diff --git a/controller/billing.go b/controller/billing.go
index ec8e3ce3..7bc63425 100644
--- a/controller/billing.go
+++ b/controller/billing.go
@@ -71,7 +71,7 @@ func GetUsage(c *gin.Context) {
 	}
 	usage := OpenAIUsageResponse{
 		Object:     "list",
-		TotalUsage: amount,
+		TotalUsage: amount * 100,
 	}
 	c.JSON(200, usage)
 	return
diff --git a/controller/relay-text.go b/controller/relay-text.go
index bdf38f26..95c58eb8 100644
--- a/controller/relay-text.go
+++ b/controller/relay-text.go
@@ -4,6 +4,7 @@ import (
 	"bufio"
 	"bytes"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"github.com/gin-gonic/gin"
 	"io"
@@ -30,6 +31,25 @@ func relayTextHelper(c *gin.Context, relayMode int) *OpenAIErrorWithStatusCode {
 	if relayMode == RelayModeModeration && textRequest.Model == "" {
 		textRequest.Model = "text-moderation-latest"
 	}
+	// request validation
+	if textRequest.Model == "" {
+		return errorWrapper(errors.New("model is required"), "required_field_missing", http.StatusBadRequest)
+	}
+	switch relayMode {
+	case RelayModeCompletions:
+		if textRequest.Prompt == "" {
+			return errorWrapper(errors.New("prompt is required"), "required_field_missing", http.StatusBadRequest)
+		}
+	case RelayModeChatCompletions:
+		if len(textRequest.Messages) == 0 {
+			return errorWrapper(errors.New("messages is required"), "required_field_missing", http.StatusBadRequest)
+		}
+	case RelayModeEmbeddings:
+	case RelayModeModeration:
+		if textRequest.Input == "" {
+			return errorWrapper(errors.New("input is required"), "required_field_missing", http.StatusBadRequest)
+		}
+	}
 	baseURL := common.ChannelBaseURLs[channelType]
 	requestURL := c.Request.URL.String()
 	if c.GetString("base_url") != "" {
@@ -140,21 +160,26 @@ func relayTextHelper(c *gin.Context, relayMode int) *OpenAIErrorWithStatusCode {
 			if ratio != 0 && quota <= 0 {
 				quota = 1
 			}
+			totalTokens := promptTokens + completionTokens
+			if totalTokens == 0 {
+				// in this case, must be some error happened
+				// we cannot just return, because we may have to return the pre-consumed quota
+				quota = 0
+			}
 			tokenName := c.GetString("token_name")
 			logContent := fmt.Sprintf("模型倍率 %.2f，分组倍率 %.2f", modelRatio, groupRatio)
-			model.RecordConsumeLog(userId, promptTokens, completionTokens, textRequest.Model, tokenName, quota, logContent, channelName)
+			model.RecordConsumeLog(userId, promptTokens, completionTokens, textRequest.Model, tokenName, quota, logContent)
 			if strings.Contains(channelName, "免费") == false {
 				quotaDelta := quota - preConsumedQuota
 				err := model.PostConsumeTokenQuota(tokenId, quotaDelta)
 				if err != nil {
 					common.SysError("error consuming token remain quota: " + err.Error())
 				}
-				//tokenName := c.GetString("token_name")
-				//logContent := fmt.Sprintf("模型倍率 %.2f，分组倍率 %.2f", modelRatio, groupRatio)
-				//model.RecordConsumeLog(userId, promptTokens, completionTokens, textRequest.Model, tokenName, quota, logContent, channelName)
-				model.UpdateUserUsedQuotaAndRequestCount(userId, quota)
-				channelId := c.GetInt("channel_id")
-				model.UpdateChannelUsedQuota(channelId, quota)
+				if quota != 0 {
+					model.UpdateUserUsedQuotaAndRequestCount(userId, quota)
+					channelId := c.GetInt("channel_id")
+					model.UpdateChannelUsedQuota(channelId, quota)
+				}
 			}
 		}
 	}()