diff --git a/src/langbot/pkg/api/http/controller/groups/user.py b/src/langbot/pkg/api/http/controller/groups/user.py
index d6f2f4b9c..5b579cd7a 100644
--- a/src/langbot/pkg/api/http/controller/groups/user.py
+++ b/src/langbot/pkg/api/http/controller/groups/user.py
@@ -75,6 +75,8 @@ class UserRouterGroup(group.RouterGroup):
 
         @self.route('/auth', methods=['POST'], auth_type=group.AuthType.NONE)
         async def _() -> str:
+            if getattr(getattr(self.ap, 'deployment', None), 'mode', 'oss') == 'cloud':
+                return self.http_status(403, 'password_login_disabled', 'Password login is disabled on LangBot Cloud')
             json_data = await quart.request.json
 
             try:
@@ -293,7 +295,7 @@ class UserRouterGroup(group.RouterGroup):
                     # Login is selected per account in a multi-user instance. A public
                     # bootstrap endpoint must never project one user's authentication
                     # methods onto every other user or disclose that user's state.
-                    'password_login_enabled': True,
+                    'password_login_enabled': getattr(getattr(self.ap, 'deployment', None), 'mode', 'oss') != 'cloud',
                     'space_login_enabled': True,
                 }
             )
diff --git a/src/langbot/pkg/api/http/controller/groups/workspaces.py b/src/langbot/pkg/api/http/controller/groups/workspaces.py
index 6aecc9d04..6390777c6 100644
--- a/src/langbot/pkg/api/http/controller/groups/workspaces.py
+++ b/src/langbot/pkg/api/http/controller/groups/workspaces.py
@@ -329,6 +329,12 @@ class InvitationsRouterGroup(group.RouterGroup):
                 return self.success(data={'token': token, 'workspace_uuid': membership.workspace_uuid})
 
             registration = data.get('registration')
+            if getattr(getattr(self.ap, 'deployment', None), 'mode', 'oss') == 'cloud':
+                return self.http_status(
+                    401,
+                    'account_exists_login_required',
+                    'Login with your LangBot Account to accept this invitation',
+                )
             if not isinstance(registration, dict):
                 return self.http_status(
                     401,
diff --git a/src/langbot/pkg/core/app.py b/src/langbot/pkg/core/app.py
index 223bc1e67..333c657cb 100644
--- a/src/langbot/pkg/core/app.py
+++ b/src/langbot/pkg/core/app.py
@@ -212,6 +212,12 @@ class Application:
                     name='cloud-manifest-refresh',
                     scopes=[core_entities.LifecycleControlScope.APPLICATION],
                 )
+            if self.workspace_collaboration_service is not None:
+                self.task_mgr.create_task(
+                    self.workspace_collaboration_service.run_expired_invitation_cleanup(),
+                    name='workspace-invitation-cleanup',
+                    scopes=[core_entities.LifecycleControlScope.APPLICATION],
+                )
 
             await self.plugin_connector.initialize_plugins()
 
diff --git a/src/langbot/pkg/workspace/collaboration.py b/src/langbot/pkg/workspace/collaboration.py
index b313d4222..cccfc26e0 100644
--- a/src/langbot/pkg/workspace/collaboration.py
+++ b/src/langbot/pkg/workspace/collaboration.py
@@ -552,6 +552,47 @@ class WorkspaceCollaborationService:
 
         return await self._run(operation, session=session)
 
+    async def cleanup_expired_invitations(
+        self,
+        *,
+        retention: datetime.timedelta = datetime.timedelta(0),
+    ) -> int:
+        """Delete expired invitation records without crossing Cloud tenant scopes."""
+        cutoff = self._utcnow() - retention
+
+        async def cleanup_session(active_session: AsyncSession, workspace_uuid: str | None = None) -> int:
+            statement = sqlalchemy.delete(WorkspaceInvitation).where(
+                WorkspaceInvitation.status.in_((InvitationStatus.PENDING.value, InvitationStatus.EXPIRED.value)),
+                WorkspaceInvitation.expires_at <= cutoff,
+            )
+            if workspace_uuid is not None:
+                statement = statement.where(WorkspaceInvitation.workspace_uuid == workspace_uuid)
+            result = await active_session.execute(statement)
+            return int(result.rowcount or 0)
+
+        if getattr(getattr(self.ap.persistence_mgr, 'mode', None), 'value', None) == 'cloud_runtime':
+            list_bindings = getattr(self.workspace_service, 'list_active_execution_bindings', None)
+            tenant_uow = getattr(self.ap.persistence_mgr, 'tenant_uow', None)
+            if not callable(list_bindings) or not callable(tenant_uow):
+                raise RuntimeError('Cloud invitation cleanup requires tenant units of work')
+            deleted = 0
+            for binding in await list_bindings():
+                async with tenant_uow(binding.workspace_uuid) as uow:
+                    deleted += await cleanup_session(uow.session, binding.workspace_uuid)
+            return deleted
+        return await self._run(cleanup_session, session=None)
+
+    async def run_expired_invitation_cleanup(self, *, interval_seconds: float = 3600) -> None:
+        """Periodically remove expired records, waiting first so expiry inspection wins."""
+        while True:
+            await asyncio.sleep(interval_seconds)
+            try:
+                await self.cleanup_expired_invitations()
+            except asyncio.CancelledError:
+                raise
+            except Exception:
+                self.ap.logger.exception('Expired Workspace invitation cleanup failed')
+
     async def update_member_role(
         self,
         workspace_uuid: str,
diff --git a/src/langbot/pkg/workspace/invitation_delivery.py b/src/langbot/pkg/workspace/invitation_delivery.py
index 68972360d..42decbf6f 100644
--- a/src/langbot/pkg/workspace/invitation_delivery.py
+++ b/src/langbot/pkg/workspace/invitation_delivery.py
@@ -234,22 +234,51 @@ class InvitationDeliveryService:
     @staticmethod
     def _plain_text(workspace_name: str, invitation_link: str) -> str:
         return (
-            f'You were invited to join {workspace_name} on LangBot.\n\n'
-            f'Open this secure invitation link to continue:\n{invitation_link}\n'
+            'You have been invited to LangBot Cloud\n\n'
+            f'Join the Workspace “{workspace_name}” to collaborate with your team.\n\n'
+            f'Accept invitation: {invitation_link}\n\n'
+            'This secure invitation expires in 7 days and can only be accepted by the email address '
+            'it was sent to. If you were not expecting it, you can safely ignore this email.\n'
         )
 
