diff --git a/core/sources/popular.py b/core/sources/popular.py
index c26b96c..bb2116b 100644
--- a/core/sources/popular.py
+++ b/core/sources/popular.py
@@ -6,7 +6,7 @@ Curated list of common models with known download URLs.
 
 import os
 import re
-from typing import Any, Dict, List, Optional
+from typing import Any, Dict, List, Optional, Set
 
 from ..log_system import create_module_logger
 
@@ -257,6 +257,16 @@ def generate_aliases(name: str) -> List[str]:
     return sorted(list({a for a in aliases if len(a) > 1}))
 
 
+def _collect_normalized_base_model_tokens(base_models: List[Dict[str, Any]]) -> Set[str]:
+    """Collect normalized names and aliases from the base-model catalog."""
+    normalized_tokens = set()
+    for model in base_models:
+        normalized_tokens.add(normalize_alphanumeric_key(model.get("name", "")))
+        for alias in model.get("aliases", []):
+            normalized_tokens.add(normalize_alphanumeric_key(alias))
+    return normalized_tokens
+
+
 def get_base_models_status(check_remote: bool = False) -> Dict[str, Any]:
     """Return local base-models metadata and optionally compare with CivitAI."""
     local_data = _read_base_models_file()
@@ -281,11 +291,7 @@ def get_base_models_status(check_remote: bool = False) -> Dict[str, Any]:
                 remote_models = enums.get("BaseModel", [])
 
                 # Check if there are new models by comparing normalized names and aliases
-                all_existing_normalized = set()
-                for m in base_models:
-                    all_existing_normalized.add(normalize_alphanumeric_key(m.get("name", "")))
-                    for alias in m.get("aliases", []):
-                        all_existing_normalized.add(normalize_alphanumeric_key(alias))
+                all_existing_normalized = _collect_normalized_base_model_tokens(base_models)
 
                 new_models_found = False
                 for remote_name in remote_models:
@@ -318,11 +324,7 @@ def update_base_models_from_remote() -> Dict[str, Any]:
     base_models = local_data.get("base_models", [])
 
     # 1. Build a set of all normalized aliases currently in base-models.json
-    all_known_normalized = set()
-    for m in base_models:
-        for alias in m.get("aliases", []):
-            all_known_normalized.add(normalize_alphanumeric_key(alias))
-        all_known_normalized.add(normalize_alphanumeric_key(m.get("name", "")))
+    all_known_normalized = _collect_normalized_base_model_tokens(base_models)
 
     updated_models = list(base_models)
     new_added_count = 0
diff --git a/tests/test_refactoring_unification.py b/tests/test_refactoring_unification.py
index 105a974..77c8ff6 100644
--- a/tests/test_refactoring_unification.py
+++ b/tests/test_refactoring_unification.py
@@ -151,6 +151,44 @@ class TestRefactoringUnification(unittest.TestCase):
         self.assertIn("update_available", res)
         mock_get.assert_called_once_with("https://civitai.com/api/v1/enums", params={}, headers=None, timeout=15)
 
+    @patch("core.sources.popular.request_source_json")
+    @patch("core.sources.popular._read_base_models_file")
+    @patch("core.sources.popular._read_base_models_meta")
+    @patch("core.sources.popular.base_models_mgr")
+    @patch("core.sources.popular.reload_databases")
+    def test_base_model_alias_matching_is_consistent_for_status_and_update(
+        self,
+        mock_reload_databases,
+        mock_base_models_mgr,
+        mock_read_meta,
+        mock_read_file,
+        mock_request_source_json,
+    ):
+        from core.sources.popular import get_base_models_status, update_base_models_from_remote
+
+        local_data = {
+            "base_models": [{"name": "Known Model", "aliases": ["Known Alias"]}]
+        }
+        mock_read_file.return_value = local_data
+        mock_read_meta.return_value = {}
+        mock_request_source_json.return_value = {
+            "BaseModel": ["Known Alias", "New Model"]
+        }
+
+        status = get_base_models_status(check_remote=True)
+        self.assertTrue(status["update_available"])
+
+        result = update_base_models_from_remote()
+
+        self.assertEqual(result["new_models_added"], 1)
+        self.assertEqual(result["new_models_added_list"], ["New Model"])
+        saved_data = mock_base_models_mgr.sync_catalog.call_args[0][0]
+        self.assertEqual(
+            [model["name"] for model in saved_data["base_models"]],
+            ["Known Model", "New Model"],
+        )
+        mock_reload_databases.assert_called_once()
+
     @patch("core.sources.popular.base_models_mgr")
     @patch("requests.get")
     def test_update_base_models_from_remote_success(self, mock_get, mock_base_models_mgr):