OpenAI Drops GPT-5.6 Despite Trump Administration Delays

OpenAI has launched GPT-5.6, a new model suite, just hours after reports emerged that its release was staggered at the Trump administration's request. The suite includes three tiers: Sol, the flagship model; Terra, for high-volume work; and Luna, a fast and affordable everyday option. The models are designed to excel at coding, cybersecurity, and biology, with a particular strength in long-horizon agentic AI tasks. The release marks a notable moment of tension between the company and US regulatory pressures.