On August 6, 2026, OpenAI announced the release of an improved version of the GPT-5.6 Sol model. This version was optimized in terms of accuracy and consistency. Additionally, OpenAI expanded access for free users and introduced a new feature called GPT-5.6 Luna, allowing free users to enjoy unlimited daily conversation services.
ChatGPT has launched the improved version of GPT-5.6 Sol, enhancing accuracy and consistency, and expanding free access for users as well as providing GPT-5.6 Luna with unlimited daily conversations.