diff --git a/README.md b/README.md
index c750290c..5785c862 100644
--- a/README.md
+++ b/README.md
@@ -411,7 +411,7 @@ Using OpenAI models:
 export ANTHROPIC_BASE_URL=http://127.0.0.1:8317
 export ANTHROPIC_AUTH_TOKEN=sk-dummy
 export ANTHROPIC_MODEL=gpt-5
-export ANTHROPIC_SMALL_FAST_MODEL=gpt-5-nano
+export ANTHROPIC_SMALL_FAST_MODEL=gpt-5-minimal
 ```
 
 Using Claude models:
diff --git a/README_CN.md b/README_CN.md
index 8e0c59da..626c5b29 100644
--- a/README_CN.md
+++ b/README_CN.md
@@ -405,7 +405,7 @@ export ANTHROPIC_SMALL_FAST_MODEL=gemini-2.5-flash
 export ANTHROPIC_BASE_URL=http://127.0.0.1:8317
 export ANTHROPIC_AUTH_TOKEN=sk-dummy
 export ANTHROPIC_MODEL=gpt-5
-export ANTHROPIC_SMALL_FAST_MODEL=gpt-5-nano
+export ANTHROPIC_SMALL_FAST_MODEL=gpt-5-minimal
 ```
 
 使用 Claude 模型：