diff --git a/relay/channel/aws/constants.go b/relay/channel/aws/constants.go
index 078155f6..64c7b747 100644
--- a/relay/channel/aws/constants.go
+++ b/relay/channel/aws/constants.go
@@ -46,7 +46,7 @@ var awsModelCanCrossRegionMap = map[string]map[string]bool{
 		"ap": true,
 		"eu": true,
 	},
-	"apac.anthropic.claude-sonnet-4-20250514-v1:0": {
+	"anthropic.claude-sonnet-4-20250514-v1:0": {
 		"us": true,
 		"ap": true,
 		"eu": true,