diff --git a/docutranslate/translator/ai_translator/base.py b/docutranslate/translator/ai_translator/base.py
index 9622149..f63bcd9 100644
--- a/docutranslate/translator/ai_translator/base.py
+++ b/docutranslate/translator/ai_translator/base.py
@@ -4,7 +4,7 @@ from abc import abstractmethod
 from dataclasses import dataclass, field
 from typing import TypeVar
 
-from docutranslate.agents.agent import ThinkingMode, AgentConfig
+from docutranslate.agents.agent import AgentConfig
 from docutranslate.agents.glossary_agent import GlossaryAgentConfig, GlossaryAgent
 from docutranslate.ir.document import Document
 from docutranslate.translator.base import Translator, TranslatorConfig
diff --git a/更新日志.txt b/更新日志.txt
index bd0804c..ceb14f9 100644
--- a/更新日志.txt
+++ b/更新日志.txt
@@ -6,6 +6,8 @@ v1.4.3版 2025.9.6
 - 可以设置重试次数
 修复
 - 修复未设置logger会报错的问题
+优化
+- 代码中默认思考模式改为"disable"
 ----------------
 v1.4.2版 2025.9.6
 优化