OpenAI launches GPT-5.6 Sol with computer-use and cybersecurity SOTA

GPT-5.6 Sol sets a new state-of-the-art on the "The Last Ones" cyber range and achieves 7.8% on ARC-AGI-3, the first verified frontier model to beat an ARC-AGI-3 game. Codex is now integrated into ChatGPT for in-chat coding, and the model can use desktop apps and browsers to complete tasks.