OpenAI’s GPT-5.5 Rollout Splits Into a New ChatGPT Default and a Limited Cyber Model
OpenAI has made GPT-5.5 Instant the default ChatGPT model and opened GPT-5.5-Cyber in limited preview for vetted defenders. Here is what is confirmed, what remains unconfirmed, and what users, developers, enterprises, and security teams should check now.
Tovren Editorial