diff --git a/openpilot/sunnypilot/models/default_model.py b/openpilot/sunnypilot/models/default_model.py
index 62b6831402..ad4e8b6532 100755
--- a/openpilot/sunnypilot/models/default_model.py
+++ b/openpilot/sunnypilot/models/default_model.py
@@ -4,7 +4,7 @@ import hashlib
 
 from openpilot.common.basedir import BASEDIR
 from openpilot.sunnypilot import get_file_hash
-from openpilot.sunnypilot.models.model_name import DEFAULT_MODEL
+from openpilot.sunnypilot.models.model_name import DEFAULT_MODEL, DEFAULT_BIG_MODEL
 
 DEFAULT_MODEL_NAME_PATH = os.path.join(BASEDIR, "openpilot", "sunnypilot", "models", "model_name.py")
 MODEL_HASH_PATH = os.path.join(BASEDIR, "openpilot", "sunnypilot", "models", "tests", "model_hash")
@@ -13,7 +13,6 @@ SUPERCOMBO_ONNX_PATH = os.path.join(BASEDIR, "openpilot", "selfdrive", "modeld",
 
 def update_model_hash():
   supercombo_hash = get_file_hash(SUPERCOMBO_ONNX_PATH)
-
   combined_hash = hashlib.sha256(supercombo_hash.encode()).hexdigest()
 
   with open(MODEL_HASH_PATH, "w") as f:
@@ -22,40 +21,28 @@ def update_model_hash():
   print(f"Generated and updated new combined model hash to {MODEL_HASH_PATH}")
 
 
-def get_current_default_model_name():
-  print("[GET DEFAULT MODEL NAME]")
-  name = DEFAULT_MODEL
-  print(f'Current default model name: "{name}"')
-
-  return name
-
-
-def update_default_model_name(name: str):
-  print("[CHANGE DEFAULT MODEL NAME]")
+def update_default_model_names(default_model_name: str, default_big_model_name: str):
+  print("[CHANGE DEFAULT MODEL NAMES]")
   with open(DEFAULT_MODEL_NAME_PATH, "w") as f:
-    f.write(f'DEFAULT_MODEL = "{name}"\n')
-  print(f'New default model name: "{name}"')
+    f.write(f'DEFAULT_MODEL = "{default_model_name}"\n')
+    f.write(f'DEFAULT_BIG_MODEL = "{default_big_model_name}"\n')
+
+  print(f'New default small model name: "{default_model_name}"')
+  print(f'New default big model name: "{default_big_model_name}"')
   print("[DONE]")
 
 
 if __name__ == "__main__":
-  parser = argparse.ArgumentParser(description="Update default model name and hash")
-  parser.add_argument("--new_name", type=str, help="New default model name")
+  parser = argparse.ArgumentParser(description="Update default model names and hash")
+  parser.add_argument("--new_small_model_name", type=str, help="New default small model name")
+  parser.add_argument("--new_big_model_name", type=str, help="New default big model name")
   args = parser.parse_args()
 
-  if not args.new_name:
-    print("Warning: No new default model name provided. Use --new_name to specify")
-    print("Default model name and hash will not be updated! (aborted)")
-    exit(0)
+  if args.new_small_model_name is None and args.new_big_model_name is None:
+    new_name = input(f'Enter new default small model name (current: "{DEFAULT_MODEL}", leave empty to keep): ').strip()
+    new_big_model_name = input(f'Enter new default big model name (current: "{DEFAULT_BIG_MODEL}", leave empty to keep): ').strip()
+  else:
+    new_name, new_big_model_name = args.new_small_model_name, args.new_big_model_name
 
-  current_name = get_current_default_model_name()
-  new_name = args.new_name
-  if current_name == new_name:
-    print(f'Proposed default model name: "{new_name}"')
-    confirm = input("Proposed default model name is the same as the current default model name. Confirm? (y/n): ").upper().strip()
-    if confirm != "Y":
-      print("Default model name and hash will not be updated! (aborted)")
-      exit(0)
-
-  update_default_model_name(new_name)
+  update_default_model_names(new_name or DEFAULT_MODEL, new_big_model_name or DEFAULT_BIG_MODEL)
   update_model_hash()
diff --git a/openpilot/sunnypilot/models/model_name.py b/openpilot/sunnypilot/models/model_name.py
index 02a6c2bac2..374e8473df 100644
--- a/openpilot/sunnypilot/models/model_name.py
+++ b/openpilot/sunnypilot/models/model_name.py
@@ -1 +1,2 @@
 DEFAULT_MODEL = "CD210"
+DEFAULT_BIG_MODEL = "Lebowski"
diff --git a/openpilot/sunnypilot/models/tests/test_default_model.py b/openpilot/sunnypilot/models/tests/test_default_model.py
index 450237e0e9..b72c2b4c89 100644
--- a/openpilot/sunnypilot/models/tests/test_default_model.py
+++ b/openpilot/sunnypilot/models/tests/test_default_model.py
@@ -20,4 +20,4 @@ class TestDefaultModel(OpenpilotTestCase):
     with open(MODEL_HASH_PATH) as f:
       current_hash = f.read().strip()
 
-    assert combined_hash == current_hash, "Run sunnypilot/models/default_model.py to update the default model name and hash"
+    assert combined_hash == current_hash, "Run openpilot/sunnypilot/models/default_model.py to update the default model name and hash"