diff --git a/llm/aicore_test.go b/llm/aicore_test.go
index cb8d9de..0a8c9de 100644
--- a/llm/aicore_test.go
+++ b/llm/aicore_test.go
@@ -206,8 +206,8 @@ func TestAICoreClient_CompleteAnthropic(t *testing.T) {
 		if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
 			t.Fatalf("decode request: %v", err)
 		}
-		if req.Model != "anthropic--claude-4.6-sonnet" {
-			t.Errorf("expected model name in request")
+		if req.AnthropicVersion != "2023-06-01" {
+			t.Errorf("expected anthropic_version in request")
 		}
 		if req.System != "You are helpful" {
 			t.Errorf("expected system prompt: %q", req.System)