild failed'));
+
+    let root: ReturnType<typeof create> | null = null;
+    try {
+      await act(async () => {
+        root = create(
+          <MemoryRouter initialEntries={['/sites']}>
+            <ToastProvider>
+              <Sites />
+            </ToastProvider>
+          </MemoryRouter>,
+        );
+      });
+      await flushMicrotasks();
+
+      const editButton = root.root.find((node) => (
+        node.type === 'button'
+        && typeof node.props.onClick === 'function'
+        && collectText(node).trim() === '编辑'
+      ));
+
+      await act(async () => {
+        editButton.props.onClick();
+      });
+      await flushMicrotasks();
+
+      const saveButton = root.root.find((node) => (
+        node.type === 'button'
+        && typeof node.props.onClick === 'function'
+        && collectText(node).includes('保存禁用列表')
+      ));
+
+      await act(async () => {
+        await saveButton.props.onClick();
+      });
+      await flushMicrotasks();
+
+      expect(apiMock.updateSiteDisabledModels).toHaveBeenCalledWith(1, []);
+      expect(apiMock.rebuildRoutes).toHaveBeenCalledWith(false, false);
+      expect(toastMock.error).toHaveBeenCalledWith('禁用模型列表已保存，但路由重建失败，请手动刷新路由');
+      expect(toastMock.success).not.toHaveBeenCalledWith('禁用模型列表已保存，路由已重建');
+    } finally {
+      root?.unmount();
+    }
+  });
+});