# GPT-5.6 gets better at cybersecurity

> Source: <https://www.helpnetsecurity.com/2026/06/29/openai-gpt-5-6-models-preview/>
> Published: 2026-06-29 09:13:39+00:00

OpenAI has started rolling out the GPT-5.6 series models in limited preview to a small group of trusted partners through the API and Codex. The series includes Sol as the flagship model, Terra as a balanced option, and Luna as the fastest and most cost-efficient model. The rollout is being coordinated with the U.S. government before expanding to ChatGPT, Codex, and API users in the coming weeks. “GPT-5.6 Sol launches with our most robust safety … [More ](https://www.helpnetsecurity.com/2026/06/29/openai-gpt-5-6-models-preview/)

The post [GPT-5.6 gets better at cybersecurity](https://www.helpnetsecurity.com/2026/06/29/openai-gpt-5-6-models-preview/) appeared first on [Help Net Security](https://www.helpnetsecurity.com).