diff --git a/pkg/openai/pricing.bak.py b/pkg/openai/pricing.bak.py
deleted file mode 100644
index 8a46978b..00000000
--- a/pkg/openai/pricing.bak.py
+++ /dev/null
@@ -1,28 +0,0 @@
-# 计费模块
-# 已弃用 https://github.com/RockChinQ/QChatGPT/issues/81
-
-import logging
-
-pricing = {
-    "base": {  # 文字模型单位是1000字符
-        "text-davinci-003": 0.02,
-    },
-    "image": {
-        "256x256": 0.016,
-        "512x512": 0.018,
-        "1024x1024": 0.02,
-    }
-}
-
-
-def language_base_price(model, text):
-    salt_rate = 0.93
-    length = ((len(text.encode('utf-8')) - len(text)) / 2 + len(text)) * salt_rate
-    logging.debug("text length: %d" % length)
-
-    return pricing["base"][model] * length / 1000
-
-
-def image_price(size):
-    logging.debug("image size: %s" % size)
-    return pricing["image"][size]
diff --git a/pkg/openai/sess.py b/pkg/openai/sess.py
deleted file mode 100644
index 898e8b04..00000000
--- a/pkg/openai/sess.py
+++ /dev/null
@@ -1,79 +0,0 @@
-import time
-import threading
-import logging
-
-
-sessions = {}
-
-
-class SessionOfflineStatus:
-    ON_GOING = "on_going"
-    EXPLICITLY_CLOSED = "explicitly_closed"
-
-
-def reset_session_prompt(session_name, prompt):
-    pass
-
-
-def load_sessions():
-    pass
-
-
-def get_session(session_name: str) -> 'Session':
-    pass
-
-
-def dump_session(session_name: str):
-    pass
-
-
-class Session:
-    name: str = ''
-
-    default_prompt: list = []
-    """会话系统提示语"""
-
-    messages: list = []
-    """保存消息历史记录"""
-
-    token_counts: list = []
-    """记录每回合的token数量"""
-
-    create_ts: int = 0
-    """会话创建时间戳"""
-
-    last_active_ts: int = 0
-    """会话最后活跃时间戳"""
-
-    just_switched_to_exist_session: bool = False
-
-    response_lock = None
-
-    def __init__(self, name: str):
-        self.name = name
-        self.default_prompt = self.get_runtime_default_prompt()
-        logging.debug("prompt is: {}".format(self.default_prompt))
-        self.messages = []
-        self.token_counts = []
-        self.create_ts = int(time.time())
-        self.last_active_ts = int(time.time())
-
-        self.response_lock = threading.Lock()
-
-        self.schedule()
-        
-    def get_runtime_default_prompt(self, use_default: str = None) -> list:
-        """从提示词管理器中获取所需提示词"""
-        import pkg.openai.dprompt as dprompt
-
-        if use_default is None:
-            use_default = dprompt.mode_inst().get_using_name()
-
-        current_default_prompt, _ = dprompt.mode_inst().get_prompt(use_default)
-        return current_default_prompt
-
-    def schedule(self):
-        """定时会话过期检查任务"""
-
-    def expire_check_timer_loop(self):
-        """会话过期检查任务"""