diff --git a/controller/relay-claude.go b/controller/relay-claude.go
index 1b72b47d..ca7a701a 100644
--- a/controller/relay-claude.go
+++ b/controller/relay-claude.go
@@ -204,6 +204,7 @@ func claudeHandler(c *gin.Context, resp *http.Response, promptTokens int, model
 		}, nil
 	}
 	fullTextResponse := responseClaude2OpenAI(&claudeResponse)
+	fullTextResponse.Model = model
 	completionTokens := countTokenText(claudeResponse.Completion, model)
 	usage := Usage{
 		PromptTokens:     promptTokens,
diff --git a/controller/relay-gemini.go b/controller/relay-gemini.go
index 2458458e..523018de 100644
--- a/controller/relay-gemini.go
+++ b/controller/relay-gemini.go
@@ -287,6 +287,7 @@ func geminiChatHandler(c *gin.Context, resp *http.Response, promptTokens int, mo
 		}, nil
 	}
 	fullTextResponse := responseGeminiChat2OpenAI(&geminiResponse)
+	fullTextResponse.Model = model
 	completionTokens := countTokenText(geminiResponse.GetResponseText(), model)
 	usage := Usage{
 		PromptTokens:     promptTokens,
diff --git a/controller/relay.go b/controller/relay.go
index 15021997..b7906d08 100644
--- a/controller/relay.go
+++ b/controller/relay.go
@@ -206,6 +206,7 @@ type OpenAITextResponseChoice struct {
 
 type OpenAITextResponse struct {
 	Id      string                     `json:"id"`
+	Model   string                     `json:"model,omitempty"`
 	Object  string                     `json:"object"`
 	Created int64                      `json:"created"`
 	Choices []OpenAITextResponseChoice `json:"choices"`