Update app.py

app.py

@@ -4,6 +4,8 @@ import requests
 import inspect
 import pandas as pd
 from smolagents import CodeAgent, DuckDuckGoSearchTool, HfApiModel, OpenAIServerModel
+from llama_index.core import VectorStoreIndex, SimpleDirectoryReader, ServiceContext
+from llama_index.llms.openai import OpenAI
 
 
 # (Keep Constants as is)
@@ -18,7 +20,11 @@ class BasicAgent:
         print("Initializing LlamaIndex-based agent...")
     
         # Imposta l'LLM (puoi usare anche altri modelli via HuggingFace o OpenRouter)
-        self.llm = HfApiModel()
+        self.llm = OpenAI(
+            model="gpt-4o-mini",
+            temperature=0,
+            api_key=openai_api_key
+        )
     
         #OpenAI(model="gpt-3.5-turbo", temperature=0)