The release of ChatGPT 5.6 marks a shift toward an objective-driven approach called “AI 2.0,” moving beyond task-based systems. GPT-5.6 introduces three distinct model variants: Sol, Terra, and Luna. The Sol variant is optimized for intricate workflows requiring exceptional precision, while Luna offers a cost-efficient solution for simpler tasks. A new `/goal` functionality enhances alignment with user objectives, improving efficiency and success rates in complex scenarios. Performance benchmarks highlight strengths in planning and intent recovery, with Sol excelling in high-demand tasks and Luna offering cost-effective solutions for simpler needs. Sol is the most powerful model for high-demand tasks, Terra is a mid-tier option balancing cost and performance for general-purpose applications, and Luna is the smallest, most cost-efficient variant for simpler tasks. These models incorporate advancements in planning, intent recovery, and instruction-following.