diff --git a/internal/controller/copilot/agents.go b/internal/controller/copilot/agents.go
index e543364..9c6a0d1 100644
--- a/internal/controller/copilot/agents.go
+++ b/internal/controller/copilot/agents.go
@@ -4,6 +4,7 @@ import (
 	"github.com/gin-gonic/gin"
 	"github.com/gofrs/uuid"
 	"net/http"
+	"os"
 )
 
 // GetAgents 获取代理列表
@@ -11,6 +12,8 @@ func GetAgents(c *gin.Context) {
 	requestID := uuid.Must(uuid.NewV4()).String()
 	c.Header("x-github-request-id", requestID)
 
+	modelName := os.Getenv("CODEX_API_MODEL_NAME")
+
 	c.JSON(http.StatusOK, gin.H{
 		"agents": []gin.H{
 			{
@@ -19,10 +22,10 @@ func GetAgents(c *gin.Context) {
 				"description":        "Ask questions and get answers about your codebase.",
 				"version":            "1.0.0",
 				"publisher":          "github",
-				"model":              "gpt-4o-mini-2024-07-18",
+				"model":              modelName,
 				"capabilities":       "workspace",
-				"default_model":      "gpt-4o-mini-2024-07-18",
-				"capabilities_model": "gpt-4o-mini-2024-07-18",
+				"default_model":      modelName,
+				"capabilities_model": modelName,
 			},
 		},
 	})
diff --git a/internal/controller/copilot/chat_completions.go b/internal/controller/copilot/chat_completions.go
index 8994439..d2dd97b 100644
--- a/internal/controller/copilot/chat_completions.go
+++ b/internal/controller/copilot/chat_completions.go
@@ -170,19 +170,21 @@ func ChatCompletions(c *gin.Context) {
 
 // vs2022FirstChatTemplate is a template for the first chat completion response
 func vs2022FirstChatTemplate(c *gin.Context) {
-	fixedOutput := `data: {"id":"f6202f6f-9d13-4518-b34f-65e945b0a1a2","object":"chat.completion.chunk","model":"gpt-4o-mini-2024-07-18","created":1734752124,"choices":[{"index":0,"delta":{"role":"assistant","content":""},"finish_reason":null}]}
+	modelName := os.Getenv("CODEX_API_MODEL_NAME")
+	template := `data: {"id":"f6202f6f-9d13-4518-b34f-65e945b0a1a2","object":"chat.completion.chunk","model":"%s","created":1734752124,"choices":[{"index":0,"delta":{"role":"assistant","content":""},"finish_reason":null}]}
 
-data: {"id":"b2ab39cb-9a84-4006-b470-93a5965c6d69","object":"chat.completion.chunk","model":"gpt-4o-mini-2024-07-18","created":1734752124,"choices":[{"index":0,"delta":{"role":"assistant","content":""},"finish_reason":null}]}
+data: {"id":"b2ab39cb-9a84-4006-b470-93a5965c6d69","object":"chat.completion.chunk","model":"%s","created":1734752124,"choices":[{"index":0,"delta":{"role":"assistant","content":""},"finish_reason":null}]}
 
-data: {"id":"df5f9ce7-b653-4ffb-8d92-e21856ce1ffc","object":"chat.completion.chunk","model":"gpt-4o-mini-2024-07-18","created":1734752124,"choices":[{"index":0,"delta":{"role":"assistant","content":"Explain"},"finish_reason":null}]}
+data: {"id":"df5f9ce7-b653-4ffb-8d92-e21856ce1ffc","object":"chat.completion.chunk","model":"%s","created":1734752124,"choices":[{"index":0,"delta":{"role":"assistant","content":"Explain"},"finish_reason":null}]}
 
-data: {"id":"fb58d66e-bb16-43f2-8470-2de0c8662533","object":"chat.completion.chunk","model":"gpt-4o-mini-2024-07-18","created":1734752124,"choices":[{"index":0,"delta":{"role":"assistant","content":""},"finish_reason":null}]}
+data: {"id":"fb58d66e-bb16-43f2-8470-2de0c8662533","object":"chat.completion.chunk","model":"%s","created":1734752124,"choices":[{"index":0,"delta":{"role":"assistant","content":""},"finish_reason":null}]}
 
-data: {"id":"22ea16e2-766f-4b10-84d0-68399abc9181","object":"chat.completion.chunk","model":"gpt-4o-mini-2024-07-18","created":1734752124,"choices":[{"index":0,"delta":{"role":"assistant","content":""},"finish_reason":"stop"}]}
+data: {"id":"22ea16e2-766f-4b10-84d0-68399abc9181","object":"chat.completion.chunk","model":"%s","created":1734752124,"choices":[{"index":0,"delta":{"role":"assistant","content":""},"finish_reason":"stop"}]}
 
 data: [DONE]
 
 `
-	_, _ = c.Writer.WriteString(fixedOutput)
+	formattedOutput := fmt.Sprintf(template, modelName, modelName, modelName, modelName, modelName)
+	_, _ = c.Writer.WriteString(formattedOutput)
 	c.Writer.Flush()
 }