diff --git a/desktop/src/__tests__/generalSettings.test.tsx b/desktop/src/__tests__/generalSettings.test.tsx
index 0a6fb50e..40367de5 100644
--- a/desktop/src/__tests__/generalSettings.test.tsx
+++ b/desktop/src/__tests__/generalSettings.test.tsx
@@ -1683,6 +1683,100 @@ describe('Settings > Providers tab', () => {
     })
   })
 
+  it('uses request model env instead of cc-switch display model names when testing pasted settings JSON', async () => {
+    providerStoreState.testConfig = vi.fn().mockResolvedValue({
+      connectivity: {
+        success: false,
+        latencyMs: 3,
+        error: '未配置供应商',
+        modelUsed: 'claude-sonnet-4-6',
+        httpStatus: 503,
+      },
+    })
+    providerStoreState.presets = [
+      {
+        id: 'deepseek',
+        name: 'DeepSeek',
+        baseUrl: 'https://api.deepseek.com/anthropic',
+        apiFormat: 'anthropic',
+        defaultModels: {
+          main: 'deepseek-v4-pro',
+          haiku: 'deepseek-v4-flash',
+          sonnet: 'deepseek-v4-pro',
+          opus: 'deepseek-v4-pro',
+        },
+        needsApiKey: true,
+        websiteUrl: '',
+      },
+      {
+        id: 'custom',
+        name: 'Custom',
+        baseUrl: '',
+        apiFormat: 'anthropic',
+        defaultModels: {
+          main: '',
+          haiku: '',
+          sonnet: '',
+          opus: '',
+        },
+        needsApiKey: true,
+        websiteUrl: '',
+      },
+    ]
+
+    render(<Settings />)
+
+    fireEvent.click(screen.getByRole('button', { name: /Add Provider|添加服务商/i }))
+    const dialog = screen.getByRole('dialog')
+    const settingsTextarea = await waitFor(() => {
+      const textarea = dialog.querySelector('textarea')
+      expect(textarea?.value).toContain('"ANTHROPIC_MODEL"')
+      return textarea as HTMLTextAreaElement
+    })
+
+    fireEvent.change(settingsTextarea, {
+      target: {
+        value: JSON.stringify({
+          env: {
+            ANTHROPIC_API_KEY: 'PROXY_MANAGED',
+            ANTHROPIC_BASE_URL: 'http://127.0.0.1:15721',
+            ANTHROPIC_DEFAULT_FABLE_MODEL: 'Qwen3Coder',
+            ANTHROPIC_DEFAULT_HAIKU_MODEL: 'claude-haiku-4-5',
+            ANTHROPIC_DEFAULT_HAIKU_MODEL_NAME: 'Qwen3Coder',
+            ANTHROPIC_DEFAULT_OPUS_MODEL: 'claude-opus-4-8',
+            ANTHROPIC_DEFAULT_OPUS_MODEL_NAME: 'Qwen3Coder',
+            ANTHROPIC_DEFAULT_SONNET_MODEL: 'claude-sonnet-4-6',
+            ANTHROPIC_DEFAULT_SONNET_MODEL_NAME: 'Qwen3Coder',
+          },
+        }, null, 2),
+      },
+    })
+
+    await waitFor(() => {
+      expect(within(dialog).getByLabelText(/Main Model|主模型/i)).toHaveValue('claude-sonnet-4-6')
+      expect(within(dialog).getByLabelText(/Haiku Model/i)).toHaveValue('claude-haiku-4-5')
+      expect(within(dialog).getByLabelText(/Opus Model/i)).toHaveValue('claude-opus-4-8')
+    })
+
+    fireEvent.click(within(dialog).getByRole('button', { name: /Test Connection/i }))
+
+    await waitFor(() => {
+      expect(providerStoreState.testConfig).toHaveBeenCalledWith(expect.objectContaining({
+        baseUrl: 'http://127.0.0.1:15721',
+        apiKey: 'PROXY_MANAGED',
+        modelId: 'claude-sonnet-4-6',
+        authStrategy: 'api_key',
+        apiFormat: 'anthropic',
+      }))
+    })
+    expect(providerStoreState.testConfig).not.toHaveBeenCalledWith(expect.objectContaining({
+      modelId: 'Qwen3Coder',
+    }))
+    expect(providerStoreState.testConfig).not.toHaveBeenCalledWith(expect.objectContaining({
+      modelId: 'deepseek-v4-pro',
+    }))
+  })
+
   it('keeps the provider form locked while save is in flight', async () => {
     let resolveCreate!: (provider: SavedProvider) => void
     providerStoreState.createProvider = vi.fn().mockImplementation(() => new Promise<SavedProvider>((resolve) => {
diff --git a/desktop/src/lib/__tests__/providerSettingsJson.test.ts b/desktop/src/lib/__tests__/providerSettingsJson.test.ts
index 6bd9795d..d6dd7300 100644
--- a/desktop/src/lib/__tests__/providerSettingsJson.test.ts
+++ b/desktop/src/lib/__tests__/providerSettingsJson.test.ts
@@ -24,6 +24,22 @@ describe('provider settings JSON helpers', () => {
     expect(masked.env.OTHER_VALUE).toBe('visible')
   })
 
