SynopsisOpenAI has unveiled GPT-5.6, its latest AI model family with Sol, Terra and Luna. The models will roll out gradually across ChatGPT, the API and Codex, with Sol adding Max and Ultra modes for advanced reasoning.ReutersOpenAI has introduced GPT-5.6, its latest generation of artificial intelligence (AI) models. Instead of launching a single model, the company has released a family of three models, Sol, Terra and Luna, designed for different levels of performance, speed and cost. However, unlike previous launches, GPT-5.6 is not yet available to all users. The company is rolling it out first to a small group of trusted partners before making it available more broadly through ChatGPT, the API and Codex.OpenAI’s new AI models and their capabilities:The flagship model, GPT-5.6 Sol, is designed for tasks that require deeper reasoning and problem-solving. OpenAI says it performs better than its earlier models across areas such as coding, biology and cybersecurity. The company has also introduced a new "Max" mode, which allows the model to spend more time thinking before generating an answer. Another addition is "Ultra" mode, which uses multiple AI agents working together to solve more complex problems that would be difficult for a single model to handle. Alongside Sol, OpenAI has launched GPT-5.6 Terra and GPT-5.6 Luna. Terra is aimed at users who need strong performance at a lower cost, with OpenAI claiming it offers capabilities close to GPT-5.5 while costing roughly half as much. On the other hand, Luna is the smallest and fastest model in the family and is designed for applications that need quick responses and can process large numbers of requests efficiently.Why OpenAI is limiting ChatGPT-5.6 access: ...moreElevate your knowledge and leadership skills at a cost cheaper than your daily tea.Subscribe Now