diff --git a/src/components/LogoV2/CondensedLogo.tsx b/src/components/LogoV2/CondensedLogo.tsx
index 13419d62c..0e7891200 100644
--- a/src/components/LogoV2/CondensedLogo.tsx
+++ b/src/components/LogoV2/CondensedLogo.tsx
@@ -7,7 +7,7 @@ import { useAppState } from '../../state/AppState.js';
 import { getEffortSuffix } from '../../utils/effort.js';
 import { truncate } from '../../utils/format.js';
 import { isFullscreenEnvEnabled } from '../../utils/fullscreen.js';
-import { formatModelAndBilling, getLogoDisplayData, truncatePath } from '../../utils/logoV2Utils.js';
+import { formatModelAndBilling, getLogoDisplayData, isNotLoggedIn, truncatePath } from '../../utils/logoV2Utils.js';
 import { renderModelSetting } from '../../utils/model/model.js';
 import { OffscreenFreeze } from '../OffscreenFreeze.js';
 import { AnimatedClawd } from './AnimatedClawd.js';
@@ -23,7 +23,10 @@ export function CondensedLogo(): ReactNode {
   const { columns } = useTerminalSize();
   const agent = useAppState(s => s.agent);
   const effortValue = useAppState(s => s.effortValue);
+  // Subscribe to authVersion to re-render after login/logout
+  useAppState(s => s.authVersion);
   const model = useMainLoopModel();
+  const notLoggedIn = isNotLoggedIn();
   const modelDisplayName = renderModelSetting(model);
   const { version, cwd, billingType, agentName: agentNameFromSettings } = getLogoDisplayData();
 
@@ -92,7 +95,9 @@ export function CondensedLogo(): ReactNode {
             </Text>{' '}
             <Text dimColor>v{truncatedVersion}</Text>
           </Text>
-          {shouldSplit ? (
+          {notLoggedIn ? (
+            <Text dimColor>Not logged in</Text>
+          ) : shouldSplit ? (
             <>
               <Text dimColor>{truncatedModel}</Text>
               <Text dimColor>{truncatedBilling}</Text>
diff --git a/src/components/LogoV2/LogoV2.tsx b/src/components/LogoV2/LogoV2.tsx
index 2c998a224..cfec387fc 100644
--- a/src/components/LogoV2/LogoV2.tsx
+++ b/src/components/LogoV2/LogoV2.tsx
@@ -11,6 +11,7 @@ import {
   getRecentActivitySync,
   getRecentReleaseNotesSync,
   getLogoDisplayData,
+  isNotLoggedIn,
 } from '../../utils/logoV2Utils.js';
 import { truncate } from '../../utils/format.js';
 import { getDisplayPath } from '../../utils/file.js';
@@ -82,6 +83,8 @@ export function LogoV2(): React.ReactNode {
   const showOverageCreditUpsell = useShowOverageCreditUpsell();
   const agent = useAppState(s => s.agent);
   const effortValue = useAppState(s => s.effortValue);
+  // Subscribe to authVersion to re-render after login/logout
+  useAppState(s => s.authVersion);
 
   const config = getGlobalConfig();
 
@@ -136,6 +139,7 @@ export function LogoV2(): React.ReactNode {
   }, [showOverageCreditUpsell, showOnboarding, showGuestPassesUpsell, isCondensedMode]);
 
   const model = useMainLoopModel();
+  const notLoggedIn = isNotLoggedIn();
   const fullModelDisplayName = renderModelSetting(model);
   const { version, cwd, billingType, agentName: agentNameFromSettings } = getLogoDisplayData();
   // Prefer AppState.agent (set from --agent CLI flag) over settings
@@ -247,8 +251,8 @@ export function LogoV2(): React.ReactNode {
             <Box marginY={1}>
               <Clawd />
             </Box>
-            <Text dimColor>{modelDisplayName}</Text>
-            <Text dimColor>{billingType}</Text>
+            <Text dimColor>{notLoggedIn ? 'Not logged in' : modelDisplayName}</Text>
+            {!notLoggedIn && <Text dimColor>{billingType}</Text>}
             <Text dimColor>{agentName ? `@${agentName} · ${truncatedCwd}` : truncatedCwd}</Text>
           </Box>
         </OffscreenFreeze>
@@ -269,8 +273,9 @@ export function LogoV2(): React.ReactNode {
   }
 
