OpenAI has launched its latest family of models, GPT-5.6, which includes three variants: Sol, Terra, and Luna. These models are designed to improve efficiency in various applications, including enterprise work, coding, and scientific research, with Sol being highlighted as the most efficient coding model available.
The new models also emphasize cybersecurity, with GPT-5.6 being touted as the strongest in this area, capable of supporting defensive measures like threat modeling and code review. This release comes amid increased competition from other AI developers such as SpaceXAI and Meta.