OpenAI’s GPT‑Red Scales Prompt Injection Red‑Teaming
🛡️ OpenAI revealed GPT‑Red, an internal automated red‑teaming model that simulates human adversaries to discover prompt injection vulnerabilities at scale. GPT‑Red iteratively probes and refines attacks against production models, helping harden GPT‑5.6 Sol and reduce prompt injection failures by 6× versus GPT‑5.5. OpenAI uses self‑play reinforcement learning to train both attacker and defender models while keeping GPT‑Red segregated to avoid misuse.
