diff --git a/src/routes/api.js b/src/routes/api.js
index 898293bd..62729389 100644
--- a/src/routes/api.js
+++ b/src/routes/api.js
@@ -1085,6 +1085,18 @@ router.post('/v1/messages/count_tokens', authenticateApiKey, async (req, res) =>
         return res.status(error.httpStatus).json(error.errorPayload)
       }
 
+      // 客户端断开连接不是错误，使用 INFO 级别
+      if (error.message === 'Client disconnected') {
+        logger.info('🔌 Client disconnected during token count request')
+        if (!res.headersSent) {
+          return res.status(499).end() // 499 Client Closed Request
+        }
+        if (!res.destroyed && !res.finished) {
+          res.end()
+        }
+        return
+      }
+
       logger.error('❌ Token count error:', error)
       if (!res.headersSent) {
         return res.status(500).json({
diff --git a/src/routes/openaiRoutes.js b/src/routes/openaiRoutes.js
index 6367241e..207d0e0f 100644
--- a/src/routes/openaiRoutes.js
+++ b/src/routes/openaiRoutes.js
@@ -258,9 +258,9 @@ const handleResponses = async (req, res) => {
     const isStream = req.body?.stream !== false // 默认为流式（兼容现有行为）
 
     // 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'
-    )
+    const isCodexCLI =
+      req.body?.instructions?.startsWith('You are a coding agent running in the Codex CLI') ||
+      req.body?.instructions?.startsWith('You are Codex')
 
     // 如果不是 Codex CLI 请求，则进行适配
     if (!isCodexCLI) {
diff --git a/src/services/claudeConsoleRelayService.js b/src/services/claudeConsoleRelayService.js
index 46c72996..58272cb5 100644
--- a/src/services/claudeConsoleRelayService.js
+++ b/src/services/claudeConsoleRelayService.js
@@ -317,7 +317,12 @@ class ClaudeConsoleRelayService {
       }
     } catch (error) {
       // 处理特定错误
-      if (error.name === 'AbortError' || error.code === 'ECONNABORTED') {
+      if (
+        error.name === 'AbortError' ||
+        error.name === 'CanceledError' ||
+        error.code === 'ECONNABORTED' ||
+        error.code === 'ERR_CANCELED'
+      ) {
         logger.info('Request aborted due to client disconnect')
         throw new Error('Client disconnected')
       }