diff --git a/app/components/credential.py b/app/components/credential.py
index 6296b2fd..0707ac44 100644
--- a/app/components/credential.py
+++ b/app/components/credential.py
@@ -14,7 +14,7 @@ class Credential(BaseModel):
     api_key: str
     api_endpoint: str
     api_model: str
-    api_tool_model: str = "gpt-3.5-turbo"
+    api_tool_model: str = "gpt-4o-mini"
 
     @classmethod
     def from_provider(cls, token, provider_url):
@@ -36,7 +36,7 @@ def from_provider(cls, token, provider_url):
             api_key=user_data["api_key"],
             api_endpoint=user_data["api_endpoint"],
             api_model=user_data["api_model"],
-            api_tool_model=user_data.get("api_tool_model", "gpt-3.5-turbo"),
+            api_tool_model=user_data.get("api_tool_model", "gpt-4o-mini"),
         )
 
 
@@ -47,8 +47,8 @@ def from_provider(cls, token, provider_url):
     global_credential = Credential(
         api_key=os.getenv("GLOBAL_OAI_KEY"),
         api_endpoint=os.getenv("GLOBAL_OAI_ENDPOINT"),
-        api_model=os.getenv("GLOBAL_OAI_MODEL", "gpt-3.5-turbo"),
-        api_tool_model=os.getenv("GLOBAL_OAI_TOOL_MODEL", "gpt-3.5-turbo"),
+        api_model=os.getenv("GLOBAL_OAI_MODEL", "gpt-4o-mini"),
+        api_tool_model=os.getenv("GLOBAL_OAI_TOOL_MODEL", "gpt-4o-mini"),
     )
 else:
     global_credential = None
diff --git a/app/sender/discord/__init__.py b/app/sender/discord/__init__.py
index 1bc533d6..ae2be354 100644
--- a/app/sender/discord/__init__.py
+++ b/app/sender/discord/__init__.py
@@ -287,7 +287,7 @@ async def listen_endpoint_command(
             api_endpoint: str,
             api_key: str,
             api_model: str,
-            api_tool_model: str = "gpt-3.5-turbo",
+            api_tool_model: str = "gpt-4o-mini",
         ):
             try:
                 credential = Credential(
diff --git a/app/sender/kook/__init__.py b/app/sender/kook/__init__.py
index 1af93fdb..2ae920fe 100644
--- a/app/sender/kook/__init__.py
+++ b/app/sender/kook/__init__.py
@@ -297,8 +297,8 @@ async def listen_login_command(
             msg: Message,
             api_endpoint: str,
             api_key: str,
-            api_model: str = "gpt-3.5-turbo",
-            api_tool_model: str = "gpt-3.5-turbo",
+            api_model: str = "gpt-4o-mini",
+            api_tool_model: str = "gpt-4o-mini",
         ):
             try:
                 credential = Credential(
diff --git a/app/sender/util_func.py b/app/sender/util_func.py
index 37d67252..ba9f37b7 100644
--- a/app/sender/util_func.py
+++ b/app/sender/util_func.py
@@ -170,7 +170,7 @@ async def login(uid: str, arg_string) -> str:
     error = telegramify_markdown.convert(
         "🔑 **Incorrect format.**\n"
         "You can set it via `/login https://<something api.openai.com>/v1$<api key>"
-        "$<model such as gpt-4-turbo>$<tool_model such as gpt-3.5-turbo>` format, "
+        "$<model such as gpt-4-turbo>$<tool_model such as gpt-4o-mini>` format, "
         "or you can log in via URL using `/login token$https://provider.com`.\n"
         "Use $ to separate the parameters."
     )
@@ -202,7 +202,7 @@ async def login(uid: str, arg_string) -> str:
         if len(settings) == 4:
             api_tool_model = settings[3]
         else:
-            api_tool_model = "gpt-3.5-turbo"
+            api_tool_model = "gpt-4o-mini"
         credential = Credential(
             api_endpoint=api_endpoint,
             api_key=api_key,