     @staticmethod
     def _html(workspace_name: str, invitation_link: str) -> str:
-        escaped_workspace = workspace_name.replace('&', '&amp;').replace('<', '&lt;').replace('>', '&gt;')
-        escaped_link = (
-            invitation_link.replace('&', '&amp;').replace('<', '&lt;').replace('>', '&gt;').replace('"', '&quot;')
-        )
-        return (
-            '<p>You were invited to join '
-            f'<strong>{escaped_workspace}</strong> on LangBot.</p>'
-            f'<p><a href="{escaped_link}">Accept the invitation</a></p>'
-            f'<p>{escaped_link}</p>'
-        )
+        import html
+
+        escaped_workspace = html.escape(workspace_name, quote=True)
+        escaped_link = html.escape(invitation_link, quote=True)
+        return f'''<!doctype html>
+<html lang="en">
+<head>
+  <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width,initial-scale=1">
+  <title>Join {escaped_workspace} on LangBot Cloud</title>
+</head>
+<body style="margin:0;background:#f4f7fb;color:#152033;font-family:Inter,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;">
+  <div style="display:none;max-height:0;overflow:hidden;opacity:0;">You have been invited to join {escaped_workspace} on LangBot Cloud.</div>
+  <table role="presentation" width="100%" cellspacing="0" cellpadding="0" style="background:#f4f7fb;padding:40px 16px;">
+    <tr><td align="center">
+      <table role="presentation" width="100%" cellspacing="0" cellpadding="0" style="max-width:600px;background:#ffffff;border:1px solid #e5eaf2;border-radius:16px;overflow:hidden;box-shadow:0 12px 32px rgba(20,49,93,.08);">
+        <tr><td style="padding:28px 36px;background:linear-gradient(135deg,#0f172a,#1d4ed8);color:#ffffff;">
+          <div style="font-size:14px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;opacity:.78;">LangBot Cloud</div>
+          <div style="font-size:26px;font-weight:700;margin-top:8px;line-height:1.25;">You’re invited</div>
+        </td></tr>
+        <tr><td style="padding:36px;">
+          <p style="margin:0 0 18px;font-size:16px;line-height:1.65;color:#475569;">You have been invited to collaborate in this Workspace:</p>
+          <div style="margin:0 0 26px;padding:18px 20px;background:#f8fafc;border:1px solid #e2e8f0;border-radius:12px;font-size:18px;font-weight:700;color:#0f172a;">{escaped_workspace}</div>
+          <table role="presentation" cellspacing="0" cellpadding="0"><tr><td style="border-radius:9px;background:#2563eb;">
+            <a href="{escaped_link}" style="display:inline-block;padding:13px 22px;color:#ffffff;text-decoration:none;font-size:15px;font-weight:700;">Accept invitation</a>
+          </td></tr></table>
+          <p style="margin:26px 0 8px;font-size:14px;line-height:1.6;color:#64748b;">This invitation expires in 7 days and is bound to the email address that received it.</p>
+          <p style="margin:0 0 8px;font-size:13px;line-height:1.6;color:#94a3b8;">If the button does not work, copy and paste this URL into your browser:</p>
+          <p style="margin:0;padding:12px;background:#f8fafc;border-radius:8px;word-break:break-all;font-size:12px;line-height:1.55;color:#475569;">{escaped_link}</p>
+        </td></tr>
+        <tr><td style="padding:20px 36px;border-top:1px solid #eef2f7;font-size:12px;line-height:1.6;color:#94a3b8;">If you were not expecting this invitation, you can safely ignore this email.</td></tr>
+      </table>
+    </td></tr>
+  </table>
+</body>
+</html>'''
 
     @staticmethod
     def _number(value: typing.Any, default: float) -> float:
diff --git a/tests/unit_tests/workspace/test_invitation_delivery.py b/tests/unit_tests/workspace/test_invitation_delivery.py
index cd45c21d1..34a7f5512 100644
--- a/tests/unit_tests/workspace/test_invitation_delivery.py
+++ b/tests/unit_tests/workspace/test_invitation_delivery.py
@@ -86,3 +86,20 @@ async def test_environment_mapping_enables_provider_without_leaking_secret(monke
         'https://env.langbot.example/invitations/accept#token=lbi_secret'
     )
     assert service.capability() == {'enabled': True, 'provider': 'smtp'}
+
+
+async def test_cloud_invitation_email_has_branded_html_plain_fallback_and_expiry_copy():
+    service = InvitationDeliveryService(_app({}))
+    link = 'https://cloud.langbot.app/invitations/accept#token=lbi_secret&next=<unsafe>'
+
+    text = service._plain_text('Research & Development', link)
+    html = service._html('Research & Development', link)
+
+    assert 'LangBot Cloud' in text
+    assert 'Research & Development' in text
+    assert '7 days' in text
+    assert link in text
+    assert 'Accept invitation' in html
+    assert 'Research &amp; Development' in html
+    assert 'expires in 7 days' in html
+    assert 'lbi_secret&amp;next=&lt;unsafe&gt;' in html
diff --git a/tests/unit_tests/workspace/test_workspace_collaboration.py b/tests/unit_tests/workspace/test_workspace_collaboration.py
index a5fbb7bca..b11f1975c 100644
--- a/tests/unit_tests/workspace/test_workspace_collaboration.py
+++ b/tests/unit_tests/workspace/test_workspace_collaboration.py
@@ -1,6 +1,7 @@
 from __future__ import annotations
 
 import asyncio
+import datetime
 import uuid
 from contextlib import asynccontextmanager
 from types import SimpleNamespace
@@ -19,6 +20,7 @@ from langbot.pkg.entity.persistence.workspace import (
 )
 from langbot.pkg.workspace.collaboration import (
     InvitationEmailMismatchError,
+    InvitationExpiredError,
     InvitationRoleError,
     InvitationUsedError,
     LastOwnerError,
@@ -159,6 +161,23 @@ async def test_invitation_rejects_owner_role_and_email_mismatch(collaboration_co
         await service.accept_invitation(created.token, wrong_account.uuid)
 
