diff --git a/src/controlflow/tasks/task.py b/src/controlflow/tasks/task.py
index 5df4991..039b940 100644
--- a/src/controlflow/tasks/task.py
+++ b/src/controlflow/tasks/task.py
@@ -535,21 +535,26 @@ def create_success_tool(self) -> Tool:
         result_schema = None
 
         # if the result_type is a tuple of options, then we want the LLM to provide
-        # a single integer index instead of writing out the entire option
+        # a single integer index instead of writing out the entire option. Therefore
+        # we create a tool that describes a series of options and accepts the index
+        # as a result.
         if isinstance(self.result_type, tuple):
             result_schema = int
+            options = {}
+            serialized_options = {}
             for i, option in enumerate(self.result_type):
+                options[i] = option
                 try:
                     serialized = TypeAdapter(type(option)).dump_python(option)
                 except PydanticSchemaGenerationError:
                     serialized = repr(option)
-                options[i] = serialized
+                serialized_options[i] = serialized
             options_str = "\n\n".join(
-                f"Option {i}: {option}" for i, option in options.items()
+                f"Option {i}: {option}" for i, option in serialized_options.items()
             )
             instructions = f"""
                 Provide a single integer as the result, corresponding to the index
-                of your chosen option. You options are: {options_str}
+                of your chosen option. Your options are: {options_str}
                 """
 
         # otherwise try to load the schema for the result type
diff --git a/tests/tasks/test_tasks.py b/tests/tasks/test_tasks.py
index 40faea6..e3fbaf1 100644
--- a/tests/tasks/test_tasks.py
+++ b/tests/tasks/test_tasks.py
@@ -421,6 +421,26 @@ def test_success_tool_with_list_of_options_requires_int(self):
         with pytest.raises(ValueError):
             tool.run(input=dict(result="good"))
 
+    def test_tuple_of_ints_result(self):
+        task = Task("choose 5", result_type=(4, 5, 6))
+        tool = task.create_success_tool()
+        tool.run(input=dict(result=1))
+        assert task.result == 5
+
+    def test_tuple_of_pydantic_models_result(self):
+        class Person(BaseModel):
+            name: str
+            age: int
+
+        task = Task(
+            "Who is the oldest?",
+            result_type=(Person(name="Alice", age=30), Person(name="Bob", age=35)),
+        )
+        tool = task.create_success_tool()
+        tool.run(input=dict(result=1))
+        assert task.result == Person(name="Bob", age=35)
+        assert isinstance(task.result, Person)
+
 
 class TestRun:
     @pytest.mark.parametrize(