diff --git a/pilot/model/proxy/llms/chatgpt.py b/pilot/model/proxy/llms/chatgpt.py
index f54ec36b3..9e6d1a20a 100644
--- a/pilot/model/proxy/llms/chatgpt.py
+++ b/pilot/model/proxy/llms/chatgpt.py
@@ -9,6 +9,7 @@ from pilot.model.proxy.llms.proxy_model import ProxyModel
 from pilot.model.parameter import ProxyModelParameters
 from pilot.scene.base_message import ModelMessage, ModelMessageRoleType
 import httpx
+
 logger = logging.getLogger(__name__)
 
 
@@ -82,13 +83,12 @@ def _initialize_openai_v1(params: ProxyModelParameters):
         # Adapt previous proxy_server_url configuration
         base_url = params.proxy_server_url.split("/chat/completions")[0]
 
-    
     proxies = params.http_proxy
     openai_params = {
         "api_key": api_key,
         "base_url": base_url,
     }
-    return openai_params, api_type, api_version, proxies 
+    return openai_params, api_type, api_version, proxies
 
 
 def _build_request(model: ProxyModel, params):
@@ -128,7 +128,9 @@ def _build_request(model: ProxyModel, params):
     proxyllm_backend = model_params.proxyllm_backend
 
     if metadata.version("openai") >= "1.0.0":
-        openai_params, api_type, api_version, proxies = _initialize_openai_v1(model_params)
+        openai_params, api_type, api_version, proxies = _initialize_openai_v1(
+            model_params
+        )
         proxyllm_backend = proxyllm_backend or "gpt-3.5-turbo"
         payloads["model"] = proxyllm_backend
     else:
@@ -152,7 +154,9 @@ def chatgpt_generate_stream(
 ):
     if metadata.version("openai") >= "1.0.0":
         model_params = model.get_params()
-        openai_params, api_type, api_version, proxies = _initialize_openai_v1(model_params)
+        openai_params, api_type, api_version, proxies = _initialize_openai_v1(
+            model_params
+        )
         history, payloads = _build_request(model, params)
         if api_type == "azure":
             from openai import AzureOpenAI
@@ -160,15 +164,13 @@ def chatgpt_generate_stream(
             client = AzureOpenAI(
                 api_key=openai_params["api_key"],
                 api_version=api_version,
-                azure_endpoint=openai_params[
-                    "base_url"
-                ],  
-                http_client=httpx.Client(proxies=proxies)
+                azure_endpoint=openai_params["base_url"],
+                http_client=httpx.Client(proxies=proxies),
             )
         else:
             from openai import OpenAI
 
-            client = OpenAI(**openai_params,http_client=httpx.Client(proxies=proxies))
+            client = OpenAI(**openai_params, http_client=httpx.Client(proxies=proxies))
         res = client.chat.completions.create(messages=history, **payloads)
         text = ""
         for r in res:
@@ -197,7 +199,9 @@ async def async_chatgpt_generate_stream(
 ):
     if metadata.version("openai") >= "1.0.0":
         model_params = model.get_params()
-        openai_params, api_type, api_version,proxies  = _initialize_openai_v1(model_params)
+        openai_params, api_type, api_version, proxies = _initialize_openai_v1(
+            model_params
+        )
         history, payloads = _build_request(model, params)
         if api_type == "azure":
             from openai import AsyncAzureOpenAI
@@ -205,15 +209,15 @@ async def async_chatgpt_generate_stream(
             client = AsyncAzureOpenAI(
                 api_key=openai_params["api_key"],
                 api_version=api_version,
-                azure_endpoint=openai_params[
-                    "base_url"
-                ],  
-                http_client=httpx.AsyncClient(proxies=proxies)
+                azure_endpoint=openai_params["base_url"],
+                http_client=httpx.AsyncClient(proxies=proxies),
             )
         else:
             from openai import AsyncOpenAI
 
-            client = AsyncOpenAI(**openai_params,http_client=httpx.AsyncClient(proxies=proxies))
+            client = AsyncOpenAI(
+                **openai_params, http_client=httpx.AsyncClient(proxies=proxies)
+            )
 
         res = await client.chat.completions.create(messages=history, **payloads)
         text = ""