 
+async def test_expired_invitation_is_inspectable_before_periodic_cleanup_deletes_it(collaboration_context):
+    service, _, session_factory, _, workspace, owner_membership = collaboration_context
+    created = await service.create_invitation(
+        workspace.uuid, owner_membership, 'expired@example.com', 'viewer'
+    )
+    async with session_factory.begin() as session:
+        invitation = await session.get(WorkspaceInvitation, created.invitation.uuid)
+        invitation.expires_at = service._utcnow() - datetime.timedelta(minutes=1)
+
+    with pytest.raises(InvitationExpiredError):
+        await service.inspect_invitation(created.token)
+
+    assert await service.cleanup_expired_invitations(retention=datetime.timedelta(0)) == 1
+    async with session_factory() as session:
+        assert await session.get(WorkspaceInvitation, created.invitation.uuid) is None
+
+
 async def test_last_owner_cannot_be_demoted(collaboration_context):
     service, _, session_factory, _, workspace, owner_membership = collaboration_context
     created = await service.create_invitation(
diff --git a/web/src/app/auth/space/callback/page.tsx b/web/src/app/auth/space/callback/page.tsx
index e37fc55d8..2884fd951 100644
--- a/web/src/app/auth/space/callback/page.tsx
+++ b/web/src/app/auth/space/callback/page.tsx
@@ -4,6 +4,7 @@ import { httpClient } from '@/app/infra/http/HttpClient';
 import {
   beginAuthenticatedSession,
   bootstrapWorkspaceSession,
+  getPendingInvitationToken,
 } from '@/app/infra/http';
 import { toast } from 'sonner';
 import { useTranslation } from 'react-i18next';
@@ -91,6 +92,10 @@ function SpaceOAuthCallbackContent() {
         }
 
         beginAuthenticatedSession(response.token, response.user);
+        if (getPendingInvitationToken()) {
+          navigate('/invitations/accept', { replace: true });
+          return;
+        }
         const workspaceResult = await bootstrapWorkspaceSession({
           preferredWorkspaceUuid: response.workspace_uuid,
         });
diff --git a/web/src/app/invitations/accept/page.tsx b/web/src/app/invitations/accept/page.tsx
index 21df23940..20eb93fa5 100644
--- a/web/src/app/invitations/accept/page.tsx
+++ b/web/src/app/invitations/accept/page.tsx
@@ -92,6 +92,7 @@ export default function AcceptInvitationPage() {
   const [errorMessage, setErrorMessage] = useState('');
   const [password, setPassword] = useState('');
   const [confirmPassword, setConfirmPassword] = useState('');
+  const [passwordRegistrationEnabled, setPasswordRegistrationEnabled] = useState(false);
 
   useEffect(() => {
     const handleHashChange = () => setInvitationHash(window.location.hash);
@@ -108,6 +109,9 @@ export default function AcceptInvitationPage() {
       'error',
     );
     setToken(invitationToken);
+    backendClient.getAccountInfo().then((info) => {
+      setPasswordRegistrationEnabled(info.password_login_enabled !== false);
+    }).catch(() => setPasswordRegistrationEnabled(false));
     if (!invitationToken) {
       setErrorMessage(t('workspace.invitationMissing'));
       setStatus('error');
@@ -210,6 +214,15 @@ export default function AcceptInvitationPage() {
     });
   }
 
