diff --git a/integration-test/src/test/java/org/apache/iotdb/ainode/it/AINodeConcurrentForecastIT.java b/integration-test/src/test/java/org/apache/iotdb/ainode/it/AINodeConcurrentForecastIT.java
index fe19f991e574..7b465d10051c 100644
--- a/integration-test/src/test/java/org/apache/iotdb/ainode/it/AINodeConcurrentForecastIT.java
+++ b/integration-test/src/test/java/org/apache/iotdb/ainode/it/AINodeConcurrentForecastIT.java
@@ -36,8 +36,9 @@
 import java.sql.Connection;
 import java.sql.SQLException;
 import java.sql.Statement;
+import java.util.Arrays;
+import java.util.List;
 
-import static org.apache.iotdb.ainode.utils.AINodeTestUtils.BUILTIN_LTSM_MAP;
 import static org.apache.iotdb.ainode.utils.AINodeTestUtils.checkModelNotOnSpecifiedDevice;
 import static org.apache.iotdb.ainode.utils.AINodeTestUtils.checkModelOnSpecifiedDevice;
 import static org.apache.iotdb.ainode.utils.AINodeTestUtils.concurrentInference;
@@ -48,6 +49,11 @@ public class AINodeConcurrentForecastIT {
 
   private static final Logger LOGGER = LoggerFactory.getLogger(AINodeConcurrentForecastIT.class);
 
+  private static final List<AINodeTestUtils.FakeModelInfo> MODEL_LIST =
+      Arrays.asList(
+          new AINodeTestUtils.FakeModelInfo("sundial", "sundial", "builtin", "active"),
+          new AINodeTestUtils.FakeModelInfo("timer_xl", "timer", "builtin", "active"));
+
   private static final String FORECAST_TABLE_FUNCTION_SQL_TEMPLATE =
       "SELECT * FROM FORECAST(model_id=>'%s', targets=>(SELECT time,s FROM root.AI) ORDER BY time, output_length=>%d)";
 
@@ -78,7 +84,7 @@ private static void prepareDataForTableModel() throws SQLException {
 
   @Test
   public void concurrentGPUForecastTest() throws SQLException, InterruptedException {
-    for (AINodeTestUtils.FakeModelInfo modelInfo : BUILTIN_LTSM_MAP.values()) {
+    for (AINodeTestUtils.FakeModelInfo modelInfo : MODEL_LIST) {
       concurrentGPUForecastTest(modelInfo);
     }
   }
diff --git a/iotdb-core/ainode/iotdb/ainode/core/model/model_info.py b/iotdb-core/ainode/iotdb/ainode/core/model/model_info.py
index 697b36712759..5d86e7c588f5 100644
--- a/iotdb-core/ainode/iotdb/ainode/core/model/model_info.py
+++ b/iotdb-core/ainode/iotdb/ainode/core/model/model_info.py
@@ -116,6 +116,7 @@ def __repr__(self):
             "AutoConfig": "configuration_timer.TimerConfig",
             "AutoModelForCausalLM": "modeling_timer.TimerForPrediction",
         },
+        _transformers_registered=True,
     ),
     "sundial": ModelInfo(
         model_id="sundial",
@@ -128,5 +129,6 @@ def __repr__(self):
             "AutoConfig": "configuration_sundial.SundialConfig",
             "AutoModelForCausalLM": "modeling_sundial.SundialForPrediction",
         },
+        _transformers_registered=True,
     ),
 }
diff --git a/iotdb-core/ainode/iotdb/ainode/core/model/model_storage.py b/iotdb-core/ainode/iotdb/ainode/core/model/model_storage.py
index a79371d2e791..ee09cfd75bb3 100644
--- a/iotdb-core/ainode/iotdb/ainode/core/model/model_storage.py
+++ b/iotdb-core/ainode/iotdb/ainode/core/model/model_storage.py
@@ -196,9 +196,12 @@ def _callback_model_download_result(self, future, model_id: str):
                     if os.path.exists(config_path):
                         with open(config_path, "r", encoding="utf-8") as f:
                             config = json.load(f)
-                        if model_info.model_type == "":
-                            model_info.model_type = config.get("model_type", "")
-                        model_info.auto_map = config.get("auto_map", None)
+                        model_info.model_type = config.get(
+                            "model_type", model_info.model_type
+                        )
+                        model_info.auto_map = config.get(
+                            "auto_map", model_info.auto_map
+                        )
                     logger.info(
                         f"Model {model_id} downloaded successfully and is ready to use."
                     )