222 OpenAI has begun a limited preview of GPT-5.6, introducing three AI models: Sol, Terra and Luna. The release matters because it is not only a product upgrade for ChatGPT, Codex and API users; it also shows how frontier AI access is being shaped by safety concerns, pricing pressure and government scrutiny. Sol is OpenAI’s flagship GPT-5.6 model, aimed at demanding work across coding, cybersecurity, biology and long-horizon agentic tasks. Terra is positioned as a balanced model for everyday work, while Luna is designed as the fastest and most affordable option for high-volume tasks. OpenAI says Terra has “competitive performance to GPT-5.5” while being twice cheaper, and Luna brings stronger capability at the company’s lowest cost. The most important detail is access. OpenAI said the GPT-5.6 family will first go to a small group of trusted partners after engagement with the US government. “At their request, we are starting with a limited preview,” the company said, adding that broader availability is planned in the coming weeks. Pricing also makes the launch significant for developers and enterprises. GPT-5.6 Sol costs $5 per 1 million input tokens and $30 per 1 million output tokens; Terra is priced at $2.50 input and $15 output; Luna costs $1 input and $6 output. OpenAI also says cached-input reads continue to receive a 90 percent discount. For businesses, the takeaway is clear: GPT-5.6 is a capability upgrade, a cost reset and a governance test. The winners will be teams that benchmark Sol, Terra and Luna against real workflows before moving critical systems. You Might Be Interested In Ad rates for Asia Cup India–Pakistan clash dip 15–20% Google and Accel launch $2M AI startup fund in India Anthropic’s $6 billion Decart talks put AI compute efficiency in focus Instagram plans subscription access for more AI use Is Your Brand Ready for the AI Shopping Revolution? EY’s CMO: “AI Makes Marketers Think Harder, Not Less”
