Update app.py

app.py

@@ -11,11 +11,11 @@ _ = load_dotenv(find_dotenv())
 RAG_BATCH = False # document loading, splitting, storage
 
 config = {
-    "chunk_overlap": 150,  # document splitting
-    "chunk_size": 1500,    # document splitting
-    "k": 3,                # document retrieval
-    "model_name": "gpt-4", # llm
-    "temperature": 0,      # llm
+    "chunk_overlap": 150,       # document splitting
+    "chunk_size": 1500,         # document splitting
+    "k": 3,                     # document retrieval
+    "model_name": "gpt-4-0613", # llm
+    "temperature": 0,           # llm
 }
 
 RAG_OFF     = "Off"