diff --git a/rdagent/app/data_science/conf.py b/rdagent/app/data_science/conf.py
index a40c8e16..b1560533 100644
--- a/rdagent/app/data_science/conf.py
+++ b/rdagent/app/data_science/conf.py
@@ -140,6 +140,7 @@ class DataScienceBasePropSetting(KaggleBasePropSetting):
 
     model_architecture_suggestion_time_percent: float = 0.75
     allow_longer_timeout: bool = False
+    longer_timeout_by_llm: bool = False
     coder_longer_timeout_multiplier_upper: int = 3
     runner_longer_timeout_multiplier_upper: int = 2
     timeout_increase_stage: float = 0.3
diff --git a/rdagent/scenarios/data_science/scen/__init__.py b/rdagent/scenarios/data_science/scen/__init__.py
index ce1bd58d..b91f3831 100644
--- a/rdagent/scenarios/data_science/scen/__init__.py
+++ b/rdagent/scenarios/data_science/scen/__init__.py
@@ -119,9 +119,17 @@ class DataScienceScen(Scenario):
         )
         self.metric_name = response_json_analysis.get("Metric Name", "custom_metric")
         self.metric_direction_guess = response_json_analysis.get("Metric Direction", True)
-        self.longer_time_limit_required = response_json_analysis.get(
-            "Longer time limit required", False
-        )  # True or False, whether the competition scenario requires a longer time limit to the code.
+        self.longer_time_limit_required = (
+            False
+            if not DS_RD_SETTING.allow_longer_timeout
+            else (
+                response_json_analysis.get("Longer time limit required", False)
+                if DS_RD_SETTING.longer_timeout_by_llm
+                else True
+            )
+        )
+
+        # True or False, whether the competition scenario requires a longer time limit to the code.
 
     def real_debug_timeout(self):
         return (
@@ -130,7 +138,7 @@ class DataScienceScen(Scenario):
                 DS_RD_SETTING.coder_longer_timeout_multiplier_upper,
                 self.timeout_increase_count * DS_RD_SETTING.timeout_increase_stage + 1,
             )
-            if self.longer_time_limit_required and DS_RD_SETTING.allow_longer_timeout
+            if self.longer_time_limit_required
             else DS_RD_SETTING.debug_timeout
         )
 
@@ -144,7 +152,7 @@ class DataScienceScen(Scenario):
                 DS_RD_SETTING.runner_longer_timeout_multiplier_upper,
                 self.timeout_increase_count * DS_RD_SETTING.timeout_increase_stage + 1,
             )
-            if self.longer_time_limit_required and DS_RD_SETTING.allow_longer_timeout
+            if self.longer_time_limit_required
             else DS_RD_SETTING.full_timeout
         )