diff --git a/backend/src/module/models/config.py b/backend/src/module/models/config.py
index 3358124b..51de420a 100644
--- a/backend/src/module/models/config.py
+++ b/backend/src/module/models/config.py
@@ -84,8 +84,8 @@ class Notification(BaseModel):
 class Experimental(BaseModel):
     openai_enable: bool = Field(False, description="Enable experimental OpenAI")
     openai_api_key: str = Field("", description="OpenAI api key")
-    openai_api_base: str = Field("", description="OpenAI api base url")
-    openai_model: str = Field("", description="OpenAI model")
+    openai_api_base: str = Field("https://api.openai.com/v1", description="OpenAI api base url")
+    openai_model: str = Field("gpt-3.5-turbo", description="OpenAI model")
 
 
 class Config(BaseModel):
@@ -96,7 +96,7 @@ class Config(BaseModel):
     log: Log = Log()
     proxy: Proxy = Proxy()
     notification: Notification = Notification()
-    Experimental: Experimental = Experimental()
+    experimental: Experimental = Experimental()
 
     def dict(self, *args, by_alias=True, **kwargs):
         return super().dict(*args, by_alias=by_alias, **kwargs)
diff --git a/backend/src/module/parser/openai.py b/backend/src/module/parser/openai.py
index 4f184517..2ac051ca 100644
--- a/backend/src/module/parser/openai.py
+++ b/backend/src/module/parser/openai.py
@@ -58,10 +58,12 @@ class OpenAIParser:
                 the OpenAI api base url, you can use custom url here. \
                 Defaults to "https://api.openai.com/v1".
             model (str):
-                the ChatGPT model parameter, you can get more details from https://platform.openai.com/docs/api-reference/chat/create. \
+                the ChatGPT model parameter, you can get more details from \
+                https://platform.openai.com/docs/api-reference/chat/create. \
                 Defaults to "gpt-3.5-turbo".
             kwargs (dict):
-                the OpenAI ChatGPT parameters, you can get more details from https://platform.openai.com/docs/api-reference/chat/create.
+                the OpenAI ChatGPT parameters, you can get more details from \
+                https://platform.openai.com/docs/api-reference/chat/create.
 
         Raises:
             ValueError: if api_key is not provided.
diff --git a/webui/types/config.ts b/webui/types/config.ts
index 00e40f1d..180fff0b 100644
--- a/webui/types/config.ts
+++ b/webui/types/config.ts
@@ -105,7 +105,7 @@ export const initConfig: Config = {
   experimental: {
     openai_enable: false,
     openai_api_key: '',
-    openai_api_base: '',
+    openai_api_base: 'https://api.openai.com/v1/',
     openai_model: 'gpt-3.5-turbo',
   },
 };