diff --git a/gptc/classifier.py b/gptc/classifier.py
index 2b655b3..4929b0c 100755
--- a/gptc/classifier.py
+++ b/gptc/classifier.py
@@ -20,26 +20,9 @@ class Classifier:
     """
 
     def __init__(self, model):
-        try:
-            model_version = model["__version__"]
-        except:
-            model_version = 1
-
-        if model_version == 3:
-            self.model = model
-        else:
-            # The model is an unsupported version
-            try:
-                raw_model = model["__raw__"]
-            except:
-                raise gptc.exceptions.UnsupportedModelError(
-                    "this model is unsupported and does not contain a raw model for recompiling"
-                )
-
-            warnings.warn(
-                "model needed to be recompiled on-the-fly; please re-compile it and use the new compiled model in the future"
-            )
-            self.model = gptc.compiler.compile(raw_model)
+        if model.get("__version__", 0) != 3:
+            raise gptc.exceptions.UnsupportedModelError(f"unsupported model version")
+        self.model = model
 
     def confidence(self, text):
         """Classify text with confidence.
diff --git a/gptc/compiler.py b/gptc/compiler.py
index e4fe87b..83f6b99 100755
--- a/gptc/compiler.py
+++ b/gptc/compiler.py
@@ -60,6 +60,5 @@ def compile(raw_model):
     model["__names__"] = names
 
     model["__version__"] = 3
-    model["__raw__"] = raw_model
 
     return model