updated prompt

app.py

@@ -19,6 +19,8 @@ from llama_parse import LlamaParse
 
 from streamlit_pdf_viewer import pdf_viewer
 
+MAX_OUTPUT_TOKENS = 2048  
+
 def main():
     with st.sidebar:
         st.title('Document Summarization and QA System')
@@ -67,7 +69,11 @@ def main():
             step=0.05, 
         )
 
-        max_output_tokens = 2048  
+        # Enter Parsing API Key
+        parse_key = st.text_input(
+            "Enter your LlamaParse API Key",
+            value=None,
+        )
 
         # Enter LLM API Key
         llm_key = st.text_input(
@@ -84,21 +90,15 @@ def main():
                 Settings.llm = OpenAI(
                     model=llm_name, 
                     temperature=temperature,
-                    max_tokens=max_output_tokens
+                    max_tokens=MAX_OUTPUT_TOKENS
                 )
                 Settings.tokenizer = tiktoken.encoding_for_model(llm_name).encode
-                Settings.num_output = max_output_tokens
+                Settings.num_output = MAX_OUTPUT_TOKENS
                 Settings.context_window = 4096 # max possible
                 Settings.embed_model = OpenAIEmbedding()
             elif provider == 'huggingface':
                 os.environ['HFTOKEN'] = str(llm_key)
 
-        # Enter Parsing API Key
-        parse_key = st.text_input(
-            "Enter your LlamaParse API Key",
-            value=None,
-        )
-
         uploaded_file = st.file_uploader(
             "Choose a PDF file to upload", 
             type=['pdf'],