diff --git a/app/Models/Setting.php b/app/Models/Setting.php
index 0c585c16a..b529e5fc2 100644
--- a/app/Models/Setting.php
+++ b/app/Models/Setting.php
@@ -216,10 +216,11 @@ class Setting extends AbstractModel
     /**
      * AI 机器人模型转数组
      * @param $models
-     * @param bool $retValue
+     * @param bool $retValue 仅返回模型 value 列表
+     * @param bool $visibleOnly 仅返回可见模型（跳过标记 hidden 的项，供展示给终端用户的场景）
      * @return array
      */
-    public static function AIBotModels2Array($models, $retValue = false)
+    public static function AIBotModels2Array($models, $retValue = false, $visibleOnly = false)
     {
         $list = null;
         if (is_array($models)) {
@@ -244,6 +245,10 @@ class Setting extends AbstractModel
                 if ($value === '') {
                     continue;
                 }
+                // 隐藏模型：仍保存在设置中，但展示给终端用户时跳过（$visibleOnly）
+                if ($visibleOnly && !empty($item['hidden'])) {
+                    continue;
+                }
                 $label = trim((string)($item['name'] ?? $item['label'] ?? ''));
                 $thinking = strtolower(trim((string)($item['thinking'] ?? 'off')));
                 if (!in_array($thinking, ['off', 'low', 'medium', 'high'], true)) {
diff --git a/app/Models/UserBot.php b/app/Models/UserBot.php
index 11a09a719..84d08dfcf 100644
--- a/app/Models/UserBot.php
+++ b/app/Models/UserBot.php
@@ -273,8 +273,11 @@ class UserBot extends AbstractModel
                     if ($match[1] === "ai-") {
                         $aibotSetting = Base::setting('aibotSetting');
                         $aibotModel = $aibotSetting[$match[2] . '_model'];
-                        $aibotModels = Setting::AIBotModels2Array($aibotSetting[$match[2] . '_models']);
+                        $aibotModels = Setting::AIBotModels2Array($aibotSetting[$match[2] . '_models'], false, true);
                         if ($aibotModels) {
+                            if (!in_array($aibotModel, array_column($aibotModels, 'value'), true)) {
+                                $aibotModel = $aibotModels[0]['value'];
+                            }
                             $menus = array_merge(
                                 [
                                     [