Update generation_config.json

generation_config.json

@@ -5,5 +5,6 @@
   "eos_token_id": 3,
   "forced_eos_token_id": 3,
   "pad_token_id": 0,
-  "transformers_version": "4.38.2"
-}
+  "transformers_version": "4.38.2",
+  "max_new_tokens": 128
+}