diff --git a/internal/controller/copilot/chat_completions.go b/internal/controller/copilot/chat_completions.go
index 61fab6a4f8d8e525cc1e26d118a1898d55b04fdc..bfe0d70f578e0ead12f0af95edf23ba839c191ea 100644
--- a/internal/controller/copilot/chat_completions.go
+++ b/internal/controller/copilot/chat_completions.go
@@ -8,6 +8,7 @@ import (
 	"github.com/gin-gonic/gin"
 	"github.com/tidwall/gjson"
 	"github.com/tidwall/sjson"
+	"fmt"
 	"io"
 	"log"
 	"net/http"
@@ -28,6 +29,21 @@ func chatCompletions(c *gin.Context) {
 	envModelName := os.Getenv("CHAT_API_MODEL_NAME")
 	c.Header("Content-Type", "text/event-stream")
 	body, _ = sjson.SetBytes(body, "model", envModelName)
+
+	if !gjson.GetBytes(body, "function_call").Exists() {
+		messages := gjson.GetBytes(body, "messages").Array()
+		for i, msg := range messages {
+			toolCalls := msg.Get("tool_calls").Array()
+			if len(toolCalls) == 0 {
+				body, _ = sjson.DeleteBytes(body, fmt.Sprintf("messages.%d.tool_calls", i))
+			}
+		}
+		lastIndex := len(messages) - 1
+		if !strings.Contains(messages[lastIndex].Get("content").String(), "Respond in the following locale") {
+			body, _ = sjson.SetBytes(body, "messages."+strconv.Itoa(lastIndex)+".content", messages[lastIndex].Get("content").String()+"Respond in the following locale: "+os.Getenv("CHAT_LOCALE")+".")
+		}
+	}
+
 	body, _ = sjson.DeleteBytes(body, "intent")
 	body, _ = sjson.DeleteBytes(body, "intent_threshold")
 	body, _ = sjson.DeleteBytes(body, "intent_content")
diff --git a/internal/controller/copilot/code_completions.go b/internal/controller/copilot/code_completions.go
index e896c7dc0a951595a2d3d619386570a9db945d78..6f438a8a8bcbbab68e7db6083a69fd06a9f9ae09 100644
--- a/internal/controller/copilot/code_completions.go
+++ b/internal/controller/copilot/code_completions.go
@@ -17,8 +17,9 @@ import (
 	"net/http"
 	"os"
 	"strconv"
-	"strings"
 	"time"
+	"math/rand"
+	"strings"
 )
 
 // codeCompletions 代码补全
@@ -49,7 +50,25 @@ func codeCompletions(c *gin.Context) {
 	}
 
 	req.Header.Set("Content-Type", "application/json")
-	req.Header.Set("Authorization", "Bearer "+os.Getenv("CODEX_API_KEY"))
+
+	apiKeys := strings.Split(os.Getenv("CODEX_API_KEY"), ",")
+
+	// 检查 apiKeys 是否有效
+	if len(apiKeys) == 0 || (len(apiKeys) == 1 && apiKeys[0] == "") {
+		abortCodex(c, http.StatusInternalServerError)
+		return
+	}
+
+
+	randGen := rand.New(rand.NewSource(time.Now().UnixNano()))
+	selectedKey := strings.TrimSpace(apiKeys[randGen.Intn(len(apiKeys))])
+
+	if selectedKey == "" {
+		abortCodex(c, http.StatusInternalServerError)
+		return
+	}
+
+	req.Header.Set("Authorization", "Bearer "+selectedKey)
 
 	client := &http.Client{
 		Timeout: 30 * time.Second,
diff --git a/internal/controller/copilot/get_copilot_internal_v2_token.go b/internal/controller/copilot/get_copilot_internal_v2_token.go
index 475581ae2118425c8b4350d7031f344be62d4517..155e898f9dc81c620a2d38c94dcd537cd5857561 100644
--- a/internal/controller/copilot/get_copilot_internal_v2_token.go
+++ b/internal/controller/copilot/get_copilot_internal_v2_token.go
@@ -11,6 +11,8 @@ import (
 	"ripper/internal/cache"
 	"strconv"
 	"time"
+	"math/rand"
+	"strings"
 )
 
 // getDisguiseCopilotInternalV2Token 返回伪装的token
@@ -69,7 +71,13 @@ func getDisguiseCopilotInternalV2Token(ctx *gin.Context) {
 
 // getCopilotInternalV2Token 获取github copilot官方token
 func getCopilotInternalV2Token(c *gin.Context) {
-	ghu := os.Getenv("COPILOT_GHU_TOKEN")
+	ghuTokens := strings.Split(os.Getenv("COPILOT_GHU_TOKEN"), ",")
+	if len(ghuTokens) == 0 {
+		return
+	}
+
+	rand.Seed(time.Now().UnixNano())
+	ghu := ghuTokens[rand.Intn(len(ghuTokens))]
 	if ghu == "" {
 		log.Println("ghu token is empty")
 		c.JSON(http.StatusUnprocessableEntity, gin.H{
@@ -113,7 +121,7 @@ func getCopilotInternalV2Token(c *gin.Context) {
 		return
 	}
 	if resp.StatusCode != 200 {
-		errorMsg := "获取 Token 失败, 当前 ghu_token 账户可能并未订阅 github copilot 服务!"
+		errorMsg := "获取 Token 失败, 当前 ghu_token 账户可能并未订阅 github copilot 服务!" + ghu
 		c.JSON(resp.StatusCode, gin.H{"error": errorMsg})
 		log.Println(errorMsg)
 		return
diff --git a/internal/controller/copilot/github_completions.go b/internal/controller/copilot/github_completions.go
index a585d9463ae91eafaec6198753455b58aaf31e90..3c03ae5e6a6225fa81b94037ad22aaee2da7c685 100644
--- a/internal/controller/copilot/github_completions.go
+++ b/internal/controller/copilot/github_completions.go
@@ -16,6 +16,8 @@ import (
 	"ripper/internal/cache"
 	"strconv"
 	"time"
+	"math/rand"
+	"strings"
 )
 
 // codexCompletions 全代理GitHub的代码补全接口
@@ -143,7 +145,13 @@ func chatsCompletions(c *gin.Context) {
 
 // getAuthToken 获取GitHub Copilot的临时Token
 func getAuthToken() (string, error) {
-	ghu := os.Getenv("COPILOT_GHU_TOKEN")
+	ghuTokens := strings.Split(os.Getenv("COPILOT_GHU_TOKEN"), ",")
+	if len(ghuTokens) == 0 {
+		return "", fmt.Errorf("COPILOT_GHU_TOKEN environment variable is empty or malformed")
+	}
+
+	rand.Seed(time.Now().UnixNano())
+	ghu := ghuTokens[rand.Intn(len(ghuTokens))]
 	cacheKey := "github:copilot_internal_v2_token:" + ghu
 	token, err := cache.Get(cacheKey)
 	if err != nil {
@@ -181,7 +189,7 @@ func getAuthToken() (string, error) {
 	defer res.Body.Close()
 
 	if res.StatusCode != http.StatusOK {
-		return "", fmt.Errorf("获取 Token 失败")
+		return "", fmt.Errorf("获取 Token 失败" + ghu)
 	}
 
 	body, err := ioutil.ReadAll(res.Body)