diff --git a/relay/adaptor/openai/adaptor.go b/relay/adaptor/openai/adaptor.go
index 57940558..55c05e0c 100644
--- a/relay/adaptor/openai/adaptor.go
+++ b/relay/adaptor/openai/adaptor.go
@@ -86,7 +86,7 @@ func (a *Adaptor) DoResponse(c *gin.Context, resp *http.Response, meta *meta.Met
 	if meta.IsStream {
 		var responseText string
 		err, responseText, usage = StreamHandler(c, resp, meta.Mode)
-		if usage == nil {
+		if usage == nil || usage.TotalTokens == 0 {
 			usage = ResponseText2Usage(responseText, meta.ActualModelName, meta.PromptTokens)
 		}
 	} else {