diff --git a/controller/channel.go b/controller/channel.go
index a31e1f47..a4ef87c3 100644
--- a/controller/channel.go
+++ b/controller/channel.go
@@ -623,3 +623,44 @@ func BatchSetChannelTag(c *gin.Context) {
 	})
 	return
 }
+
+func GetTagModels(c *gin.Context) {
+	tag := c.Query("tag")
+	if tag == "" {
+		c.JSON(http.StatusBadRequest, gin.H{
+			"success": false,
+			"message": "tag不能为空",
+		})
+		return
+	}
+
+	channels, err := model.GetChannelsByTag(tag, false) // Assuming false for idSort is fine here
+	if err != nil {
+		c.JSON(http.StatusInternalServerError, gin.H{
+			"success": false,
+			"message": err.Error(),
+		})
+		return
+	}
+
+	var longestModels string
+	maxLength := 0
+
+	// Find the longest models string among all channels with the given tag
+	for _, channel := range channels {
+		if channel.Models != "" {
+			currentModels := strings.Split(channel.Models, ",")
+			if len(currentModels) > maxLength {
+				maxLength = len(currentModels)
+				longestModels = channel.Models
+			}
+		}
+	}
+
+	c.JSON(http.StatusOK, gin.H{
+		"success": true,
+		"message": "",
+		"data":    longestModels,
+	})
+	return
+}
diff --git a/router/api-router.go b/router/api-router.go
index 1720ff57..6251c8a2 100644
--- a/router/api-router.go
+++ b/router/api-router.go
@@ -105,6 +105,7 @@ func SetApiRouter(router *gin.Engine) {
 			channelRoute.GET("/fetch_models/:id", controller.FetchUpstreamModels)
 			channelRoute.POST("/fetch_models", controller.FetchModels)
 			channelRoute.POST("/batch/tag", controller.BatchSetChannelTag)
+			channelRoute.GET("/tag/models", controller.GetTagModels)
 		}
 		tokenRoute := apiRouter.Group("/token")
 		tokenRoute.Use(middleware.UserAuth())