diff --git a/ppdiffusers/deploy/gradio_demo.py b/ppdiffusers/deploy/gradio_demo.py
index 94bae307a..b40b6a3e0 100644
--- a/ppdiffusers/deploy/gradio_demo.py
+++ b/ppdiffusers/deploy/gradio_demo.py
@@ -263,13 +263,13 @@ def parse_arguments():
         choices=["paddle", "paddle_tensorrt"],
         help="The inference runtime backend of unet model and text encoder model.",
     )
-    parser.add_argument("--use_fp16", type=strtobool, default=False, help="Wheter to use FP16 mode")
+    parser.add_argument("--use_fp16", type=strtobool, default=True, help="Wheter to use FP16 mode")
     parser.add_argument("--use_bf16", type=strtobool, default=False, help="Wheter to use BF16 mode")
     parser.add_argument("--device_id", type=int, default=0, help="The selected gpu id.")
     parser.add_argument(
         "--parse_prompt_type",
         type=str,
-        default="raw",
+        default="lpw",
         choices=[
             "raw",
             "lpw",