Update rag_core.py

rag_core.py

@@ -17,7 +17,7 @@ retrieval_chain = None
 
 def initialize_rag_components():
     global llm
-    llm = ChatOpenAI(model="gemini-2.5-flash", temperature=0.3)
+    llm = ChatOpenAI(model="gpt-3.5-turbo", temperature=0.3)
 
 def scrape_and_process_url(url: str) -> str:
     global vector_store, retrieval_chain