1 files changed, 21 insertions, 2 deletions

diff --git a/g4f/Provider/base_provider.py b/g4f/Provider/base_provider.py
index bc47a1fa..e1dcd24d 100644
--- a/g4f/Provider/base_provider.py
+++ b/g4f/Provider/base_provider.py
@@ -8,7 +8,7 @@ from inspect import signature, Parameter
 from .helper import get_cookies, format_prompt
 from ..typing import CreateResult, AsyncResult, Messages, Union
 from ..base_provider import BaseProvider
-from ..errors import NestAsyncioError
+from ..errors import NestAsyncioError, ModelNotSupportedError
 
 if sys.version_info < (3, 10):
     NoneType = type(None)
@@ -251,4 +251,23 @@ class AsyncGeneratorProvider(AsyncProvider):
         Returns:
             AsyncResult: An asynchronous generator yielding results.
         """
-        raise NotImplementedError()
\ No newline at end of file
+        raise NotImplementedError()
+    
+class ProviderModelMixin:
+    default_model: str
+    models: list[str] = []
+    model_aliases: dict[str, str] = {}
+    
+    @classmethod
+    def get_models(cls) -> list[str]:
+        return cls.models
+    
+    @classmethod
+    def get_model(cls, model: str) -> str:
+        if not model:
+            return cls.default_model
+        elif model in cls.model_aliases:
+            return cls.model_aliases[model]
+        elif model not in cls.get_models():
+            raise ModelNotSupportedError(f"Model is not supported: {model} in: {cls.__name__}")
+        return model
\ No newline at end of file