update

app.py

@@ -63,7 +63,7 @@ def pdf_changes(pdf_doc):
         retriever = db.as_retriever()
         global qa
         qa = ConversationalRetrievalChain.from_llm(
-            llm=OpenAI(temperature=0.2, model_name="gpt-3.5-turbo", max_tokens=-1, n=2),
+            llm=OpenAI(temperature=0.2, model_name="gpt-3.5-turbo-16k", max_tokens=-1, n=2),
             retriever=retriever,
             return_source_documents=False
         )
@@ -136,7 +136,7 @@ title = """
     <h1>CauseWriter Chat with PDF • OpenAI</h1>
     <p style="text-align: center;">Upload a .PDF from your computer, click the "Load PDF to LangChain" button, <br />
     when everything is ready, you can start asking questions about the pdf. <br />
-    This version is set to store chat history and uses OpenAI as LLM.</p>
+    This version is set to erase chat history and uses OpenAI as LLM.</p>
 </div>
 """