diff --git a/apps/setting/models_provider/impl/openai_model_provider/credential/llm.py b/apps/setting/models_provider/impl/openai_model_provider/credential/llm.py
index 68f12c77d84..3d5d5c90cb6 100644
--- a/apps/setting/models_provider/impl/openai_model_provider/credential/llm.py
+++ b/apps/setting/models_provider/impl/openai_model_provider/credential/llm.py
@@ -18,7 +18,8 @@
 
 
 class OpenAILLMModelParams(BaseForm):
-    temperature = forms.SliderField(TooltipLabel(_('Temperature'), _('Higher values make the output more random, while lower values make it more focused and deterministic')),
+    temperature = forms.SliderField(TooltipLabel(_('Temperature'),
+                                                 _('Higher values make the output more random, while lower values make it more focused and deterministic')),
                                     required=True, default_value=0.7,
                                     _min=0.1,
                                     _max=1.0,
@@ -26,7 +27,8 @@ class OpenAILLMModelParams(BaseForm):
                                     precision=2)
 
     max_tokens = forms.SliderField(
-        TooltipLabel(_('Output the maximum Tokens'), _('Specify the maximum number of tokens that the model can generate')),
+        TooltipLabel(_('Output the maximum Tokens'),
+                     _('Specify the maximum number of tokens that the model can generate')),
         required=True, default_value=800,
         _min=1,
         _max=100000,
@@ -40,7 +42,8 @@ def is_valid(self, model_type: str, model_name, model_credential: Dict[str, obje
                  raise_exception=False):
         model_type_list = provider.get_model_type_list()
         if not any(list(filter(lambda mt: mt.get('value') == model_type, model_type_list))):
-            raise AppApiException(ValidCode.valid_error.value, __('{model_type} Model type is not supported').format(model_type=model_type))
+            raise AppApiException(ValidCode.valid_error.value,
+                                  __('{model_type} Model type is not supported').format(model_type=model_type))
 
         for key in ['api_base', 'api_key']:
             if key not in model_credential:
@@ -51,12 +54,14 @@ def is_valid(self, model_type: str, model_name, model_credential: Dict[str, obje
         try:
 
             model = provider.get_model(model_type, model_name, model_credential, **model_params)
-            model.invoke([HumanMessage(content=_('Hello'))])
+            model.invoke([HumanMessage(content=__('Hello'))])
         except Exception as e:
             if isinstance(e, AppApiException):
                 raise e
             if raise_exception:
-                raise AppApiException(ValidCode.valid_error.value, __('Verification failed, please check whether the parameters are correct: {error}').format(error=str(e)))
+                raise AppApiException(ValidCode.valid_error.value,
+                                      __('Verification failed, please check whether the parameters are correct: {error}').format(
+                                          error=str(e)))
             else:
                 return False
         return True