+  it('keeps cc-switch proxy-managed placeholders visible', () => {
+    const raw = JSON.stringify({
+      env: {
+        ANTHROPIC_API_KEY: 'PROXY_MANAGED',
+        ANTHROPIC_AUTH_TOKEN: 'proxy-managed',
+        OTHER_VALUE: 'visible',
+      },
+    })
+
+    const masked = JSON.parse(maskSettingsJsonSecrets(raw)) as { env: Record<string, string> }
+
+    expect(masked.env.ANTHROPIC_API_KEY).toBe('PROXY_MANAGED')
+    expect(masked.env.ANTHROPIC_AUTH_TOKEN).toBe('proxy-managed')
+    expect(masked.env.OTHER_VALUE).toBe('visible')
+  })
+
   it('restores masked Anthropic API key env vars from their previous field values', () => {
     const previousRaw = JSON.stringify({
       env: {
diff --git a/desktop/src/lib/providerSettingsJson.ts b/desktop/src/lib/providerSettingsJson.ts
index 78bd34df..486908a2 100644
--- a/desktop/src/lib/providerSettingsJson.ts
+++ b/desktop/src/lib/providerSettingsJson.ts
@@ -1,6 +1,7 @@
 export const API_KEY_JSON_PLACEHOLDER = '••••••••'
 
 const API_KEY_JSON_KEYS = ['ANTHROPIC_API_KEY', 'ANTHROPIC_AUTH_TOKEN'] as const
+const PROXY_MANAGED_PLACEHOLDERS = new Set(['proxy-managed', 'proxy_managed'])
 
 const PROVIDER_SETTINGS_JSON_ENV_KEYS = new Set([
   'ANTHROPIC_BASE_URL',
@@ -41,12 +42,13 @@ function getEnvRecord(raw: string): Record<string, unknown> | null {
 }
 
 function isSecretDisplayValue(value: unknown): value is string {
+  const normalized = typeof value === 'string' ? value.trim().toLowerCase() : ''
   return (
     typeof value === 'string' &&
     value.trim() !== '' &&
     value !== API_KEY_JSON_PLACEHOLDER &&
     value !== '(your API key)' &&
-    value !== 'proxy-managed'
+    !PROXY_MANAGED_PLACEHOLDERS.has(normalized)
   )
 }
 
diff --git a/desktop/src/pages/Settings.tsx b/desktop/src/pages/Settings.tsx
index 241b8f85..cfdc963a 100644
--- a/desktop/src/pages/Settings.tsx
+++ b/desktop/src/pages/Settings.tsx
@@ -928,6 +928,27 @@ function normalizeModelMapping(models: ModelMapping): ModelMapping {
   }
 }
 
+function readSettingsEnvString(env: Record<string, unknown>, key: string): string | undefined {
+  const value = env[key]
+  if (typeof value !== 'string') return undefined
+  const trimmed = value.trim()
+  return trimmed || undefined
+}
+
+function readModelMappingFromSettingsEnv(env: Record<string, unknown>): Partial<ModelMapping> {
+  const haiku = readSettingsEnvString(env, 'ANTHROPIC_DEFAULT_HAIKU_MODEL')
+  const sonnet = readSettingsEnvString(env, 'ANTHROPIC_DEFAULT_SONNET_MODEL')
+  const opus = readSettingsEnvString(env, 'ANTHROPIC_DEFAULT_OPUS_MODEL')
+  const main = readSettingsEnvString(env, 'ANTHROPIC_MODEL') ?? sonnet ?? haiku ?? opus
+
+  return {
+    ...(main ? { main } : {}),
+    ...(haiku ? { haiku } : {}),
+    ...(sonnet ? { sonnet } : {}),
+    ...(opus ? { opus } : {}),
+  }
+}
+
 function applyToolSearchEnv(
   env: Record<string, unknown>,
   apiFormat: ApiFormat,
@@ -1854,11 +1875,7 @@ function ProviderFormModal({ open, onClose, mode, provider, presets }: ProviderF
                       parsedContextWindows = {}
                     }
                   }
-                  const newModels: Partial<ModelMapping> = {}
-                  if (env.ANTHROPIC_MODEL) newModels.main = env.ANTHROPIC_MODEL
-                  if (env.ANTHROPIC_DEFAULT_HAIKU_MODEL) newModels.haiku = env.ANTHROPIC_DEFAULT_HAIKU_MODEL
-                  if (env.ANTHROPIC_DEFAULT_SONNET_MODEL) newModels.sonnet = env.ANTHROPIC_DEFAULT_SONNET_MODEL
-                  if (env.ANTHROPIC_DEFAULT_OPUS_MODEL) newModels.opus = env.ANTHROPIC_DEFAULT_OPUS_MODEL
+                  const newModels = readModelMappingFromSettingsEnv(env)
                   if (Object.keys(newModels).length > 0) {
                     setModels((prev) => {
                       const mergedModels = { ...prev, ...newModels }