diff --git a/relay/channel/aws/constants.go b/relay/channel/aws/constants.go
index 848bb7eac..54ab32c8c 100644
--- a/relay/channel/aws/constants.go
+++ b/relay/channel/aws/constants.go
@@ -16,7 +16,7 @@ var awsModelIDMap = map[string]string{
 	"claude-sonnet-4-5-20250929": "anthropic.claude-sonnet-4-5-20250929-v1:0",
 	"claude-haiku-4-5-20251001":  "anthropic.claude-haiku-4-5-20251001-v1:0",
 	"claude-opus-4-5-20251101":   "anthropic.claude-opus-4-5-20251101-v1:0",
-	"claude-opus-4-6":            "anthropic.claude-opus-4-6-v1:0",
+	"claude-opus-4-6":            "anthropic.claude-opus-4-6-v1",
 	// Nova models
 	"nova-micro-v1:0":   "amazon.nova-micro-v1:0",
 	"nova-lite-v1:0":    "amazon.nova-lite-v1:0",
@@ -80,7 +80,7 @@ var awsModelCanCrossRegionMap = map[string]map[string]bool{
 		"ap": true,
 		"eu": true,
 	},
-	"anthropic.claude-opus-4-6-v1:0": {
+	"anthropic.claude-opus-4-6-v1": {
 		"us": true,
 		"ap": true,
 		"eu": true,