diff --git a/src/routes/openaiRoutes.js b/src/routes/openaiRoutes.js
index 207d0e0f..ba638ee8 100644
--- a/src/routes/openaiRoutes.js
+++ b/src/routes/openaiRoutes.js
@@ -260,7 +260,8 @@ const handleResponses = async (req, res) => {
     // 判断是否为 Codex CLI 的请求
     const isCodexCLI =
       req.body?.instructions?.startsWith('You are a coding agent running in the Codex CLI') ||
-      req.body?.instructions?.startsWith('You are Codex')
+      req.body?.instructions?.startsWith('You are Codex') ||
+      req.body?.instructions?.startsWith('You are GPT-5.1 running in the Codex CLI')
 
     // 如果不是 Codex CLI 请求，则进行适配
     if (!isCodexCLI) {