diff --git a/app/src/main/java/com/crossbowffs/quotelock/app/configs/openai/OpenAIConfigsViewModel.kt b/app/src/main/java/com/crossbowffs/quotelock/app/configs/openai/OpenAIConfigsViewModel.kt
index b01ec39..d4db2c7 100644
--- a/app/src/main/java/com/crossbowffs/quotelock/app/configs/openai/OpenAIConfigsViewModel.kt
+++ b/app/src/main/java/com/crossbowffs/quotelock/app/configs/openai/OpenAIConfigsViewModel.kt
@@ -101,23 +101,33 @@ class OpenAIConfigsViewModel @Inject constructor(
             openAIRepository.fetchAccountInfo()
         }.onFailure {
             Xlog.e(TAG, "Failed to validate API", it)
-            when (it) {
-                is OpenAIException.RegionNotSupportedException -> {
-                    _uiEvent.emit(SnackBarEvent(message = AndroidString.StringRes(R.string.module_openai_not_support_region)))
-                }
-
-                is OpenAIException.ApiKeyNotSetException -> {
-                    _uiEvent.emit(SnackBarEvent(message = AndroidString.StringRes(R.string.module_openai_api_key_not_set)))
-                }
-
-                is OpenAIException.ApiKeyInvalidException -> {
-                    _uiEvent.emit(SnackBarEvent(message = AndroidString.StringRes(R.string.module_openai_api_key_invalid)))
-                }
-
-                else -> {
-                    _uiEvent.emit(SnackBarEvent(message = AndroidString.StringRes(R.string.module_openai_api_connect_error)))
-                }
-            }
+            _uiEvent.emit(
+                SnackBarEvent(
+                    message = AndroidString.StringRes(
+                        when (it) {
+                            is OpenAIException.RegionNotSupportedException ->
+                                R.string.module_openai_not_support_region
+
+                            is OpenAIException.ApiKeyNotSetException ->
+                                R.string.module_openai_api_key_not_set
+
+                            is OpenAIException.ApiKeyInvalidException ->
+                                R.string.module_openai_api_key_invalid
+
+                            is OpenAIException.RequestLimitException ->
+                                R.string.module_openai_api_request_limit
+
+                            is OpenAIException.ServerError ->
+                                R.string.module_openai_api_server_error
+
+                            is OpenAIException.EngineOverloadedError ->
+                                R.string.module_openai_api_engine_overloaded
+
+                            else -> R.string.module_openai_api_connect_error
+                        }
+                    )
+                )
+            )
             _uiState.value = _uiState.value.copy(
                 validateResult = AsyncResult.Error.Message(AndroidString.StringText(""))
             )
diff --git a/app/src/main/java/com/crossbowffs/quotelock/data/modules/openai/OpenAIRepository.kt b/app/src/main/java/com/crossbowffs/quotelock/data/modules/openai/OpenAIRepository.kt
index 45286cb..1553c44 100644
--- a/app/src/main/java/com/crossbowffs/quotelock/data/modules/openai/OpenAIRepository.kt
+++ b/app/src/main/java/com/crossbowffs/quotelock/data/modules/openai/OpenAIRepository.kt
@@ -281,13 +281,16 @@ class OpenAIRepository @Inject internal constructor(
         }
         return request(host)
     }.onFailure {
-        when {
-            it is HttpException && it.status == HttpStatusCode.Unauthorized -> {
-                throw OpenAIException.ApiKeyInvalidException
+        when (it) {
+            is HttpException -> throw when (it.status) {
+                HttpStatusCode.Unauthorized -> OpenAIException.ApiKeyInvalidException
+                HttpStatusCode.TooManyRequests -> OpenAIException.RequestLimitException
+                HttpStatusCode.InternalServerError -> OpenAIException.ServerError
