Update app.py

app.py

@@ -18,7 +18,7 @@ prompt = PromptTemplate(
 memory = ConversationBufferMemory(memory_key="chat_history")
 
 llm_chain = LLMChain(
-    llm=ChatOpenAI(temperature='0.5', model_name=""gpt-4o-mini"),
+    llm=ChatOpenAI(temperature='0.5', model_name="gpt-4o-mini"),
     prompt=prompt,
     verbose=True,
     memory=memory,