diff --git a/bindings/chatllm.py b/bindings/chatllm.py
index 506d210..9e79d8b 100644
--- a/bindings/chatllm.py
+++ b/bindings/chatllm.py
@@ -98,6 +98,7 @@ def __init__(self, lib: str = '', model_storage: str = '', init_params: list[str
         self._chatllm_append_param      = self._lib.chatllm_append_param
         self._chatllm_start             = self._lib.chatllm_start
         self._chatllm_set_ai_prefix     = self._lib.chatllm_set_ai_prefix
+        self._chatllm_set_additional_args = self._lib.chatllm_set_additional_args
         self._chatllm_ai_continue       = self._lib.chatllm_ai_continue
         self._chatllm_user_input        = self._lib.chatllm_user_input
         self._chatllm_tool_input        = self._lib.chatllm_tool_input
@@ -132,7 +133,11 @@ def __init__(self, lib: str = '', model_storage: str = '', init_params: list[str
         self._chatllm_start.argtypes = [c_void_p, self._PRINTFUNC, self._ENDFUNC, c_void_p]
 
         self._chatllm_set_ai_prefix.restype = c_int
+        self._chatllm_set_additional_args = self._lib.chatllm_set_additional_args
         self._chatllm_set_ai_prefix.argtypes = [c_void_p, c_char_p]
+        self._chatllm_set_additional_args.restype = c_int
+        self._chatllm_set_additional_args.argtypes = [c_void_p, c_char_p]
+        self._chatllm_set_additional_args = self._lib.chatllm_set_additional_args
 
         self._chatllm_ai_continue.restype = c_int
         self._chatllm_ai_continue.argtypes = [c_void_p, c_char_p]
@@ -265,8 +270,18 @@ def start(self, obj: c_void_p, callback_obj: Any) -> int:
         id = self.alloc_id_for_obj(callback_obj)
         return self._chatllm_start(obj, self._cb_print, self._cb_end, c_void_p(id))
 
+    def set_additional_args(self, obj: c_void_p, key_value: Union[str, bytes]) -> int:
+        if isinstance(key_value, str):
+            key_value = key_value.encode()
+        return self._chatllm_set_additional_args(obj, c_char_p(key_value))
+
+    def set_additional_args(self, key: str, value: str) -> int:
+        key_value = f"{key}={value}"
+        return self._lib.set_additional_args(self._chat, key_value)
+
     def set_ai_prefix(self, obj: c_void_p, prefix: str) -> int:
         return self._chatllm_set_ai_prefix(obj, c_char_p(prefix.encode()))
+        self._chatllm_set_additional_args = self._lib.chatllm_set_additional_args
 
     def _input_multimedia_msg(self, obj: c_void_p, user_input: List[dict | str]) -> int:
         self._chatllm_multimedia_msg_prepare(obj)
@@ -449,6 +464,15 @@ def __init__(self, lib: LibChatLLM, param: Union[None, str, List[str]], auto_sta
     def append_param(self, param: Union[str, List[str]]) -> None:
         self._lib.append_param(self._chat, param)
 
+    def set_additional_args(self, obj: c_void_p, key_value: Union[str, bytes]) -> int:
+        if isinstance(key_value, str):
+            key_value = key_value.encode()
+        return self._chatllm_set_additional_args(obj, c_char_p(key_value))
+
+    def set_additional_args(self, key: str, value: str) -> int:
+        key_value = f"{key}={value}"
+        return self._lib.set_additional_args(self._chat, key_value)
+
     def set_ai_prefix(self, prefix: str) -> int:
         return self._lib.set_ai_prefix(self._chat, prefix)
 
diff --git a/bindings/libchatllm.h b/bindings/libchatllm.h
index 2a900d7..d9295e8 100644
--- a/bindings/libchatllm.h
+++ b/bindings/libchatllm.h
@@ -259,6 +259,7 @@ DLL_DECL int API_CALL chatllm_user_input_multimedia_msg(struct chatllm_obj *obj)
  * @param[in] utf8_str          prefix
  * @return                      0 if succeeded
  */
+DLL_DECL int API_CALL chatllm_set_additional_args(struct chatllm_obj *obj, const char *utf8_str);
 DLL_DECL int API_CALL chatllm_set_ai_prefix(struct chatllm_obj *obj, const char *utf8_str);
 
 /**
diff --git a/src/main.cpp b/src/main.cpp
index d9b48cb..954e11b 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1799,6 +1799,25 @@ int chatllm_async_start(struct chatllm_obj *obj, f_chatllm_print f_print, f_chat
     ASYNC_FUN_BODY(chatllm_start(obj, f_print, f_end, user_data));
 }
 
+int chatllm_set_additional_args(struct chatllm_obj *obj, const char *utf8_str)
+{
+    Chat *chat = reinterpret_cast<Chat *>(obj);
+    if (!chat->pipeline || !chat->pipeline->is_loaded()) {
+        return -1;
+    }
+    std::string str(utf8_str);
+    size_t eq_pos = str.find("=");
+    if (eq_pos == std::string::npos) {
+        return -2;
+    }
+    std::string key = str.substr(0, eq_pos);
+    std::string value = str.substr(eq_pos + 1);
+    std::map<std::string, std::string> args;
+    args[key] = value;
+    chat->pipeline->set_additional_args(args);
+    return 0;
+}
+
 int chatllm_set_ai_prefix(struct chatllm_obj *obj, const char *utf8_str)
 {
     Chat *chat = reinterpret_cast<Chat *>(obj);