diff --git a/examples/multi_agent/hiearchical_swarm/hs_stock_team.py b/examples/multi_agent/hiearchical_swarm/hs_stock_team.py
index 898c8ab9..c336469f 100644
--- a/examples/multi_agent/hiearchical_swarm/hs_stock_team.py
+++ b/examples/multi_agent/hiearchical_swarm/hs_stock_team.py
@@ -15,7 +15,7 @@ load_dotenv()
 # Trading Director: Responsible for orchestrating tasks among multiple stock analysts
 # ------------------------------------------------------------------------------
 director_llm = LiteLLM(
-    model_name="gpt-4o",
+    model_name="gpt-4.1",
     response_format=SwarmSpec,
     system_prompt=(
         "You are the Trading Director in charge of coordinating a team of specialized "
@@ -51,7 +51,7 @@ def main():
     # --------------------------------------------------------------------------
     macro_agent = Agent(
         agent_name="Macro-Economic-Analysis-Agent",
-        model_name="gpt-4o",
+        model_name="gpt-4.1",
         max_loops=1,
         interactive=False,
         streaming_on=False,
@@ -81,7 +81,7 @@ def main():
     # --------------------------------------------------------------------------
     sector_agent = Agent(
         agent_name="Sector-Performance-Analysis-Agent",
-        model_name="gpt-4o",
+        model_name="gpt-4.1",
         max_loops=1,
         interactive=False,
         streaming_on=False,
@@ -113,7 +113,7 @@ def main():
     # --------------------------------------------------------------------------
     technical_agent = Agent(
         agent_name="Technical-Analysis-Agent",
-        model_name="gpt-4o",
+        model_name="gpt-4.1",
         max_loops=1,
         interactive=False,
         streaming_on=False,
@@ -145,7 +145,7 @@ def main():
     # --------------------------------------------------------------------------
     risk_agent = Agent(
         agent_name="Risk-Analysis-Agent",
-        model_name="gpt-4o",
+        model_name="gpt-4.1",
         max_loops=1,
         interactive=False,
         streaming_on=False,