diff --git a/frontend/src/api/admin/accounts.ts b/frontend/src/api/admin/accounts.ts
index 751da25f..d9b537d8 100644
--- a/frontend/src/api/admin/accounts.ts
+++ b/frontend/src/api/admin/accounts.ts
@@ -550,14 +550,18 @@ export async function getAntigravityDefaultModelMapping(): Promise<Record<string
 export async function refreshOpenAIToken(
   refreshToken: string,
   proxyId?: number | null,
-  endpoint: string = '/admin/openai/refresh-token'
+  endpoint: string = '/admin/openai/refresh-token',
+  clientId?: string
 ): Promise<Record<string, unknown>> {
-  const payload: { refresh_token: string; proxy_id?: number } = {
+  const payload: { refresh_token: string; proxy_id?: number; client_id?: string } = {
     refresh_token: refreshToken
   }
   if (proxyId) {
     payload.proxy_id = proxyId
   }
+  if (clientId) {
+    payload.client_id = clientId
+  }
   const { data } = await apiClient.post<Record<string, unknown>>(endpoint, payload)
   return data
 }
diff --git a/frontend/src/components/account/CreateAccountModal.vue b/frontend/src/components/account/CreateAccountModal.vue
index 6f02a9d9..cff7ae1c 100644
--- a/frontend/src/components/account/CreateAccountModal.vue
+++ b/frontend/src/components/account/CreateAccountModal.vue
@@ -2504,6 +2504,7 @@
         :allow-multiple="form.platform === 'anthropic'"
         :show-cookie-option="form.platform === 'anthropic'"
         :show-refresh-token-option="form.platform === 'openai' || form.platform === 'sora' || form.platform === 'antigravity'"
+        :show-mobile-refresh-token-option="form.platform === 'openai'"
         :show-session-token-option="form.platform === 'sora'"
         :show-access-token-option="form.platform === 'sora'"
         :platform="form.platform"
@@ -2511,6 +2512,7 @@
         @generate-url="handleGenerateUrl"
         @cookie-auth="handleCookieAuth"
         @validate-refresh-token="handleValidateRefreshToken"
+        @validate-mobile-refresh-token="handleOpenAIValidateMobileRT"
         @validate-session-token="handleValidateSessionToken"
         @import-access-token="handleImportAccessToken"
       />
@@ -4360,11 +4362,14 @@ const handleOpenAIExchange = async (authCode: string) => {
 }
 
 // OpenAI 手动 RT 批量验证和创建
-const handleOpenAIValidateRT = async (refreshTokenInput: string) => {
+// OpenAI Mobile RT 使用的 client_id（与后端 openai.SoraClientID 一致）
+const OPENAI_MOBILE_RT_CLIENT_ID = 'app_LlGpXReQgckcGGUo2JrYvtJK'
+
+// OpenAI/Sora RT 批量验证和创建（共享逻辑）
+const handleOpenAIBatchRT = async (refreshTokenInput: string, clientId?: string) => {
   const oauthClient = activeOpenAIOAuth.value
   if (!refreshTokenInput.trim()) return
 
-  // Parse multiple refresh tokens (one per line)
   const refreshTokens = refreshTokenInput
     .split('\n')
     .map((rt) => rt.trim())
@@ -4389,7 +4394,8 @@ const handleOpenAIValidateRT = async (refreshTokenInput: string) => {
       try {
         const tokenInfo = await oauthClient.validateRefreshToken(
           refreshTokens[i],
-          form.proxy_id
+          form.proxy_id,
+          clientId
         )
         if (!tokenInfo) {
           failedCount++
@@ -4399,6 +4405,9 @@ const handleOpenAIValidateRT = async (refreshTokenInput: string) => {
         }
 
         const credentials = oauthClient.buildCredentials(tokenInfo)
+        if (clientId) {
+          credentials.client_id = clientId
+        }
         const oauthExtra = oauthClient.buildExtraInfo(tokenInfo) as Record<string, unknown> | undefined
         const extra = buildOpenAIExtra(oauthExtra)
 
