diff --git a/apps/application/flow/step_node/ai_chat_step_node/i_chat_node.py b/apps/application/flow/step_node/ai_chat_step_node/i_chat_node.py
index 15117c0b700..b7dfecf6a2b 100644
--- a/apps/application/flow/step_node/ai_chat_step_node/i_chat_node.py
+++ b/apps/application/flow/step_node/ai_chat_step_node/i_chat_node.py
@@ -38,6 +38,6 @@ def _run(self):
 
     def execute(self, model_id, system, prompt, dialogue_number, history_chat_record, stream, chat_id,
                 chat_record_id,
-                model_params_setting,
+                model_params_setting=None,
                 **kwargs) -> NodeResult:
         pass
diff --git a/apps/application/flow/step_node/ai_chat_step_node/impl/base_chat_node.py b/apps/application/flow/step_node/ai_chat_step_node/impl/base_chat_node.py
index f8ec8a0118d..9b41fb83fed 100644
--- a/apps/application/flow/step_node/ai_chat_step_node/impl/base_chat_node.py
+++ b/apps/application/flow/step_node/ai_chat_step_node/impl/base_chat_node.py
@@ -74,7 +74,7 @@ def get_default_model_params_setting(model_id):
 
 class BaseChatNode(IChatNode):
     def execute(self, model_id, system, prompt, dialogue_number, history_chat_record, stream, chat_id, chat_record_id,
-                model_params_setting,
+                model_params_setting=None,
                 **kwargs) -> NodeResult:
         if model_params_setting is None:
             model_params_setting = get_default_model_params_setting(model_id)
diff --git a/apps/application/flow/step_node/question_node/i_question_node.py b/apps/application/flow/step_node/question_node/i_question_node.py
index 9b8c125621b..054a7ad9e48 100644
--- a/apps/application/flow/step_node/question_node/i_question_node.py
+++ b/apps/application/flow/step_node/question_node/i_question_node.py
@@ -36,6 +36,6 @@ def _run(self):
         return self.execute(**self.node_params_serializer.data, **self.flow_params_serializer.data)
 
     def execute(self, model_id, system, prompt, dialogue_number, history_chat_record, stream, chat_id, chat_record_id,
-                model_params_setting,
+                model_params_setting=None,
                 **kwargs) -> NodeResult:
         pass
diff --git a/apps/application/flow/step_node/question_node/impl/base_question_node.py b/apps/application/flow/step_node/question_node/impl/base_question_node.py
index 33e1c0fe468..b140e24f976 100644
--- a/apps/application/flow/step_node/question_node/impl/base_question_node.py
+++ b/apps/application/flow/step_node/question_node/impl/base_question_node.py
@@ -74,7 +74,7 @@ def get_default_model_params_setting(model_id):
 
 class BaseQuestionNode(IQuestionNode):
     def execute(self, model_id, system, prompt, dialogue_number, history_chat_record, stream, chat_id, chat_record_id,
-                model_params_setting,
+                model_params_setting=None,
                 **kwargs) -> NodeResult:
         if model_params_setting is None:
             model_params_setting = get_default_model_params_setting(model_id)