๐ OpenAI launches GPT-5.6 in three tiers โ Sol, Terra, and Luna target every price point
OpenAI rolled out GPT-5.6 as a three-model family: Luna (fast), Terra (GPT-5.5 quality at lower cost), and Sol (flagship with a new Ultra subagent mode). The launch began with a staged rollout before going wide. OpenAI also shipped ChatGPT Work this month, letting non-technical users build docs, spreadsheets, and web apps in plain English. Which tier fits your workflow?