@@ -4410,8 +4419,9 @@ const handleOpenAIValidateRT = async (refreshTokenInput: string) => {
           }
         }
 
-        // Generate account name with index for batch
-        const accountName = refreshTokens.length > 1 ? `${form.name} #${i + 1}` : form.name
+        // Generate account name; fallback to email if name is empty (ent schema requires NotEmpty)
+        const baseName = form.name || tokenInfo.email || 'OpenAI OAuth Account'
+        const accountName = refreshTokens.length > 1 ? `${baseName} #${i + 1}` : baseName
 
         let openaiAccountId: string | number | undefined
 
@@ -4494,6 +4504,12 @@ const handleOpenAIValidateRT = async (refreshTokenInput: string) => {
   }
 }
 
+// 手动输入 RT（Codex CLI client_id，默认）
+const handleOpenAIValidateRT = (rt: string) => handleOpenAIBatchRT(rt)
+
+// 手动输入 Mobile RT（SoraClientID）
+const handleOpenAIValidateMobileRT = (rt: string) => handleOpenAIBatchRT(rt, OPENAI_MOBILE_RT_CLIENT_ID)
+
 // Sora 手动 ST 批量验证和创建
 const handleSoraValidateST = async (sessionTokenInput: string) => {
   const oauthClient = activeOpenAIOAuth.value
diff --git a/frontend/src/components/account/OAuthAuthorizationFlow.vue b/frontend/src/components/account/OAuthAuthorizationFlow.vue
index cc74f8ce..b4c299db 100644
--- a/frontend/src/components/account/OAuthAuthorizationFlow.vue
+++ b/frontend/src/components/account/OAuthAuthorizationFlow.vue
@@ -48,6 +48,17 @@
                 t(getOAuthKey('refreshTokenAuth'))
               }}</span>
             </label>
+            <label v-if="showMobileRefreshTokenOption" class="flex cursor-pointer items-center gap-2">
+              <input
+                v-model="inputMethod"
+                type="radio"
+                value="mobile_refresh_token"
+                class="text-blue-600 focus:ring-blue-500"
+              />
+              <span class="text-sm text-blue-900 dark:text-blue-200">{{
+                t('admin.accounts.oauth.openai.mobileRefreshTokenAuth', '手动输入 Mobile RT')
+              }}</span>
+            </label>
             <label v-if="showSessionTokenOption" class="flex cursor-pointer items-center gap-2">
               <input
                 v-model="inputMethod"
@@ -73,8 +84,8 @@
           </div>
         </div>
 
-        <!-- Refresh Token Input (OpenAI / Antigravity) -->
-        <div v-if="inputMethod === 'refresh_token'" class="space-y-4">
+        <!-- Refresh Token Input (OpenAI / Antigravity / Mobile RT) -->
+        <div v-if="inputMethod === 'refresh_token' || inputMethod === 'mobile_refresh_token'" class="space-y-4">
           <div
             class="rounded-lg border border-blue-300 bg-white/80 p-4 dark:border-blue-600 dark:bg-gray-800/80"
           >
@@ -759,6 +770,7 @@ interface Props {
   methodLabel?: string
   showCookieOption?: boolean // Whether to show cookie auto-auth option
   showRefreshTokenOption?: boolean // Whether to show refresh token input option (OpenAI only)
+  showMobileRefreshTokenOption?: boolean // Whether to show mobile refresh token option (OpenAI only)
   showSessionTokenOption?: boolean // Whether to show session token input option (Sora only)
   showAccessTokenOption?: boolean // Whether to show access token input option (Sora only)
   platform?: AccountPlatform // Platform type for different UI/text
@@ -776,6 +788,7 @@ const props = withDefaults(defineProps<Props>(), {
   methodLabel: 'Authorization Method',
   showCookieOption: true,
   showRefreshTokenOption: false,
+  showMobileRefreshTokenOption: false,
   showSessionTokenOption: false,
   showAccessTokenOption: false,
   platform: 'anthropic',
@@ -787,6 +800,7 @@ const emit = defineEmits<{
   'exchange-code': [code: string]
   'cookie-auth': [sessionKey: string]
   'validate-refresh-token': [refreshToken: string]
+  'validate-mobile-refresh-token': [refreshToken: string]
   'validate-session-token': [sessionToken: string]
   'import-access-token': [accessToken: string]
   'update:inputMethod': [method: AuthInputMethod]
@@ -834,7 +848,7 @@ const oauthState = ref('')
 const projectId = ref('')
 
