OpenAI has made a significant update to its popular ChatGPT platform by lifting all limits on text-based chats for free users. Starting today, everyone can enjoy unlimited conversations without restraint.

This change comes with the introduction of the new GPT-5.6 Luna model as the default engine for both Free and Go users, marking a step up from its predecessor, GPT-5.5.

For those on the Plus and Pro plans, there's even more exciting news. They now have access to an upgraded GPT-5.6 Sol model that provides more compact and robust answers, making quick tasks like web research or writing a breeze. Users can also tweak their responses by adjusting a thinking slider based on the complexity of the task.

According to OpenAI's internal evaluation, these new models have significantly reduced factual errors compared to previous versions. The GPT-5.6 Luna model has seen a 62% decrease in errors, while the GPT-5.6 Sol model saw an even more impressive 68% reduction.

With these updates rolling out over the next few days, it's clear that OpenAI is committed to enhancing user experience and ensuring accuracy. It will be fascinating to see how this new wave of capabilities impacts both casual users and professionals alike.