# Your RLHF Pipeline Is Missing a Step. Here Is What Could Go Wrong. - Date: 2026-04-22 - Category: Artificial Intelligence A new ACL 2026 paper names a failure mode where both an AI model and its reward signal fail together — leaving no safety net. The fix reverses the standard training order, but it requires compute most teams cannot afford, and even then catches only 63.5% of vulnerabilities. ---