diff --git a/web_demo.py b/web_demo.py
index 3bf485b..2a9c29b 100755
--- a/web_demo.py
+++ b/web_demo.py
@@ -10,14 +10,37 @@ from transformers.generation import GenerationConfig
 from argparse import ArgumentParser
 import sys
 
+print("Call args:" + str(sys.argv))
+parser = ArgumentParser()
+parser.add_argument("--share", action="store_true", default=False)
+parser.add_argument("--inbrowser", action="store_true", default=False)
+parser.add_argument("--server_port", type=int, default=80)
+parser.add_argument("--server_name", type=str, default="0.0.0.0")
+parser.add_argument("--exit", action="store_true", default=False)
+parser.add_argument("--model_revision", type=str, default="")
+args = parser.parse_args(sys.argv[1:])
+print("Args:" + str(args))
+
 tokenizer = AutoTokenizer.from_pretrained("Qwen/Qwen-7B-Chat", trust_remote_code=True, resume_download=True)
 
-model = AutoModelForCausalLM.from_pretrained("Qwen/Qwen-7B-Chat", device_map="auto", trust_remote_code=True, resume_download=True).eval()
+model = AutoModelForCausalLM.from_pretrained(
+    "Qwen/Qwen-7B-Chat",
+    device_map="auto",
+    trust_remote_code=True,
+    resume_download=True,
+    **{"revision": args.model_revision} if args.model_revision is not None and args.model_revision != "" else {},
+).eval()
 
 model.generation_config = GenerationConfig.from_pretrained("Qwen/Qwen-7B-Chat", trust_remote_code=True, resume_download=True)
 
-if len(sys.argv) > 1 and sys.argv[1] == "--exit":
-    sys.exit(0)
+if 'exit' in args:
+    if args.exit:
+        sys.exit(0)
+    else:
+        del args.exit
+
+if 'model_revision' in args:
+    del args.model_revision
 
 
 def postprocess(self, y):
@@ -112,17 +135,6 @@ with gr.Blocks() as demo:
     emptyBtn.click(reset_state, outputs=[chatbot], show_progress=True)
 
 if len(sys.argv) > 1:
-
-    print("Call args:" + str(sys.argv))
-    parser = ArgumentParser()
-    parser.add_argument("--share", action="store_true", default=False)
-    parser.add_argument("--inbrowser", action="store_true", default=False)
-    parser.add_argument("--server_port", type=int, default=80)
-    parser.add_argument("--server_name", type=str, default="0.0.0.0")
-    args = parser.parse_args(sys.argv[1:])
-    print("Args:" + str(args))
-
-    print("Args:" + str(args))
-    demo.queue().launch(args)
+    demo.queue().launch(**vars(args))
 else:
     demo.queue().launch()