   const welcomeMessage = formatWelcomeMessage(username);
-  const modelLine =
-    !process.env.IS_DEMO && config.oauthAccount?.organizationName
+  const modelLine = notLoggedIn
+    ? 'Not logged in'
+    : !process.env.IS_DEMO && config.oauthAccount?.organizationName
       ? `${modelDisplayName} · ${billingType} · ${config.oauthAccount.organizationName}`
       : `${modelDisplayName} · ${billingType}`;
   // Calculate cwd width accounting for agent name if present
diff --git a/src/utils/logoV2Utils.ts b/src/utils/logoV2Utils.ts
index 4357119d7..861d45200 100644
--- a/src/utils/logoV2Utils.ts
+++ b/src/utils/logoV2Utils.ts
@@ -1,7 +1,8 @@
 import { getDirectConnectServerUrl, getSessionId } from '../bootstrap/state.js'
 import { stringWidth } from '@anthropic/ink'
 import type { LogOption } from '../types/logs.js'
-import { getSubscriptionName, isClaudeAISubscriber } from './auth.js'
+import { getAnthropicApiKey } from './auth.js'
+import { hasCoStrictCredentialsSync } from '../costrict/provider/credentials.js'
 import { getCwd } from './cwd.js'
 import { getDisplayPath } from './file.js'
 import {
@@ -9,6 +10,7 @@ import {
   truncateToWidth,
   truncateToWidthNoEllipsis,
 } from './format.js'
+import { getAPIProvider, getProviderDisplayName } from './model/providers.js'
 import { getStoredChangelogFromMemory, parseChangelog } from './releaseNotes.js'
 import { gt } from './semver.js'
 import { loadMessageLogs } from './sessionStorage.js'
@@ -237,12 +239,33 @@ export function formatReleaseNoteForDisplay(
 }
 
 /**
- * Gets the common logo display data used by both LogoV2 and CondensedLogo
+ * Check if user is not logged in
+ * User is considered logged in if they have CoStrict credentials or API key
  */
+export function isNotLoggedIn(): boolean {
+  // 1. CoStrict login (credentials file exists)
+  if (hasCoStrictCredentialsSync()) return false
+
+  const settings = getInitialSettings()
+
+  // 2. Any provider configured via modelType (包括 anthropic/openai/bedrock 等)
+  // 用户通过 /login 选择 provider 后会设置 modelType
+  if (settings.modelType) {
+    return false
+  }
+
+  // 3. Anthropic API Key configured (legacy way without modelType)
+  if (getAnthropicApiKey() !== null) return false
+
+  // None of the above - not logged in
+  return true
+}
+
 export function getLogoDisplayData(): {
   version: string
   cwd: string
   billingType: string
+  isLoggedIn: boolean
   agentName: string | undefined
 } {
   const version = process.env.DEMO_VERSION ?? MACRO.VERSION
@@ -253,15 +276,18 @@ export function getLogoDisplayData(): {
   const cwd = serverUrl
     ? `${displayPath} in ${serverUrl.replace(/^https?:\/\//, '')}`
     : displayPath
-  const billingType = isClaudeAISubscriber()
-    ? getSubscriptionName()
-    : 'API Usage Billing'
+
+  const loggedIn = !isNotLoggedIn()
+  const provider = getAPIProvider()
+  const providerName = getProviderDisplayName(provider)
+  const billingType = loggedIn ? providerName : 'Not logged in'
   const agentName = getInitialSettings().agent
 
   return {
     version,
     cwd,
     billingType,
+    isLoggedIn: loggedIn,
     agentName,
   }
 }
diff --git a/src/utils/model/providers.ts b/src/utils/model/providers.ts
index b5b55444c..45c76d3ca 100644
--- a/src/utils/model/providers.ts
+++ b/src/utils/model/providers.ts
@@ -35,6 +35,32 @@ export function getAPIProviderForStatsig(): AnalyticsMetadata_I_VERIFIED_THIS_IS
   return getAPIProvider() as AnalyticsMetadata_I_VERIFIED_THIS_IS_NOT_CODE_OR_FILEPATHS
 }
 
+/**
+ * Get a human-readable display name for the current API provider
+ */
+export function getProviderDisplayName(provider: APIProvider): string {
+  switch (provider) {
+    case 'firstParty':
+      return 'Anthropic'
+    case 'bedrock':
+      return 'AWS Bedrock'
+    case 'vertex':
+      return 'Google Vertex'
+    case 'foundry':
+      return 'Foundry'
+    case 'openai':
+      return 'OpenAI'
+    case 'gemini':
+      return 'Google Gemini'
+    case 'grok':
+      return 'xAI Grok'
+    case 'costrict':
+      return 'CoStrict'
+    default:
+      return provider
+  }
+}
+
 /**
  * Check if ANTHROPIC_BASE_URL is a first-party Anthropic API URL.
  * Returns true if not set (default API) or points to api.anthropic.com