diff --git a/internal/core/model_identity.go b/internal/core/model_identity.go
index 0d31948a..8a7eaebf 100644
--- a/internal/core/model_identity.go
+++ b/internal/core/model_identity.go
@@ -103,7 +103,7 @@ func normalizeCanonicalModel(providerID, rawModelID string, cfg ModelNormalizati
 		identity.LineageID = identity.Vendor + "/" + claude.lineage
 		identity.Confidence = claude.confidence
 		identity.Reason = claude.reason
-		identity.Canonical = "anthropic/claude-" + FirstNonEmpty(claude.variant, "unknown")
+		identity.Canonical = identity.Vendor + "/" + claude.lineage
 	case "gpt":
 		gpt := canonicalizeGPT(tokens)
 		identity.Vendor = FirstNonEmpty(identity.Vendor, "openai")
diff --git a/internal/core/model_identity_test.go b/internal/core/model_identity_test.go
index 85db889e..944fb322 100644
--- a/internal/core/model_identity_test.go
+++ b/internal/core/model_identity_test.go
@@ -9,6 +9,9 @@ func TestNormalizeCanonicalModel_ClaudeLineage(t *testing.T) {
 	if got.LineageID != "anthropic/claude-opus-4.6" {
 		t.Fatalf("lineage = %q, want anthropic/claude-opus-4.6", got.LineageID)
 	}
+	if got.Canonical != "anthropic/claude-opus-4.6" {
+		t.Fatalf("canonical = %q, want anthropic/claude-opus-4.6", got.Canonical)
+	}
 	if got.Confidence < 0.9 {
 		t.Fatalf("confidence = %.2f, want >= 0.9", got.Confidence)
 	}