diff --git a/src/utils/auth.ts b/src/utils/auth.ts
index aa722cf07..2e3168fa4 100644
--- a/src/utils/auth.ts
+++ b/src/utils/auth.ts
@@ -117,6 +117,8 @@ export function isAnthropicAuthEnabled(): boolean {
     isEnvTruthy(process.env.CLAUDE_CODE_USE_BEDROCK) ||
     isEnvTruthy(process.env.CLAUDE_CODE_USE_VERTEX) ||
     isEnvTruthy(process.env.CLAUDE_CODE_USE_FOUNDRY) ||
+    isEnvTruthy(process.env.CLAUDE_CODE_USE_COSTRICT) ||
+    (settings as any).modelType === 'costrict' ||
     (settings as any).modelType === 'openai' ||
     (settings as any).modelType === 'gemini' ||
     !!process.env.OPENAI_BASE_URL ||