diff --git a/tests/utilities/test_planning_handler.py b/tests/utilities/test_planning_handler.py
index d1bee0f50..502398fab 100644
--- a/tests/utilities/test_planning_handler.py
+++ b/tests/utilities/test_planning_handler.py
@@ -1,6 +1,7 @@
 from unittest.mock import patch
 
 import pytest
+from langchain_openai import ChatOpenAI
 
 from crewai.agent import Agent
 from crewai.task import Task
@@ -30,6 +31,18 @@ class TestCrewPlanner:
         ]
         return CrewPlanner(tasks, None)
 
+    @pytest.fixture
+    def crew_planner_different_llm(self):
+        tasks = [
+            Task(
+                description="Task 1",
+                expected_output="Output 1",
+                agent=Agent(role="Agent 1", goal="Goal 1", backstory="Backstory 1"),
+            )
+        ]
+        planning_agent_llm = ChatOpenAI(model="gpt-3.5-turbo")
+        return CrewPlanner(tasks, planning_agent_llm)
+
     def test_handle_crew_planning(self, crew_planner):
         with patch.object(Task, "execute_sync") as execute:
             execute.return_value = TaskOutput(
@@ -40,7 +53,7 @@ class TestCrewPlanner:
                 ),
             )
             result = crew_planner._handle_crew_planning()
-
+            assert crew_planner.planning_agent_llm.model_name == "gpt-4o-mini"
             assert isinstance(result, PlannerTaskPydanticOutput)
             assert len(result.list_of_plans_per_task) == len(crew_planner.tasks)
             execute.assert_called_once()
@@ -72,3 +85,22 @@ class TestCrewPlanner:
         assert isinstance(tasks_summary, str)
         assert tasks_summary.startswith("\n                Task Number 1 - Task 1")
         assert tasks_summary.endswith('"agent_tools": []\n                ')
+
+    def test_handle_crew_planning_different_llm(self, crew_planner_different_llm):
+        with patch.object(Task, "execute_sync") as execute:
+            execute.return_value = TaskOutput(
+                description="Description",
+                agent="agent",
+                pydantic=PlannerTaskPydanticOutput(list_of_plans_per_task=["Plan 1"]),
+            )
+            result = crew_planner_different_llm._handle_crew_planning()
+
+            assert (
+                crew_planner_different_llm.planning_agent_llm.model_name
+                == "gpt-3.5-turbo"
+            )
+            assert isinstance(result, PlannerTaskPydanticOutput)
+            assert len(result.list_of_plans_per_task) == len(
+                crew_planner_different_llm.tasks
+            )
+            execute.assert_called_once()