diff --git a/python/qianfan/resources/llm/base.py b/python/qianfan/resources/llm/base.py
index b6f89fa7..412d05ab 100644
--- a/python/qianfan/resources/llm/base.py
+++ b/python/qianfan/resources/llm/base.py
@@ -47,7 +47,7 @@
 # This constant is used to express no model is spcified,
 # so that SDK still can get the requirements of API from _supported_models()
 UNSPECIFIED_MODEL = "UNSPECIFIED_MODEL"
-MAX_WORKER_THREAD_COUNT = 100000
+MAX_WORKER_THREAD_COUNT = 1000
 
 
 class BatchRequestFuture(object):