chatgpt-work

OpenAI released GPT-5.6 in three model tiers—Sol (flagship reasoning), Terra (mainstream), and Luna (instant)—positioning them against Anthropic's Claude models. The company claims GPT-5.6 Sol scores 53.6 on Agents' Last Exam, 13.1 points above Claude Fable 5, while completing tasks 61% faster. ChatGPT Work, a desktop productivity agent similar to Claude Cowork, launches simultaneously for Pro, Enterprise, and Edu users.