OpenAI has officially released its most advanced AI model series, GPT-5.6, to the public today. The series features three distinct tiers: Sol (flagship), Terra (mid-range), and Luna (fast/low-cost). The launch follows a month-long regulatory review by the U.S. Department of Commerce's Center for AI Standards and Innovation to assess national security risks, marking a new era of government-tech collaboration in AI deployment.
2026 has become the year of the 'Digital Colleague.' Industry shifts show a move away from simple chatbots toward autonomous agentic systems that can execute multi-step business workflows, write production-grade code, and manage supply chains without human intervention. Corporate adoption of these autonomous agents has jumped to over 78% of global organizations.
By mid-2026, the inference cost of running GPT-3.5-level models has dropped more than 280-fold compared to late 2022 levels, enabling the mass integration of AI into low-cost consumer electronics.
OpenAI's newly released GPT-5.6 series is categorized into three performance tiers. Which name is NOT part of this tier system?