OpenAI announces a new GPT-5.6 model family that includes three models: Sol, Terra, and Luna. Multiple outlets report that OpenAI is starting with a limited preview released to a small, vetted group of users or partners rather than opening full access. The rollout is coordinated with the U.S. government, including an engagement described as being requested by Washington, and is expected to expand to broader availability in subsequent weeks.
Sol is described as the flagship model with advanced capabilities, with several sources emphasizing improvements relevant to cybersecurity. While details vary in presentation, coverage agrees that Sol supports stronger reasoning and multi-agent style functions and is positioned as delivering robust safety. Terra is presented as a mid-range model intended for everyday or general work, balancing performance and efficiency. Luna is characterized as a faster, lower-cost option optimized for speed and affordability.
Reports also state that the preview is offered through channels such as the API and Codex, with later expansion planned to additional OpenAI products including ChatGPT and wider API access.
