Update app.py

app.py

@@ -471,7 +471,7 @@ def get_response_from_excel(query, model, context, num_calls=3, temperature=0.2)
 
         logging.info("Finished generating response for Excel data")
 
-def truncate_context(context, max_chars=20000):
+def truncate_context(context, max_chars=16000):
     """Truncate context to a maximum number of characters."""
     if len(context) <= max_chars:
         return context