diff --git a/examples/foundational/19-openai-realtime-beta.py b/examples/foundational/19-openai-realtime-beta.py
index 8796e0141..8027b0669 100644
--- a/examples/foundational/19-openai-realtime-beta.py
+++ b/examples/foundational/19-openai-realtime-beta.py
@@ -114,6 +114,7 @@ Remember, your responses should be short. Just one or two sentences, usually."""
 
         llm = OpenAIRealtimeBetaLLMService(
             api_key=os.getenv("OPENAI_API_KEY"),
+            model="gpt-4o-realtime-preview-latest",
             session_properties=session_properties,
             start_audio_paused=False,
         )