+  function switchAccount() {
+    clearUserInfo();
+    if (typeof window !== 'undefined') {
+      localStorage.removeItem('token');
+      localStorage.removeItem('userEmail');
+    }
+    navigate('/login?invitation=1&auto=space', { replace: true });
+  }
+
   function returnToLogin() {
     clearUserInfo();
     if (typeof window !== 'undefined') {
@@ -221,6 +234,11 @@ export default function AcceptInvitationPage() {
 
   const hasLoginToken =
     typeof window !== 'undefined' && Boolean(localStorage.getItem('token'));
+  const currentEmail =
+    typeof window !== 'undefined' ? localStorage.getItem('userEmail') : null;
+  const currentAccountMatches =
+    currentEmail?.trim().toLocaleLowerCase() ===
+    view?.invitation.normalized_email.toLocaleLowerCase();
 
   return (
     <div className="flex min-h-screen items-center justify-center bg-gray-50 p-4 dark:bg-neutral-900">
@@ -285,7 +303,7 @@ export default function AcceptInvitationPage() {
                 </div>
               )}
 
-              {hasLoginToken ? (
+              {hasLoginToken && currentAccountMatches ? (
                 <Button
                   className="w-full"
                   disabled={status === 'submitting'}
@@ -296,7 +314,16 @@ export default function AcceptInvitationPage() {
                   )}
                   {t('workspace.acceptAsCurrentAccount')}
                 </Button>
-              ) : (
+              ) : hasLoginToken ? (
+                <div className="space-y-3">
+                  <div className="rounded-lg border border-amber-300 bg-amber-50 p-3 text-sm text-amber-900 dark:bg-amber-950/30 dark:text-amber-100">
+                    {t('workspace.invitationEmailMismatch')}
+                  </div>
+                  <Button className="w-full" onClick={switchAccount}>
+                    {t('workspace.switchAccount')}
+                  </Button>
+                </div>
+              ) : passwordRegistrationEnabled ? (
                 <>
                   <div className="space-y-2">
                     <label
@@ -370,6 +397,10 @@ export default function AcceptInvitationPage() {
                     {t('workspace.alreadyHaveAccount')}
                   </Button>
                 </>
+              ) : (
+                <Button className="w-full" onClick={() => navigate('/login?invitation=1&auto=space')}>
+                  {t('common.loginWithSpace')}
+                </Button>
               )}
             </div>
           )}
diff --git a/web/src/app/register/page.tsx b/web/src/app/register/page.tsx
index 04f3e4fb5..fb155ac56 100644
--- a/web/src/app/register/page.tsx
+++ b/web/src/app/register/page.tsx
@@ -44,6 +44,7 @@ export default function Register() {
   const navigate = useNavigate();
   const { t } = useTranslation();
   const [spaceLoading, setSpaceLoading] = useState(false);
+  const [passwordRegistrationEnabled, setPasswordRegistrationEnabled] = useState(true);
 
   const form = useForm<z.infer<ReturnType<typeof formSchema>>>({
     resolver: zodResolver(formSchema(t)),
@@ -55,6 +56,10 @@ export default function Register() {
 
   useEffect(() => {
     getIsInitialized();
+    httpClient
+      .getAccountInfo()
+      .then((info) => setPasswordRegistrationEnabled(info.password_login_enabled !== false))
+      .catch(() => setPasswordRegistrationEnabled(true));
   }, []);
 
   function getIsInitialized() {
@@ -159,20 +164,22 @@ export default function Register() {
             </p>
           </div>
 
-          <div className="relative">
-            <div className="absolute inset-0 flex items-center">
-              <span className="w-full border-t" />
-            </div>
-            <div className="relative flex justify-center text-xs uppercase">
-              <span className="bg-white dark:bg-card px-2 text-muted-foreground">
-                {t('common.or')}
-              </span>
-            </div>
-          </div>
+          {passwordRegistrationEnabled && (
+            <>
+              <div className="relative">
+                <div className="absolute inset-0 flex items-center">
+                  <span className="w-full border-t" />
+                </div>
+                <div className="relative flex justify-center text-xs uppercase">
+                  <span className="bg-white dark:bg-card px-2 text-muted-foreground">
+                    {t('common.or')}
+                  </span>
+                </div>
+              </div>
 
