Replace LiteLLMModel with OpenAIServerModel in BasicAgent initialization

agent.py

@@ -7,7 +7,7 @@ from typing import Any
 from smolagents import (
     CodeAgent,
     DuckDuckGoSearchTool,
-    LiteLLMModel,
+    OpenAIServerModel,
     VisitWebpageTool,
     WikipediaSearchTool,
     tool,
@@ -110,10 +110,10 @@ def wikipedia_page(title: str) -> str:
 
 class BasicAgent:
     def __init__(self):
-        model = LiteLLMModel(
-            model_id="gpt-4o-mini",
+        model = OpenAIServerModel(
+            model_id="gpt-4.1",
             api_key=os.getenv("OPENAI_API_KEY"),
-            temperature=0.0
+            temperature=0.0,
         )
         search = DuckDuckGoSearchTool(max_results=5)
         # speech_to_text = SpeechToTextTool()