OpenAI has published the GPT-5.6 Preview System Card, outlining the safety testing and deployment safeguards for its new family of models: Sol, Terra, and Luna. The report describes extensive evaluations across cybersecurity, biological and chemical risks, model autonomy, and misuse prevention.
OpenAI classifies the models as High capability for cybersecurity and biological risk under its Preparedness Framework, while stating they remain below the highest risk threshold.
The company also explains its layered mitigation strategy, including red teaming, automated evaluations, policy enforcement, and staged deployment through a limited trusted-partner preview before broader public availability.
