Woofun AI reports that OpenAI has introduced GPT-5.6, comprising the flagship Sol model for agent tasks, the cost-efficient Terra, and the high-capacity Luna. Sol secured 88.8% on Terminal-Bench 2.1 and demonstrated superior performance in ExploitBench security tasks using fewer tokens. The release includes a robust security framework validated through red team tests equivalent to 700,000 A100 GPU hours. Access remains limited to trusted Codex and API partners per U.S. government requirements, with full public availability expected in several weeks.