diff --git a/extensions/openai/openai-provider.live.test.ts b/extensions/openai/openai-provider.live.test.ts
index ab98fa058c6..ba7217f2536 100644
--- a/extensions/openai/openai-provider.live.test.ts
+++ b/extensions/openai/openai-provider.live.test.ts
@@ -109,11 +109,14 @@ function resolveLiveModelCase(modelId: string): LiveModelCase {
 }
 
 function resolveLiveModelCases(raw?: string): LiveModelCase[] {
-  const requested = raw
-    ?.split(",")
-    .map((value) => value.trim())
-    .filter(Boolean);
-  const modelIds = requested?.length ? requested : [...DEFAULT_LIVE_MODEL_IDS];
+  const requested: string[] = [];
+  for (const value of raw?.split(",") ?? []) {
+    const trimmed = value.trim();
+    if (trimmed.length > 0) {
+      requested.push(trimmed);
+    }
+  }
+  const modelIds = requested.length ? requested : [...DEFAULT_LIVE_MODEL_IDS];
   return [...new Set(modelIds)].map((modelId) => resolveLiveModelCase(modelId));
 }