Meet GPT-Red: an LLM super-hacker OpenAI built to make its models safer

Jul 15, 2026

OpenAI has developed GPT-Red, a large language model designed to act as a super-hacker sparring partner to improve the security of its other models. According to the company, training its latest flagship model, GPT-5.6, against GPT-Red resulted in its most robust release yet.

Why it matters: This approach uses one LLM to automatically red-team another, representing a novel method for improving AI model robustness and safety.

Full story at: MIT Technology Review / AI ↗