Update app.py

app.py

@@ -71,7 +71,7 @@ def get_pdf_text(pdf_docs):
 def get_text_chunks(text):
     text_splitter = CharacterTextSplitter(
         separator='\n',
-        chunk_size = 400,
+        chunk_size = 500,
         chunk_overlap = 200,
         length_function = len
     )
@@ -86,7 +86,7 @@ def get_vectorstore(text_chunks):
 def get_conversation_chain(vectorstore):
     llm = HuggingFaceHub(
         repo_id = 'google/flan-t5-xxl',
-        model_kwargs = {"temperature":0.5, "max_length":512}
+        model_kwargs = {"temperature":0.5, "max_length":256}
     )
     memory = ConversationBufferMemory(
         memory_key='chat_history',