diff --git a/autogpt/command_decorator.py b/autogpt/command_decorator.py
index d082d9bf..9a6f58ae 100644
--- a/autogpt/command_decorator.py
+++ b/autogpt/command_decorator.py
@@ -1,7 +1,11 @@
-import functools
-from typing import Any, Callable, Optional, TypedDict
+from __future__ import annotations
+
+import functools
+from typing import TYPE_CHECKING, Any, Callable, Optional, TypedDict
+
+if TYPE_CHECKING:
+    from autogpt.config import Config
 
-from autogpt.config import Config
 from autogpt.models.command import Command, CommandParameter
 
 # Unique identifier for auto-gpt commands
diff --git a/autogpt/config/config.py b/autogpt/config/config.py
index c0d30910..93fc42e9 100644
--- a/autogpt/config/config.py
+++ b/autogpt/config/config.py
@@ -13,6 +13,7 @@ from colorama import Fore
 from pydantic import Field, validator
 
 from autogpt.core.configuration.schema import Configurable, SystemSettings
+from autogpt.llm.providers.openai import OPEN_AI_CHAT_MODELS
 from autogpt.plugins.plugins_config import PluginsConfig
 
 AI_SETTINGS_FILE = "ai_settings.yaml"
@@ -147,6 +148,15 @@ class Config(SystemSettings, arbitrary_types_allowed=True):
         ), f"Plugins must subclass AutoGPTPluginTemplate; {p} is a template instance"
         return p
 
+    @validator("openai_functions")
+    def validate_openai_functions(cls, v: bool, values: dict[str, Any]):
+        if v:
+            smart_llm = values["smart_llm"]
+            assert OPEN_AI_CHAT_MODELS[smart_llm].supports_functions, (
+                f"Model {smart_llm} does not support OpenAI Functions. "
+                "Please disable OPENAI_FUNCTIONS or choose a suitable model."
+            )
+
     def get_openai_credentials(self, model: str) -> dict[str, str]:
         credentials = {
             "api_key": self.openai_api_key,
diff --git a/autogpt/llm/base.py b/autogpt/llm/base.py
index 14a146b3..1ac00112 100644
--- a/autogpt/llm/base.py
+++ b/autogpt/llm/base.py
@@ -67,6 +67,8 @@ class CompletionModelInfo(ModelInfo):
 class ChatModelInfo(CompletionModelInfo):
     """Struct for chat model information."""
 
+    supports_functions: bool = False
+
 
 @dataclass
 class TextModelInfo(CompletionModelInfo):
diff --git a/autogpt/llm/providers/openai.py b/autogpt/llm/providers/openai.py
index 6e746142..35c652f0 100644
--- a/autogpt/llm/providers/openai.py
+++ b/autogpt/llm/providers/openai.py
@@ -36,12 +36,14 @@ OPEN_AI_CHAT_MODELS = {
             prompt_token_cost=0.0015,
             completion_token_cost=0.002,
             max_tokens=4096,
+            supports_functions=True,
         ),
         ChatModelInfo(
             name="gpt-3.5-turbo-16k-0613",
             prompt_token_cost=0.003,
             completion_token_cost=0.004,
             max_tokens=16384,
+            supports_functions=True,
         ),
         ChatModelInfo(
             name="gpt-4-0314",
@@ -54,6 +56,7 @@ OPEN_AI_CHAT_MODELS = {
             prompt_token_cost=0.03,
             completion_token_cost=0.06,
             max_tokens=8191,
+            supports_functions=True,
         ),
         ChatModelInfo(
             name="gpt-4-32k-0314",
@@ -66,6 +69,7 @@ OPEN_AI_CHAT_MODELS = {
             prompt_token_cost=0.06,
             completion_token_cost=0.12,
             max_tokens=32768,
+            supports_functions=True,
         ),
     ]
 }
diff --git a/autogpt/models/command.py b/autogpt/models/command.py
index 61469786..a7cec509 100644
--- a/autogpt/models/command.py
+++ b/autogpt/models/command.py
@@ -1,6 +1,9 @@
-from typing import Any, Callable, Optional
+from __future__ import annotations
 
-from autogpt.config import Config
+from typing import TYPE_CHECKING, Any, Callable, Optional
+
+if TYPE_CHECKING:
+    from autogpt.config import Config
 
 from .command_parameter import CommandParameter