diff --git a/crates/bedrock/src/models.rs b/crates/bedrock/src/models.rs
index e13ddfbe5be1630f9078ae8ac0f867d26d113ec2..ee1909b57c1bff8eba092dc5410f6cca16975341 100644
--- a/crates/bedrock/src/models.rs
+++ b/crates/bedrock/src/models.rs
@@ -756,6 +756,8 @@ impl Model {
                 Self::ClaudeHaiku4_5
                 | Self::ClaudeSonnet4_5
                 | Self::ClaudeSonnet4_5Thinking
+                | Self::ClaudeSonnet4_6
+                | Self::ClaudeSonnet4_6Thinking
                 | Self::Nova2Lite,
                 "jp",
             ) => Ok(format!("{}.{}", region_group, model_id)),