ChatGPT Free Users: Unlimited Text Chats Now Available

OpenAI has announced that ChatGPT free users can now have unlimited text-based conversations. This update comes as the AI chatbot now has over one billion weekly active users. Here's the thing: The new feature uses the GPT-5.6 Luna model, replacing GPT-5.5 for Free and Go users. These users also get a "Think" button for higher reasoning on complex questions. What's interesting is that while text chats are unlimited, other features like file uploads and voice interactions still have separate limits. Plus and Pro subscribers also see improvements. They gain access to the GPT-5.6 Sol model, which is optimized for tasks like answering questions and web research. OpenAI says this model delivers more concise and robust responses. These premium users also get a new thinking slider to control reasoning effort. The bottom line: OpenAI's internal evaluation shows both new models significantly reduce factual errors, making ChatGPT responses more reliable and accurate for everyone.