 // Computed: show method selection when either cookie or refresh token option is enabled
-const showMethodSelection = computed(() => props.showCookieOption || props.showRefreshTokenOption || props.showSessionTokenOption || props.showAccessTokenOption)
+const showMethodSelection = computed(() => props.showCookieOption || props.showRefreshTokenOption || props.showMobileRefreshTokenOption || props.showSessionTokenOption || props.showAccessTokenOption)
 
 // Clipboard
 const { copied, copyToClipboard } = useClipboard()
@@ -945,7 +959,11 @@ const handleCookieAuth = () => {
 
 const handleValidateRefreshToken = () => {
   if (refreshTokenInput.value.trim()) {
-    emit('validate-refresh-token', refreshTokenInput.value.trim())
+    if (inputMethod.value === 'mobile_refresh_token') {
+      emit('validate-mobile-refresh-token', refreshTokenInput.value.trim())
+    } else {
+      emit('validate-refresh-token', refreshTokenInput.value.trim())
+    }
   }
 }
 
diff --git a/frontend/src/composables/useAccountOAuth.ts b/frontend/src/composables/useAccountOAuth.ts
index b6f33186..564e7d95 100644
--- a/frontend/src/composables/useAccountOAuth.ts
+++ b/frontend/src/composables/useAccountOAuth.ts
@@ -3,7 +3,7 @@ import { useAppStore } from '@/stores/app'
 import { adminAPI } from '@/api/admin'
 
 export type AddMethod = 'oauth' | 'setup-token'
-export type AuthInputMethod = 'manual' | 'cookie' | 'refresh_token' | 'session_token' | 'access_token'
+export type AuthInputMethod = 'manual' | 'cookie' | 'refresh_token' | 'mobile_refresh_token' | 'session_token' | 'access_token'
 
 export interface OAuthState {
   authUrl: string
diff --git a/frontend/src/composables/useOpenAIOAuth.ts b/frontend/src/composables/useOpenAIOAuth.ts
index 0f777a38..8f8d7075 100644
--- a/frontend/src/composables/useOpenAIOAuth.ts
+++ b/frontend/src/composables/useOpenAIOAuth.ts
@@ -126,9 +126,11 @@ export function useOpenAIOAuth(options?: UseOpenAIOAuthOptions) {
   }
 
   // Validate refresh token and get full token info
+  // clientId: 指定 OAuth client_id（用于第三方渠道获取的 RT，如 app_LlGpXReQgckcGGUo2JrYvtJK）
   const validateRefreshToken = async (
     refreshToken: string,
-    proxyId?: number | null
+    proxyId?: number | null,
+    clientId?: string
   ): Promise<OpenAITokenInfo | null> => {
     if (!refreshToken.trim()) {
       error.value = 'Missing refresh token'
@@ -143,11 +145,12 @@ export function useOpenAIOAuth(options?: UseOpenAIOAuthOptions) {
       const tokenInfo = await adminAPI.accounts.refreshOpenAIToken(
         refreshToken.trim(),
         proxyId,
-        `${endpointPrefix}/refresh-token`
+        `${endpointPrefix}/refresh-token`,
+        clientId
       )
       return tokenInfo as OpenAITokenInfo
     } catch (err: any) {
-      error.value = err.response?.data?.detail || 'Failed to validate refresh token'
+      error.value = err.response?.data?.detail || err.message || 'Failed to validate refresh token'
       appStore.showError(error.value)
       return null
     } finally {