diff --git a/service/task_polling.go b/service/task_polling.go
index 12395240e..dc85e579e 100644
--- a/service/task_polling.go
+++ b/service/task_polling.go
@@ -335,6 +335,8 @@ func updateVideoTasks(ctx context.Context, platform constant.TaskPlatform, chann
 		if err := updateVideoSingleTask(ctx, adaptor, cacheGetChannel, taskId, taskM); err != nil {
 			logger.LogError(ctx, fmt.Sprintf("Failed to update video task %s: %s", taskId, err.Error()))
 		}
+		// sleep 1 second between each task to avoid hitting rate limits of upstream platforms
+		time.Sleep(1 * time.Second)
 	}
 	return nil
 }
@@ -388,15 +390,33 @@ func updateVideoSingleTask(ctx context.Context, adaptor TaskPollingAdaptor, ch *
 		task.Data = t.Data
 	} else if taskResult, err = adaptor.ParseTaskResult(responseBody); err != nil {
 		return fmt.Errorf("parseTaskResult failed for task %s: %w", taskId, err)
-	} else {
-		task.Data = redactVideoResponseBody(responseBody)
 	}
 
+	task.Data = redactVideoResponseBody(responseBody)
+
 	logger.LogDebug(ctx, fmt.Sprintf("updateVideoSingleTask taskResult: %+v", taskResult))
 
 	now := time.Now().Unix()
 	if taskResult.Status == "" {
-		taskResult = relaycommon.FailTaskInfo("upstream returned empty status")
+		//taskResult = relaycommon.FailTaskInfo("upstream returned empty status")
+		errorResult := &dto.GeneralErrorResponse{}
+		if err = common.Unmarshal(responseBody, &errorResult); err == nil {
+			openaiError := errorResult.TryToOpenAIError()
+			if openaiError != nil {
+				// 返回规范的 OpenAI 错误格式，提取错误信息，判断错误是否为任务失败
+				if openaiError.Code == "429" {
+					// 429 错误通常表示请求过多或速率限制，暂时不认为是任务失败，保持原状态等待下一轮轮询
+					return nil
+				}
+
+				// 其他错误认为是任务失败，记录错误信息并更新任务状态
+				taskResult = relaycommon.FailTaskInfo("upstream returned error")
+			} else {
+				// unknown error format, log original response
+				logger.LogError(ctx, fmt.Sprintf("Task %s returned empty status with unrecognized error format, response: %s", taskId, string(responseBody)))
+				taskResult = relaycommon.FailTaskInfo("upstream returned unrecognized message")
+			}
+		}
 	}
 
 	shouldRefund := false