+                HttpStatusCode.ServiceUnavailable -> OpenAIException.EngineOverloadedError
+                else -> OpenAIException.ConnectException
             }
 
-            it is OpenAIException -> throw it
-
+            is OpenAIException -> throw it
             else -> throw OpenAIException.ConnectException
         }
     }.getOrNull()
@@ -302,5 +305,8 @@ sealed class OpenAIException : IOException() {
     data class RegionNotSupportedException(val region: String? = null) : OpenAIException()
     object ApiKeyNotSetException : OpenAIException()
     object ApiKeyInvalidException : OpenAIException()
+    object RequestLimitException : OpenAIException()
+    object ServerError : OpenAIException()
+    object EngineOverloadedError : OpenAIException()
     object ConnectException : OpenAIException()
 }
diff --git a/app/src/main/res/values-zh-rCN/strings.xml b/app/src/main/res/values-zh-rCN/strings.xml
index 3692394..b2e8e4f 100644
--- a/app/src/main/res/values-zh-rCN/strings.xml
+++ b/app/src/main/res/values-zh-rCN/strings.xml
@@ -179,6 +179,9 @@
     <string name="module_openai_not_support_region">OpenAI 在您的 IP 所在地区不受支持</string>
     <string name="module_openai_api_key_not_set">OpenAI API key 未设置</string>
     <string name="module_openai_api_key_invalid">OpenAI API Key 无效</string>
+    <string name="module_openai_api_request_limit">达到 OpenAI API 请求限制，请检查您的账户或稍后重试</string>
+    <string name="module_openai_api_server_error">OpenAI 服务错误</string>
+    <string name="module_openai_api_engine_overloaded">OpenAI服务当前超载，请稍后重试</string>
     <string name="module_openai_api_connect_error">OpenAI API 连接错误</string>
     <string name="module_openai_expenditure_tooltips">使用 OpenAI 服务可能会产生一定的费用</string>
     <string name="module_openai_incorrect_content_tooltips">GPT 有时会提供带有错误来源的格言</string>
diff --git a/app/src/main/res/values-zh-rTW/strings.xml b/app/src/main/res/values-zh-rTW/strings.xml
index 641cde3..ee2d6b4 100644
--- a/app/src/main/res/values-zh-rTW/strings.xml
+++ b/app/src/main/res/values-zh-rTW/strings.xml
@@ -154,6 +154,9 @@
     <string name="module_openai_not_support_region">OpenAI 在您的 IP 所在地區不受支持</string>
     <string name="module_openai_api_key_not_set">OpenAI API key 未設置</string>
     <string name="module_openai_api_key_invalid">OpenAI API Key 無效</string>
+    <string name="module_openai_api_request_limit">達到 OpenAI API 請求限制，請檢查您的賬戶或稍後重試</string>
+    <string name="module_openai_api_server_error">OpenAI 服務錯誤</string>
+    <string name="module_openai_api_engine_overloaded">OpenAI服務當前超載，請稍後重試</string>
     <string name="module_openai_api_connect_error">OpenAI API 連接錯誤</string>
     <string name="module_openai_expenditure_tooltips">使用 OpenAI 服務可能會產生一定的費用</string>
     <string name="module_openai_incorrect_content_tooltips">GPT 有時會提供帶有錯誤來源的格言</string>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 9958b96..2980987 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -165,6 +165,9 @@
     <string name="module_openai_not_support_region">OpenAI is not supported in your IP\'s region</string>
     <string name="module_openai_api_key_not_set">OpenAI API key not set</string>
     <string name="module_openai_api_key_invalid">Invalid OpenAI API key</string>
+    <string name="module_openai_api_request_limit">OpenAI API request limit reached, please check your account or try again later</string>
+    <string name="module_openai_api_server_error">OpenAI server error</string>
+    <string name="module_openai_api_engine_overloaded">OpenAI server is currently overloaded, please try again later</string>
     <string name="module_openai_api_connect_error">OpenAI API connect error</string>
     <string name="module_openai_expenditure_tooltips">Using OpenAI provider may potentially result in certain expenditures</string>
     <string name="module_openai_incorrect_content_tooltips">GPT sometimes provides quotes with erroneous sources</string>