diff --git a/config.dev.json b/config.dev.json
index b78e4db..6234f34 100644
--- a/config.dev.json
+++ b/config.dev.json
@@ -1,4 +1,5 @@
 {
   "api_key": "your api key",
+  "proxy": "your proxy",
   "auto_pass": true
 }
diff --git a/config/config.go b/config/config.go
index 6afede1..8c5e594 100644
--- a/config/config.go
+++ b/config/config.go
@@ -13,6 +13,8 @@ type Configuration struct {
 	ApiKey string `json:"api_key"`
 	// 自动通过好友
 	AutoPass bool `json:"auto_pass"`
+	//代理地址
+	Proxy string `json:"proxy"`
 }
 
 var config *Configuration
@@ -39,12 +41,16 @@ func LoadConfig() *Configuration {
 		// 如果环境变量有配置，读取环境变量
 		ApiKey := os.Getenv("ApiKey")
 		AutoPass := os.Getenv("AutoPass")
+		Proxy := os.Getenv("Proxy")
 		if ApiKey != "" {
 			config.ApiKey = ApiKey
 		}
 		if AutoPass == "true" {
 			config.AutoPass = true
 		}
+		if Proxy != "" {
+			config.Proxy = Proxy
+		}
 	})
 	return config
 }
diff --git a/gtp/gtp.go b/gtp/gtp.go
index 15cd8e2..496baa6 100644
--- a/gtp/gtp.go
+++ b/gtp/gtp.go
@@ -3,47 +3,62 @@ package gtp
 import (
 	"bytes"
 	"encoding/json"
-	"github.com/869413421/wechatbot/config"
 	"io/ioutil"
 	"log"
 	"net/http"
+	"net/url"
+
+	"github.com/869413421/wechatbot/config"
 )
 
 const BASEURL = "https://api.openai.com/v1/"
 
 // ChatGPTResponseBody 请求体
 type ChatGPTResponseBody struct {
-	ID      string                   `json:"id"`
-	Object  string                   `json:"object"`
-	Created int                      `json:"created"`
-	Model   string                   `json:"model"`
-	Choices []map[string]interface{} `json:"choices"`
-	Usage   map[string]interface{}   `json:"usage"`
+	ID      string                 `json:"id"`
+	Object  string                 `json:"object"`
+	Created int                    `json:"created"`
+	Model   string                 `json:"model"`
+	Choices []ChoiceItem           `json:"choices"`
+	Usage   map[string]interface{} `json:"usage"`
 }
 
 type ChoiceItem struct {
+	Index        int            `json:"index"`
+	FinishReason string         `json:"finish_reason"`
+	Message      ChatGPTMessage `json:"message"`
 }
 
 // ChatGPTRequestBody 响应体
 type ChatGPTRequestBody struct {
-	Model            string  `json:"model"`
-	Prompt           string  `json:"prompt"`
-	MaxTokens        int     `json:"max_tokens"`
-	Temperature      float32 `json:"temperature"`
-	TopP             int     `json:"top_p"`
-	FrequencyPenalty int     `json:"frequency_penalty"`
-	PresencePenalty  int     `json:"presence_penalty"`
+	Model            string           `json:"model"`
+	Messages         []ChatGPTMessage `json:"messages"`
+	MaxTokens        int              `json:"max_tokens"`
+	Temperature      float32          `json:"temperature"`
+	TopP             int              `json:"top_p"`
+	FrequencyPenalty int              `json:"frequency_penalty"`
+	PresencePenalty  int              `json:"presence_penalty"`
+	Stop             []string         `json:"stop"`
+	User             string           `json:"user"`
+}
+
+type ChatGPTMessage struct {
+	Role    string `json:"role"`
+	Content string `json:"content"`
 }
 
 // Completions gtp文本模型回复
-//curl https://api.openai.com/v1/completions
-//-H "Content-Type: application/json"
-//-H "Authorization: Bearer your chatGPT key"
-//-d '{"model": "text-davinci-003", "prompt": "give me good song", "temperature": 0, "max_tokens": 7}'
+// curl https://api.openai.com/v1/chat/completions
+// -H "Content-Type: application/json"
+// -H "Authorization: Bearer your chatGPT key"
+// -d '{"model": "gpt-3.5-turbo", "messages": [{"role":"system", "content":"You are a assistant"}, {"role":"user", "content": "give me good song"}], "temperature": 0, "max_tokens": 7}'
 func Completions(msg string) (string, error) {
 	requestBody := ChatGPTRequestBody{
-		Model:            "text-davinci-003",
-		Prompt:           msg,
+		Model: "gpt-3.5-turbo",
+		Messages: []ChatGPTMessage{
+			{Role: "system", Content: "You are a helpful assistant."},
+			{Role: "user", Content: msg},
+		},
 		MaxTokens:        2048,
 		Temperature:      0.7,
 		TopP:             1,
@@ -56,15 +71,27 @@ func Completions(msg string) (string, error) {
 		return "", err
 	}
 	log.Printf("request gtp json string : %v", string(requestData))
-	req, err := http.NewRequest("POST", BASEURL+"completions", bytes.NewBuffer(requestData))
+	req, err := http.NewRequest("POST", BASEURL+"chat/completions", bytes.NewBuffer(requestData))
 	if err != nil {
 		return "", err
 	}
 
 	apiKey := config.LoadConfig().ApiKey
+	proxy := config.LoadConfig().Proxy
 	req.Header.Set("Content-Type", "application/json")
 	req.Header.Set("Authorization", "Bearer "+apiKey)
-	client := &http.Client{}
+	var client *http.Client
+	if len(proxy) == 0 {
+		client = &http.Client{}
+	} else {
+		proxyAddr, _ := url.Parse(proxy)
+		client = &http.Client{
+			Transport: &http.Transport{
+				Proxy: http.ProxyURL(proxyAddr),
+			},
+		}
+	}
+
 	response, err := client.Do(req)
 	if err != nil {
 		return "", err
@@ -85,7 +112,7 @@ func Completions(msg string) (string, error) {
 	var reply string
 	if len(gptResponseBody.Choices) > 0 {
 		for _, v := range gptResponseBody.Choices {
-			reply = v["text"].(string)
+			reply = v.Message.Content
 			break
 		}
 	}