Improving GPT‑5.6 Sol in ChatGPT, expanding GPT‑5.6 Luna access for free users

OpenAI has improved GPT-5.6 Sol in ChatGPT, enhancing its performance and capabilities. This update also expands free access to GPT-5.6 Luna. The changes aim to improve user experience and provide more value to users. The update is available now for all users. No specific actions are required from users.