diff --git a/.env.example b/.env.example
index ac499bb..db40641 100644
--- a/.env.example
+++ b/.env.example
@@ -8,6 +8,9 @@
 # -----------------------------------------------------------------------------
 GEMINI_API_KEY=your-gemini-api-key-here
 
+# Gemini 模型名称（可选，默认：gemini-2.0-flash-lite）
+# GEMINI_MODEL=gemini-2.0-flash-lite
+
 # -----------------------------------------------------------------------------
 # OpenClaw Auth Runtime 配置（用于 API 访问）
 # 从 ~/clawd/skills/_shared 获取 CLIENT_KEY