ChatGPT Free: Unlimited Text Chats & New GPT-5.6 Luna

Free users of ChatGPT can now have unlimited text chats. This change was announced by OpenAI. Previously, free users often hit usage limits, especially without a paid subscription. Now, these limits are removed for text-only conversations. What's interesting is that both free and paying users are getting a new default model called GPT-5.6 Luna. This new model has performed better, with 62% fewer factual errors compared to the previous one. A new "Think" button will also be available, designed to help the AI process harder questions. For Plus and Pro subscribers, there's an upgrade to GPT-5.6 Sol. This model is tweaked for everyday tasks like web research and decision-making, aiming for more focused answers. A slider tool will also let users adjust the technical power of their prompts. The new Luna model is rolling out this week, with unlimited chats and other features expected next week. The bottom line is that while unlimited chats offer more access, there are ongoing concerns about excessive AI use potentially impacting mental health for some vulnerable groups.