diff --git a/aider/coder.py b/aider/coder.py
index 1b021dadb..22434d18b 100755
--- a/aider/coder.py
+++ b/aider/coder.py
@@ -78,7 +78,7 @@ class Coder:
         else:
             self.console = Console(force_terminal=True, no_color=True)
 
-        main_model = models.get_model(main_model)
+        main_model = models.Model(main_model)
         if not main_model.is_always_available():
             if not self.check_model_availability(main_model):
                 if main_model != models.GPT4:
diff --git a/aider/models.py b/aider/models.py
index d8cdfa2d7..d7815fa0c 100644
--- a/aider/models.py
+++ b/aider/models.py
@@ -13,6 +13,11 @@ class Model:
 
         self.max_context_tokens = tokens * 1024
 
+        if self.is_gpt4() or self.is_gpt35():
+            return
+
+        raise ValueError(f"Unsupported model: {name}")
+
     def is_gpt4(self):
         return self.name.startswith("gpt-4")
 
@@ -26,12 +31,3 @@ class Model:
 GPT4 = Model("gpt-4", 8)
 GPT35 = Model("gpt-3.5-turbo")
 GPT35_16k = Model("gpt-3.5-turbo-16k")
-
-
-def get_model(name):
-    model = Model(name)
-
-    if model.is_gpt4() or model.is_gpt35():
-        return model
-
-    raise ValueError(f"Unsupported model: {name}")