GPT‑5.6 is here and promises frontier power at a fraction of the cost
OpenAI announces in an official blog post that GPT‑5.6 is now generally available, following the limited preview it launched several weeks earlier. The family consists of three tiers: the flagship model Sol, the balanced option for everyday work Terra; and the most cost-efficient version Luna. According to OpenAI, all three models outperform rivals such as …