Update utils.py

utils.py

@@ -12,9 +12,9 @@ import os
 def split_with_source(text, source):
     splitter = CharacterTextSplitter(
         separator = "\n",
-        chunk_size = 256,
+        chunk_size = 1024,
         chunk_overlap  = 0,
-        length_function = len,
+        length_function = 512,
         add_start_index = True,
     )
     documents = splitter.create_documents([text])