diff --git a/.env.example b/.env.example
index 2a67960..79d7a69 100644
--- a/.env.example
+++ b/.env.example
@@ -7,7 +7,7 @@ PORT=8000
 # API 配置
 # ===================
 # API 端点地址
-API_ENDPOINT=https://chat.z.ai/api/chat/completions
+API_ENDPOINT=https://chat.z.ai/api/v2/chat/completions
 
 # 认证令牌（支持多个，逗号分隔）
 # 用于验证客户端请求
diff --git a/internal/chat.go b/internal/chat.go
index 296eb3a..c0ef1ab 100644
--- a/internal/chat.go
+++ b/internal/chat.go
@@ -172,8 +172,8 @@ func makeUpstreamRequest(token string, messages []Message, model string, imageUR
 
 	signature := GenerateSignature(userID, requestID, latestUserContent, timestamp)
 
-	url := fmt.Sprintf("https://chat.z.ai/api/v2/chat/completions?timestamp=%d&requestId=%s&user_id=%s&version=0.0.1&platform=web&token=%s&current_url=%s&pathname=%s&signature_timestamp=%d",
-		timestamp, requestID, userID, token,
+	url := fmt.Sprintf("%s?timestamp=%d&requestId=%s&user_id=%s&version=0.0.1&platform=web&token=%s&current_url=%s&pathname=%s&signature_timestamp=%d",
+		Cfg.APIEndpoint, timestamp, requestID, userID, token,
 		fmt.Sprintf("https://chat.z.ai/c/%s", chatID),
 		fmt.Sprintf("/c/%s", chatID),
 		timestamp)
@@ -288,7 +288,7 @@ func makeUpstreamRequest(token string, messages []Message, model string, imageUR
 
 	LogDebug("Upstream request: model=%s, messages=%d, XFF=%s", targetModel, len(messages), randomIP)
 
-	client := &http.Client{Timeout: 60 * time.Second}
+	client := &http.Client{Timeout: 300 * time.Second}
 	resp, err := client.Do(req)
 	if err != nil {
 		return nil, "", err
diff --git a/internal/config.go b/internal/config.go
index 83e6ff3..8a23606 100644
--- a/internal/config.go
+++ b/internal/config.go
@@ -111,7 +111,7 @@ func LoadConfig() {
 		Port: getEnvString("PORT", "8000"),
 
 		// API Configuration
-		APIEndpoint:  getEnvString("API_ENDPOINT", "https://chat.z.ai/api/chat/completions"),
+		APIEndpoint:  getEnvString("API_ENDPOINT", "https://chat.z.ai/api/v2/chat/completions"),
 		AuthTokens:   getEnvStringSlice("AUTH_TOKEN"),
 		BackupTokens: getEnvStringSlice("BACKUP_TOKEN"),
 
diff --git a/internal/model_fetcher.go b/internal/model_fetcher.go
index 12940d1..0db7b99 100644
--- a/internal/model_fetcher.go
+++ b/internal/model_fetcher.go
@@ -164,9 +164,9 @@ func initBuiltinMappings() {
 		DisplayName:       "GLM-5",
 		UpstreamModelID:   "glm-5",
 		UpstreamModelName: "GLM-5",
-		EnableThinking:    true,
-		AutoWebSearch:     true,
-		MCPServers:        []string{"advanced-search"},
+		EnableThinking:    false,
+		AutoWebSearch:     false,
+		MCPServers:        []string{},
 		OwnedBy:           "z.ai",
 		IsBuiltin:         true,
 	}
@@ -175,8 +175,8 @@ func initBuiltinMappings() {
 		UpstreamModelID:   "glm-5",
 		UpstreamModelName: "GLM-5-Thinking",
 		EnableThinking:    true,
-		AutoWebSearch:     true,
-		MCPServers:        []string{"advanced-search"},
+		AutoWebSearch:     false,
+		MCPServers:        []string{},
 		OwnedBy:           "z.ai",
 		IsBuiltin:         true,
 	}