diff --git a/controller/relay.go b/controller/relay.go
index ced2a901..692373c4 100644
--- a/controller/relay.go
+++ b/controller/relay.go
@@ -6,6 +6,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"github.com/gin-gonic/gin"
+	"github.com/pkoukk/tiktoken-go"
 	"io"
 	"net/http"
 	"one-api/common"
@@ -44,6 +45,13 @@ type StreamResponse struct {
 	} `json:"choices"`
 }
 
+var tokenEncoder, _ = tiktoken.GetEncoding("cl100k_base")
+
+func countToken(text string) int {
+	token := tokenEncoder.Encode(text, nil, nil)
+	return len(token)
+}
+
 func Relay(c *gin.Context) {
 	err := relayHelper(c)
 	if err != nil {
@@ -64,6 +72,7 @@ func relayHelper(c *gin.Context) error {
 	if channelType == common.ChannelTypeCustom {
 		baseURL = c.GetString("base_url")
 	}
+	var textRequest TextRequest
 	if consumeQuota {
 		requestBody, err := io.ReadAll(c.Request.Body)
 		if err != nil {
@@ -73,7 +82,6 @@ func relayHelper(c *gin.Context) error {
 		if err != nil {
 			return err
 		}
-		var textRequest TextRequest
 		err = json.Unmarshal(requestBody, &textRequest)
 		if err != nil {
 			return err
@@ -112,7 +120,12 @@ func relayHelper(c *gin.Context) error {
 		if consumeQuota {
 			quota := 0
 			if isStream {
-				quota = int(float64(len(streamResponseText)) * common.BytesNumber2Quota)
+				var text string
+				for _, message := range textRequest.Messages {
+					text += fmt.Sprintf("%s: %s\n", message.Role, message.Content)
+				}
+				text += fmt.Sprintf("%s: %s\n", "assistant", streamResponseText)
+				quota = countToken(text) + 3
 			} else {
 				quota = textResponse.Usage.TotalTokens
 			}
diff --git a/go.mod b/go.mod
index a84c243f..85ff2f4a 100644
--- a/go.mod
+++ b/go.mod
@@ -25,6 +25,7 @@ require (
 	github.com/cespare/xxhash/v2 v2.1.2 // indirect
 	github.com/chenzhuoyu/base64x v0.0.0-20221115062448-fe3a3abad311 // indirect
 	github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
+	github.com/dlclark/regexp2 v1.8.1 // indirect
 	github.com/gin-contrib/sse v0.1.0 // indirect
 	github.com/go-playground/locales v0.14.1 // indirect
 	github.com/go-playground/universal-translator v0.18.1 // indirect
@@ -44,6 +45,7 @@ require (
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
 	github.com/pelletier/go-toml/v2 v2.0.7 // indirect
+	github.com/pkoukk/tiktoken-go v0.1.1 // indirect
 	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
 	github.com/ugorji/go/codec v1.2.11 // indirect
 	golang.org/x/arch v0.3.0 // indirect
diff --git a/go.sum b/go.sum
index 4bd964b1..f11b9780 100644
--- a/go.sum
+++ b/go.sum
@@ -14,6 +14,8 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f h1:lO4WD4F/rVNCu3HqELle0jiPLLBs70cWOduZpkS1E78=
 github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f/go.mod h1:cuUVRXasLTGF7a8hSLbxyZXjz+1KgoB3wDUb6vlszIc=
+github.com/dlclark/regexp2 v1.8.1 h1:6Lcdwya6GjPUNsBct8Lg/yRPwMhABj269AAzdGSiR+0=
+github.com/dlclark/regexp2 v1.8.1/go.mod h1:DHkYz0B9wPfa6wondMfaivmHpzrQ3v9q8cnmRbL6yW8=
 github.com/fsnotify/fsnotify v1.4.9 h1:hsms1Qyu0jgnwNXIxa+/V/PDsU6CfLf6CNO8H7IWoS4=
 github.com/gin-contrib/cors v1.4.0 h1:oJ6gwtUl3lqV0WEIwM/LxPF1QZ5qe2lGWdY2+bz7y0g=
 github.com/gin-contrib/cors v1.4.0/go.mod h1:bs9pNM0x/UsmHPBWT2xZz9ROh8xYjYkiURUfmBoMlcs=
@@ -119,6 +121,8 @@ github.com/pelletier/go-toml/v2 v2.0.1/go.mod h1:r9LEWfGN8R5k0VXJ+0BkIe7MYkRdwZO
 github.com/pelletier/go-toml/v2 v2.0.7 h1:muncTPStnKRos5dpVKULv2FVd4bMOhNePj9CjgDb8Us=
 github.com/pelletier/go-toml/v2 v2.0.7/go.mod h1:eumQOmlWiOPt5WriQQqoM5y18pDHwha2N+QD+EUNTek=
 github.com/pkg/diff v0.0.0-20210226163009-20ebb0f2a09e/go.mod h1:pJLUxLENpZxwdsKMEsNbx1VGcRFpLqf3715MtcvvzbA=
+github.com/pkoukk/tiktoken-go v0.1.1 h1:jtkYlIECjyM9OW1w4rjPmTohK4arORP9V25y6TM6nXo=
+github.com/pkoukk/tiktoken-go v0.1.1/go.mod h1:boMWvk9pQCOTx11pgu0DrIdrAKgQzzJKUP6vLXaz7Rw=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/rogpeppe/go-internal v1.6.1/go.mod h1:xXDCJY+GAPziupqXw64V24skbSoqbTEfhy4qGm1nDQc=