diff --git a/src/marvin/settings.py b/src/marvin/settings.py
index b5c86edc1..50dc6f72a 100644
--- a/src/marvin/settings.py
+++ b/src/marvin/settings.py
@@ -36,7 +36,7 @@ class ChatCompletionSettings(MarvinSettings):
     model_config = SettingsConfigDict(
         env_prefix="marvin_chat_completions_", extra="ignore"
     )
-    model: str = Field(description="The default chat model to use.", default="gpt-4")
+    model: str = Field(description="The default chat model to use.", default="gpt-4o")
 
     temperature: float = Field(description="The default temperature to use.", default=1)
 
@@ -54,9 +54,7 @@ def encoder(self):
 
 class ChatVisionSettings(MarvinSettings):
     model_config = SettingsConfigDict(env_prefix="marvin_chat_vision_", extra="ignore")
-    model: str = Field(
-        description="The default vision model to use.", default="gpt-4-vision-preview"
-    )
+    model: str = Field(description="The default vision model to use.", default="gpt-4o")
     temperature: float = Field(description="The default temperature to use.", default=1)
     max_tokens: int = 500
 
@@ -133,13 +131,13 @@ class AssistantSettings(MarvinSettings):
     """Settings for the assistant API.
 
     Attributes:
-        model: The default assistant model to use, defaults to `gpt-4-1106-preview`.
+        model: The default assistant model to use
     """
 
     model_config = SettingsConfigDict(env_prefix="marvin_assistant_")
 
     model: str = Field(
-        default="gpt-4-1106-preview",
+        default="gpt-4o",
         description="The default assistant model to use.",
     )