-          {/* Local Account Registration */}
-          <Form {...form}>
-            <form onSubmit={form.handleSubmit(onSubmit)} className="space-y-6">
+              {/* Local Account Registration */}
+              <Form {...form}>
+                <form onSubmit={form.handleSubmit(onSubmit)} className="space-y-6">
               <FormField
                 control={form.control}
                 name="email"
@@ -223,8 +230,10 @@ export default function Register() {
               >
                 {t('register.registerWithPassword')}
               </Button>
-            </form>
-          </Form>
+                </form>
+              </Form>
+            </>
+          )}
 
           <p className="text-xs text-center text-muted-foreground">
             {t('common.agreementNotice')}{' '}
diff --git a/web/src/i18n/locales/en-US.ts b/web/src/i18n/locales/en-US.ts
index e635f5f3d..85fa8206e 100644
--- a/web/src/i18n/locales/en-US.ts
+++ b/web/src/i18n/locales/en-US.ts
@@ -80,7 +80,7 @@ const enUS = {
     loading: 'Loading...',
     fieldRequired: 'This field is required',
     or: 'or',
-    loginWithSpace: 'Login with Space',
+    loginWithSpace: 'Login with LangBot Account',
     spaceLoginRecommended:
       'Recommended: Use official stable model APIs and cloud services',
     loginLocal: 'Login with local account',
@@ -277,7 +277,7 @@ const enUS = {
     searchProviders: 'Search providers...',
     langbotModelsDescription: 'Cloud models powered by LangBot Space',
     credits: 'Credits',
-    loginWithSpace: 'Login with Space',
+    loginWithSpace: 'Login with LangBot Account',
     loginToUseModels: 'Login with Space to use cloud models',
     noModels: 'No models configured',
     langbotModels: 'LangBot Models',
@@ -1339,6 +1339,7 @@ const enUS = {
     existingAccountLoginRequired:
       'An account already exists for this email. Sign in to continue.',
     acceptAsCurrentAccount: 'Accept with current account',
+    switchAccount: 'Switch account',
     registerAndAccept: 'Create account and accept',
     alreadyHaveAccount: 'I already have an account',
     confirmPassword: 'Confirm password',
diff --git a/web/src/i18n/locales/es-ES.ts b/web/src/i18n/locales/es-ES.ts
index 90ca4e3bd..0c1879dcd 100644
--- a/web/src/i18n/locales/es-ES.ts
+++ b/web/src/i18n/locales/es-ES.ts
@@ -83,7 +83,7 @@ const esES = {
     loading: 'Cargando...',
     fieldRequired: 'Este campo es obligatorio',
     or: 'o',
-    loginWithSpace: 'Iniciar sesión con Space',
+    loginWithSpace: 'Iniciar sesión con una cuenta de LangBot',
     spaceLoginRecommended:
       'Recomendado: Usa API de modelos oficiales estables y servicios en la nube',
     loginLocal: 'Iniciar sesión con cuenta local',
@@ -286,7 +286,7 @@ const esES = {
     searchProviders: 'Buscar proveedores...',
     langbotModelsDescription: 'Modelos en la nube impulsados por LangBot Space',
     credits: 'Créditos',
-    loginWithSpace: 'Iniciar sesión con Space',
+    loginWithSpace: 'Iniciar sesión con una cuenta de LangBot',
     loginToUseModels: 'Inicia sesión con Space para usar modelos en la nube',
     noModels: 'No hay modelos configurados',
     langbotModels: 'Modelos LangBot',
diff --git a/web/src/i18n/locales/ja-JP.ts b/web/src/i18n/locales/ja-JP.ts
index a0b816347..def29b657 100644
--- a/web/src/i18n/locales/ja-JP.ts
+++ b/web/src/i18n/locales/ja-JP.ts
@@ -81,7 +81,7 @@ const jaJP = {
     loading: '読み込み中...',
     fieldRequired: 'この項目は必須です',
     or: 'または',
-    loginWithSpace: 'Space でログイン',
+    loginWithSpace: 'LangBot アカウントでログイン',
     spaceLoginRecommended:
       'おすすめ：公式の安定したモデル API とクラウドサービスを利用',
     loginLocal: 'ローカルアカウントでログイン',
@@ -282,7 +282,7 @@ const jaJP = {
     searchProviders: 'プロバイダーを検索...',
     langbotModelsDescription: 'LangBot Space が提供するクラウドモデル',
     credits: 'クレジット',
-    loginWithSpace: 'Space でログイン',
+    loginWithSpace: 'LangBot アカウントでログイン',
     loginToUseModels: 'Space でログインしてクラウドモデルを使用',
     noModels: 'モデルがありません',
     langbotModels: 'LangBot モデル',
@@ -1340,6 +1340,7 @@ const jaJP = {
     existingAccountLoginRequired:
       'このメールアドレスのアカウントは既に存在します。ログインしてください。',
     acceptAsCurrentAccount: '現在のアカウントで承認',
+    switchAccount: 'アカウントを切り替える',
     registerAndAccept: 'アカウントを作成して承認',
     alreadyHaveAccount: 'アカウントを持っています',
     confirmPassword: 'パスワードを確認',
diff --git a/web/src/i18n/locales/ru-RU.ts b/web/src/i18n/locales/ru-RU.ts
index e74176307..c081fefbf 100644
--- a/web/src/i18n/locales/ru-RU.ts
+++ b/web/src/i18n/locales/ru-RU.ts
@@ -80,7 +80,7 @@ const ruRU = {
     loading: 'Загрузка...',
     fieldRequired: 'Это поле обязательно для заполнения',
     or: 'или',
-    loginWithSpace: 'Войти через Space',
+    loginWithSpace: 'Войти с аккаунтом LangBot',
     spaceLoginRecommended:
       'Рекомендуется: Используйте официальные стабильные API моделей и облачные сервисы',
     loginLocal: 'Войти с локальной учётной записью',
@@ -284,7 +284,7 @@ const ruRU = {
     searchProviders: 'Поиск провайдеров...',
     langbotModelsDescription: 'Облачные модели на базе LangBot Space',
     credits: 'Кредиты',
-    loginWithSpace: 'Войти через Space',
+    loginWithSpace: 'Войти с аккаунтом LangBot',
     loginToUseModels: 'Войдите через Space, чтобы использовать облачные модели',
     noModels: 'Модели не настроены',
     langbotModels: 'Модели LangBot',
diff --git a/web/src/i18n/locales/th-TH.ts b/web/src/i18n/locales/th-TH.ts
index 1a864226f..3af8ad285 100644
--- a/web/src/i18n/locales/th-TH.ts
+++ b/web/src/i18n/locales/th-TH.ts
@@ -80,7 +80,7 @@ const thTH = {
     loading: 'กำลังโหลด...',
     fieldRequired: 'ช่องนี้จำเป็นต้องกรอก',
     or: 'หรือ',
-    loginWithSpace: 'เข้าสู่ระบบด้วย Space',
+    loginWithSpace: 'เข้าสู่ระบบด้วยบัญชี LangBot',
     spaceLoginRecommended:
       'แนะนำ: ใช้ API โมเดลที่เสถียรอย่างเป็นทางการและบริการคลาวด์',
     loginLocal: 'เข้าสู่ระบบด้วยบัญชีท้องถิ่น',
@@ -273,7 +273,7 @@ const thTH = {
     searchProviders: 'ค้นหาผู้ให้บริการ...',
     langbotModelsDescription: 'โมเดลคลาวด์ขับเคลื่อนโดย LangBot Space',
     credits: 'เครดิต',
-    loginWithSpace: 'เข้าสู่ระบบด้วย Space',
+    loginWithSpace: 'เข้าสู่ระบบด้วยบัญชี LangBot',
