diff --git a/setup.py b/setup.py
index 760d607..58779ef 100644
--- a/setup.py
+++ b/setup.py
@@ -56,7 +56,7 @@
 
 setup(
     name="python-tgpt",
-    version="0.7.6",
+    version="0.7.7",
     license="MIT",
     author="Smartwa",
     maintainer="Smartwa",
diff --git a/src/pytgpt/novita/main.py b/src/pytgpt/novita/main.py
index 26d6270..3aa4cc7 100644
--- a/src/pytgpt/novita/main.py
+++ b/src/pytgpt/novita/main.py
@@ -36,10 +36,10 @@ class NOVITA(OPENAI):
     """Novita AI provider"""
 
     def __init__(self, *args, **kwargs):
-        kwargs.setdefault("model", model)
-        if not model in available_models:
+        model_choice = kwargs.setdefault("model", model)
+        if not model_choice in available_models:
             raise UnsupportedModelError(
-                f"Model '{model}' is not yet supported. Choose from {available_models}"
+                f"Model '{model_choice}' is not yet supported. Choose from {available_models}"
             )
         super().__init__(*args, **kwargs)
         self.chat_endpoint = "https://api.novita.ai/v3/openai/chat/completions"
@@ -49,10 +49,10 @@ class AsyncNOVITA(AsyncOPENAI):
     """Async Novita AI provider"""
 
     def __init__(self, *args, **kwargs):
-        kwargs.setdefault("model", model)
-        if not model in available_models:
+        model_choice = kwargs.setdefault("model", model)
+        if not model_choice in available_models:
             raise UnsupportedModelError(
-                f"Model '{model}' is not yet supported choose from {available_models}"
+                f"Model '{model_choice}' is not yet supported. Choose from {available_models}"
             )
         super().__init__(*args, **kwargs)
         self.chat_endpoint = "https://api.novita.ai/v3/openai/chat/completions"