diff --git a/packages/opencode/src/provider/transform.ts b/packages/opencode/src/provider/transform.ts
index acccbd1c09f..6538848fead 100644
--- a/packages/opencode/src/provider/transform.ts
+++ b/packages/opencode/src/provider/transform.ts
@@ -26,6 +26,7 @@ export namespace ProviderTransform {
       case "@ai-sdk/amazon-bedrock":
         return "bedrock"
       case "@ai-sdk/anthropic":
+      case "@ai-sdk/google-vertex/anthropic":
         return "anthropic"
       case "@ai-sdk/google-vertex":
       case "@ai-sdk/google":