diff --git a/common/config/config.go b/common/config/config.go
index a235a8df..591943ff 100644
--- a/common/config/config.go
+++ b/common/config/config.go
@@ -164,3 +164,6 @@ var UserContentRequestTimeout = env.Int("USER_CONTENT_REQUEST_TIMEOUT", 30)
 
 var EnforceIncludeUsage = env.Bool("ENFORCE_INCLUDE_USAGE", false)
 var TestPrompt = env.String("TEST_PROMPT", "Output only your specific model name with no additional text.")
+
+// OpenrouterProviderSort is used to determine the order of the providers in the openrouter
+var OpenrouterProviderSort = env.String("OPENROUTER_PROVIDER_SORT", "")
diff --git a/relay/adaptor/openai/adaptor.go b/relay/adaptor/openai/adaptor.go
index 03bd3c91..4e44e21b 100644
--- a/relay/adaptor/openai/adaptor.go
+++ b/relay/adaptor/openai/adaptor.go
@@ -94,12 +94,13 @@ func (a *Adaptor) ConvertRequest(c *gin.Context, relayMode int, request *model.G
 	case channeltype.OpenRouter:
 		includeReasoning := true
 		request.IncludeReasoning = &includeReasoning
-		if request.Provider == nil || request.Provider.Sort == "" {
+		if request.Provider == nil || request.Provider.Sort == "" &&
+			config.OpenrouterProviderSort != "" {
 			if request.Provider == nil {
 				request.Provider = &openrouter.RequestProvider{}
 			}
 
-			request.Provider.Sort = "throughput"
+			request.Provider.Sort = config.OpenrouterProviderSort
 		}
 	default:
 	}