pytorch
diff --git a/‎test/dynamo_expected_failures/CPython313-test_set-TestSet.test_init b/‎test/dynamo_expected_failures/CPython313-test_set-TestSet.test_init
diff --git a/‎torch/_dynamo/variables/builtin.py
+28-18 b/‎torch/_dynamo/variables/builtin.py
+28-18
@@ -1687,7 +1687,16 @@ def call_set(self, tx: "InstructionTranslator", *args, **kwargs):
         assert not kwargs
         if not args:
             return SetVariable([], mutation_type=ValueMutationNew())
-        assert len(args) == 1
+        if len(args) != 1:
+            raise_observed_exception(
+                TypeError,
+                tx,
+                args=[
+                    ConstantVariable.create(
+                        f"set() takes 1 positional argument but {len(args)} were given"
+                    )
+                ],
+            )
         arg = args[0]
         if isinstance(arg, variables.SetVariable):
             return arg.clone(mutation_type=ValueMutationNew())
@@ -1703,35 +1712,36 @@ def call_set(self, tx: "InstructionTranslator", *args, **kwargs):
                 if isinstance(out, SetVariable):
                     return out
                 return BuiltinVariable(set).call_set(tx, out)
-        unimplemented_v2(
-            gb_type="failed to construct builtin set()",
-            context=f"set(): {args} {kwargs}",
-            explanation="Unable to call builtin set() with provided arguments.",
-            hints=[
-                *graph_break_hints.USER_ERROR,
-                *graph_break_hints.SUPPORTABLE,
-            ],
+        raise_observed_exception(
+            TypeError,
+            tx,
+            args=[ConstantVariable.create("failed to construct builtin set()")],
         )
 
     def call_frozenset(self, tx: "InstructionTranslator", *args, **kwargs):
         assert not kwargs
         if not args:
             return FrozensetVariable([])
-        assert len(args) == 1
+        if len(args) != 1:
+            raise_observed_exception(
+                TypeError,
+                tx,
+                args=[
+                    ConstantVariable.create(
+                        f"frozenset() takes 1 positional argument but {len(args)} were given"
+                    )
+                ],
+            )
         arg = args[0]
         if isinstance(arg, variables.FrozensetVariable):
             return FrozensetVariable([x.vt for x in arg.set_items])
         elif arg.has_unpack_var_sequence(tx):
             items = arg.unpack_var_sequence(tx)
             return FrozensetVariable(items)
-        unimplemented_v2(
-            gb_type="failed to construct builtin frozenset()",
-            context=f"frozenset(): {args} {kwargs}",
-            explanation="Unable to call builtin frozenset() with provided arguments.",
-            hints=[
-                *graph_break_hints.USER_ERROR,
-                *graph_break_hints.SUPPORTABLE,
-            ],
+        raise_observed_exception(
+            TypeError,
+            tx,
+            args=[ConstantVariable.create("failed to construct builtin frozenset()")],
         )
 
     def call_zip(self, tx: "InstructionTranslator", *args, **kwargs):