diff --git a/backend/src/module/parser/openai.py b/backend/src/module/parser/openai.py
index 1b77ef9a..c172fac0 100644
--- a/backend/src/module/parser/openai.py
+++ b/backend/src/module/parser/openai.py
@@ -44,16 +44,16 @@ class OpenAIParser:
     def __init__(
         self,
         api_key: str,
-        api_base: str | None = None,
-        model: str | None = None,
+        api_base: str = "https://api.openai.com/v1",
+        model: str = "gpt-3.5-turbo",
         **kwargs,
     ) -> None:
         if not api_key:
             raise ValueError("API key is required.")
 
         self._api_key = api_key
-        self.api_base = api_base or "https://api.openai.com/v1"
-        self.model = model or "gpt-3.5-turbo"
+        self.api_base = api_base
+        self.model = model
         self.openai_kwargs = kwargs
 
     def parse(self, text: str, prompt: str | None = None) -> str:
diff --git a/backend/src/test/test_openai.py b/backend/src/test/test_openai.py
index 7320bcb0..ea40f865 100644
--- a/backend/src/test/test_openai.py
+++ b/backend/src/test/test_openai.py
@@ -1,3 +1,4 @@
+import json
 import os
 
 from dotenv import load_dotenv
@@ -15,4 +16,10 @@ class TestOpenAIParser:
     def test_parse(self):
         text = "[梦蓝字幕组]New Doraemon 哆啦A梦新番[747][2023.02.25][AVC][1080P][GB_JP][MP4]"
         result = self.parser.parse(text=text)
-        assert result == "XXX"
+        assert json.loads(result) == {
+            "group": "梦蓝字幕组",
+            "title_en": "New Doraemon",
+            "resolution": "1080P",
+            "episode": 747,
+            "season": 1,
+        }