diff --git a/README.md b/README.md
index b147b2f54..2839bd621 100644
--- a/README.md
+++ b/README.md
@@ -43,7 +43,7 @@ Aider now supports a [unified diff editing format, which reduces GPT-4 Turbo's "
 To use it, run aider like this:
 
 ```
-aider --4-turbo
+aider --4turbo
 ```
 
 ## Getting started
diff --git a/aider/main.py b/aider/main.py
index 086fbaccd..be7c51a47 100644
--- a/aider/main.py
+++ b/aider/main.py
@@ -160,6 +160,8 @@ def main(argv=None, input=None, output=None, force_git_root=None):
     default_4_turbo_model = models.GPT4_1106_PREVIEW
     core_group.add_argument(
         "--4-turbo",
+        "--4turbo",
+        "--4",
         action="store_const",
         dest="model",
         const=default_4_turbo_model.name,