@@ -1140,3 +1140,6 @@ msgstr "При отправке письма произошла неизвест
 
 msgid "You cannot change the password of an unconfirmed e-mail user."
 msgstr "Вы не можете изменить пароль неподтвержденного по e-mail пользователя."
+
+msgid "Model version not found or does not exist. Available versions: %(available_versions)s"
+msgstr "Версия модели не найдена или не существует. Доступные версии: %(available_versions)s"
@@ -9,6 +9,7 @@ import requests
 from django.core.files import File
 
 from messages.models import Message
+from ml_model.exceptions import InvalidVersionException
 from ml_model.models import (
     ModelInput,
     NeuronModel,
@@ -76,7 +77,9 @@ class Fluxproultra(SimpleService):
 
     def make(self, input_message: Message, save: bool = True) -> list[Message]:
         start_time = time.time()
-        version = input_message.info.get('version')
+        version = input_message.info.pop('version', 'flux-1.1-pro-ultra')
+        if version not in self.TOKENS_COST.keys():
+            raise InvalidVersionException(available_versions=', '.join(self.TOKENS_COST.keys()))
         callback_data = dict(
             {
                 'prompt': self.translate_prompt(input_message.content),
@@ -15,3 +15,13 @@ class LargeResourceConsumptionException(Exception): ...
 class DeploymentDisabled(Exception):
     def __str__(self):
         return _('The model is currently disabled. Please try again later.')
+
+
+class InvalidVersionException(Exception):
+    def __init__(self, available_versions: str) -> None:
+        self.available_versions = available_versions
+
+    def __str__(self) -> str:
+        return _(
+            'Model version not found or does not exist. Available versions: %(available_versions)s'
+        ) % {'available_versions': self.available_versions}