What building Shippy taught us about building agents

Model Routing Is Simple. Until It Isn’t.

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

OpenAI has built an LLM super-hacker called GPT-Red that it uses as a sparring partner to help its other models boost their defenses against cyberattacks. Last week the company released the latest version of its flagship LLM, GPT-5. 6. OpenAI says that training it against GPT-Red made the model its