Update app.py

app.py

@@ -81,8 +81,8 @@ all_splits = text_splitter.split_documents(data)
 vectorstore = Chroma.from_documents(documents=all_splits, embedding=OpenAIEmbeddings())
 
 # Chat Model
-# model = 'gpt-3.5-turbo'
-model = 'gpt-4'
+model = 'gpt-3.5-turbo'
+# model = 'gpt-4'
 
 llm = ChatOpenAI(model=model, temperature=0)
 
@@ -154,7 +154,7 @@ with gr.Blocks() as demo:
          fn= predict, inputs=[msg, chatbot], outputs=[msg, chatbot],
           concurrency_limit = 100).then(text_fn)
     
-    gr.examples=([["What are the main topics?"],["Summarise the lesson"],["Explain this simply"],
+    gr.Examples=([["What are the main topics?"],["Summarise the lesson"],["Explain this simply"],
 					  ["Suggest a topic"],["Tell me more about that"],
 					  ["Can I have a reference to read more?"],["Please provide citations."]],
                  msg)