An OpenAI benchmark paper suggests that the Pro tier of GPT-5.6 could ship in three variants. That would be the first major change to ChatGPT Pro's structure since the plan launched.

OpenAI has announced a limited preview of its new GPT-5.6 Sol, which the AI giant describes as its most capable model for cybersecurity.

OpenAI’s GPT-5.6 preview gives developers more than a stronger model. It changes how SaaS teams should think about routing, fallback, safety checks, caching, and model dependency.