     loginToUseModels: 'เข้าสู่ระบบด้วย Space เพื่อใช้โมเดลคลาวด์',
     noModels: 'ยังไม่มีโมเดลที่กำหนดค่า',
     langbotModels: 'โมเดล LangBot',
diff --git a/web/src/i18n/locales/vi-VN.ts b/web/src/i18n/locales/vi-VN.ts
index 98ba9346e..0ed95e383 100644
--- a/web/src/i18n/locales/vi-VN.ts
+++ b/web/src/i18n/locales/vi-VN.ts
@@ -81,7 +81,7 @@ const viVN = {
     loading: 'Đang tải...',
     fieldRequired: 'Trường này là bắt buộc',
     or: 'hoặc',
-    loginWithSpace: 'Đăng nhập với Space',
+    loginWithSpace: 'Đăng nhập bằng tài khoản LangBot',
     spaceLoginRecommended:
       'Khuyến nghị: Sử dụng API mô hình ổn định chính thức và dịch vụ đám mây',
     loginLocal: 'Đăng nhập với tài khoản cục bộ',
@@ -281,7 +281,7 @@ const viVN = {
     searchProviders: 'Tìm kiếm nhà cung cấp...',
     langbotModelsDescription: 'Mô hình đám mây được cung cấp bởi LangBot Space',
     credits: 'Tín dụng',
-    loginWithSpace: 'Đăng nhập với Space',
+    loginWithSpace: 'Đăng nhập bằng tài khoản LangBot',
     loginToUseModels: 'Đăng nhập với Space để sử dụng mô hình đám mây',
     noModels: 'Chưa cấu hình mô hình nào',
     langbotModels: 'Mô hình LangBot',
diff --git a/web/src/i18n/locales/zh-Hans.ts b/web/src/i18n/locales/zh-Hans.ts
index a070e9436..8699cef30 100644
--- a/web/src/i18n/locales/zh-Hans.ts
+++ b/web/src/i18n/locales/zh-Hans.ts
@@ -79,7 +79,7 @@ const zhHans = {
     loading: '加载中...',
     fieldRequired: '此字段为必填项',
     or: '或',
-    loginWithSpace: '通过 Space 登录',
+    loginWithSpace: '使用 LangBot 账号登录',
     spaceLoginRecommended: '推荐：使用官方提供的稳定模型 API 和云服务',
     loginLocal: '使用本地账号登录',
     loginWithPassword: '通过密码登录',
@@ -265,7 +265,7 @@ const zhHans = {
     searchProviders: '搜索供应商...',
     langbotModelsDescription: 'LangBot Space 提供的云端模型',
     credits: '积分',
-    loginWithSpace: '通过 Space 登录',
+    loginWithSpace: '使用 LangBot 账号登录',
     loginToUseModels: '通过 Space 登录以使用云端模型',
     noModels: '暂无模型',
     langbotModels: 'LangBot 模型',
@@ -1270,6 +1270,7 @@ const zhHans = {
     invitationEmailMismatch: '此邀请属于另一个邮箱地址。',
     existingAccountLoginRequired: '此邮箱已有账户，请登录后继续。',
     acceptAsCurrentAccount: '使用当前账户接受',
+    switchAccount: '切换账号',
     registerAndAccept: '创建账户并接受',
     alreadyHaveAccount: '我已有账户',
     confirmPassword: '确认密码',
diff --git a/web/src/i18n/locales/zh-Hant.ts b/web/src/i18n/locales/zh-Hant.ts
index 39a114a95..b98817e74 100644
--- a/web/src/i18n/locales/zh-Hant.ts
+++ b/web/src/i18n/locales/zh-Hant.ts
@@ -79,7 +79,7 @@ const zhHant = {
     loading: '載入中...',
     fieldRequired: '此欄位為必填',
     or: '或',
-    loginWithSpace: '透過 Space 登入',
+    loginWithSpace: '使用 LangBot 帳號登入',
     spaceLoginRecommended: '推薦：使用官方提供的穩定模型 API 和雲服務',
     loginLocal: '使用本地帳號登入',
     loginWithPassword: '透過密碼登入',
@@ -263,7 +263,7 @@ const zhHant = {
     searchProviders: '搜尋供應商...',
     langbotModelsDescription: '由 LangBot Space 提供的雲端模型',
     credits: '積分',
-    loginWithSpace: '使用 Space 登入',
+    loginWithSpace: '使用 LangBot 帳號登入',
     loginToUseModels: '使用 Space 登入以使用雲端模型',
     noModels: '暫無模型',
     langbotModels: 'LangBot 模型',