OpenAI announced new artificial intelligence models GPT-5.6 Sol, Terra and Luna. The cybersecurity-focused Sol model and other details are in our news.
OpenAI announced that it has expanded its artificial intelligence family with the announcement it made today. The company introduced three new models to the technology world, GPT-5.6 Sol, GPT-5.6 Terra and GPT-5.6 Luna.
In line with the request of the US administration, these new models are planned to be put into general use within the next month. Users will be able to access OpenAI’s newest technologies with these models developed for different needs.
Powerful Performance and Advanced Security
GPT-5.6 Sol, the fastest member of the series, draws especially attention with its capabilities in the field of cyber security. OpenAI emphasizes that this model is the most capable option they have developed to date in cyber security.
The model is equipped with very advanced security measures against misuse. It also has a special system powered by multiple spies to handle complex missions. UltraThere is also a version.
GPT-5.6 Sol sets a new standard in complex command-line workflows that require planning, iteration, and tool adaptation in Terminal-Bench 2.1 tests. According to the data shared by the company, Sol and Sol Ultra models manage to surpass their Competitors such as Claude Mythos 5 and Fable 5 in some tests.
Solutions for Different Needs
In its new series, OpenAI targets not only the most powerful model but also different usage scenarios. Positioned as a mid-range option terrawas designed specifically for users who want to manage high-volume business processes.

Developed for daily use scenarios LunaThe model stands out with its speed and affordable price stability. The company states that it weighs price-performance-oriented features in all new models.
With the launch of new models, it is aimed for users to have more specific tools for different workloads. In particular, performance increases are expected in a wide range of areas, from cyber security to daily practical work.
What do you think about this new GPT-5.6 series?