diff --git a/src/gpt_review/_git.py b/src/gpt_review/_git.py
index 957f43de..97a42478 100644
--- a/src/gpt_review/_git.py
+++ b/src/gpt_review/_git.py
@@ -4,6 +4,7 @@
 from typing import Dict
 
 from knack import CLICommandsLoader
+from knack.arguments import ArgumentsContext
 from knack.commands import CommandGroup
 from git.repo import Repo
 
@@ -39,10 +40,14 @@ def _diff() -> str:
     return Repo.init(_find_git_dir()).git.diff(None, cached=True)
 
 
-def _commit_message() -> str:
+def _commit_message(gpt4: bool = False, large: bool = False) -> str:
     """
     Create a commit message with GPT.
 
+    Args:
+        gpt4 (bool, optional): Whether to use gpt-4. Defaults to False.
+        large (bool, optional): Whether to use gpt-4-32k. Defaults to False.
+
     Returns:
         response (str): The response from GPT-4.
     """
@@ -53,17 +58,12 @@ def _commit_message() -> str:
     diff = _diff()
     logging.debug("Diff: %s", diff)
 
-    return _request_goal(diff, goal)
+    return _request_goal(diff, goal, fast=not gpt4, large=large)
 
 
-def _commit() -> Dict[str, str]:
-    """
-    Run git commit with a commit message generated by GPT.
-
-    Returns:
-        response (dict): The response from GPT-4.
-    """
-    message = _commit_message()
+def _commit(gpt4: bool = False, large: bool = False) -> Dict[str, str]:
+    """Run git commit with a commit message generated by GPT."""
+    message = _commit_message(gpt4=gpt4, large=large)
     logging.debug("Commit Message: %s", message)
     repo = Repo.init(_find_git_dir())
     commit = repo.git.commit(message=message)
@@ -75,5 +75,21 @@ class GitCommandGroup(GPTCommandGroup):
 
     @staticmethod
     def load_command_table(loader: CLICommandsLoader) -> None:
-        with CommandGroup(loader, "git", "gpt_review._git#{}") as group:
+        with CommandGroup(loader, "git", "gpt_review._git#{}", is_preview=True) as group:
             group.command("commit", "_commit", is_preview=True)
+
+    @staticmethod
+    def load_arguments(loader: CLICommandsLoader) -> None:
+        with ArgumentsContext(loader, "git commit") as args:
+            args.argument(
+                "gpt4",
+                help="Use gpt-4 for generating commit messages instead of gpt-35-turbo.",
+                default=False,
+                action="store_true",
+            )
+            args.argument(
+                "large",
+                help="Use gpt-4-32k model for generating commit messages.",
+                default=False,
+                action="store_true",
+            )
diff --git a/tests/test_gpt_cli.py b/tests/test_gpt_cli.py
index e404d2d3..ea68bc46 100644
--- a/tests/test_gpt_cli.py
+++ b/tests/test_gpt_cli.py
@@ -105,8 +105,6 @@ class CLICase:
     CLICase(
         "ask --files src/gpt_review/main.py --files src/gpt_review/main.py what programming language is this code written in?"
     ),
-    CLICase("git commit --help"),
-    # CLICase("git commit"),
     CLICase("github review --help"),
     CLICase("github review"),
     CLICase(
@@ -115,13 +113,20 @@ class CLICase:
     CLICase("ask --fast -f src/gpt_review/__init__.py what programming language is this code written in?"),
 ]
 
+GIT_COMMANDS = [
+    CLICase("git commit --help"),
+    # CLICase("git commit"),
+    # CLICase("git commit --large"),
+    # CLICase("git commit --gpt4"),
+]
+
 REVIEW_COMMANDS = [
     CLICase("review --help"),
     CLICase("review diff --help"),
     CLICase("review diff --diff tests/mock.diff --config tests/config.summary.test.yml"),
 ]
 
-ARGS = ROOT_COMMANDS + ASK_COMMANDS + REVIEW_COMMANDS
+ARGS = ROOT_COMMANDS + ASK_COMMANDS + GIT_COMMANDS + REVIEW_COMMANDS
 
 
 def gpt_cli_test(command: CLICase) -> None: