Free ChatGPT Upgrades: GPT-5.6 Luna, Think Mode, Unlimited Text

Free ChatGPT users are getting significant upgrades this week. GPT-5.6 Luna is becoming the default for free and Go users. Next week, unlimited text chats and a "Think" button will arrive. Unlimited text is a major change, though limits still apply to images and file uploads. Accuracy is also improving, with factual errors reportedly 62% less common with Luna compared to the previous version in internal testing. Paid Plus and Pro subscribers now have GPT-5.6 Sol, offering both quick answers and deeper reasoning, along with a slider to control response complexity. Sol also aims to reduce unnecessary detail and adjust answer length based on the task. The removal of the text cap for free users could lead to more employee use of personal AI accounts at work. This raises new questions for channel partners regarding workplace AI use, security, and potential paid AI services.