GPT-5.6: Frontier intelligence that scales with your ambition

OpenAI released the GPT-5.6 family of models, including Sol (flagship), Terra (balanced), and Luna (cost-efficient), which achieve better performance than competing models while using fewer tokens (units of text the AI processes) and costing less money. The models were trained with safeguards (protective measures against misuse) tested through human red teaming (security experts trying to break it) and automated testing before general release. GPT-5.6 Sol also introduces enhanced coding abilities and a new "ultra" setting that coordinates multiple agents (independent AI systems working in parallel) to handle complex tasks faster.