ChatGPT brings unlimited text chats to free users with GPT-5.6 Luna and a new think button expand access to AI tools.

ChatGPT brings unlimited text chats to free users with GPT-5.6 Luna

ChatGPT unlimited text chats for free users are now part of OpenAI’s latest update, giving people on the Free and Go plans more room to ask questions, write content, study, brainstorm, and hold longer conversations without hitting the usual text-message cap. The change is being rolled out alongside GPT-5.6 Luna, a smaller model designed to handle everyday conversations quickly and efficiently.

The update is particularly significant because free users previously faced usage limits on flagship models. After reaching the cap, ChatGPT could restrict access or switch users to a lighter model until the limit reset. OpenAI is now removing those limits for standard text chats, although the company says safeguards against abuse will continue to apply.

GPT-5.6 Luna becomes the default model

GPT-5.6 Luna will become the default model for ChatGPT Free and Go users, replacing GPT-5.5 Instant. OpenAI describes the model as a faster and more focused option for everyday interactions, making it suitable for common tasks such as drafting emails, summarising information, generating ideas, explaining concepts, and helping with basic coding.

The rollout is staggered. GPT-5.6 Luna is being introduced first, while unlimited text conversations and the new Think option are arriving separately. OpenAI has indicated that users may not see every feature immediately because availability can depend on the rollout schedule and account type.

New Think button for harder questions

Free and Go users will also receive a dedicated Think button. This feature allows users to ask GPT-5.6 Luna to spend more time working through a complicated question before responding. It could be useful for multi-step reasoning, technical explanations, planning, maths problems, and more detailed research tasks.

That gives free users a simpler way to choose between speed and deeper reasoning. Instead of using a more advanced model for every prompt, users can activate additional thinking only when a question genuinely requires it.

What remains limited

The word “unlimited” applies to text chats, not every ChatGPT feature. Limits will continue to apply to tools that consume more computing resources, including:

• File uploads.
• Image generation.
• Image and document analysis.
• Voice conversations.
• Other advanced tools and features.

OpenAI’s Free Tier FAQ also confirms that usage limits can still apply to GPT access, tools, and other capabilities available on free account.

Why the change matters

OpenAI says ChatGPT has crossed the 1 billion weekly user mark, making the free tier an important gateway to its wider AI ecosystem. Removing standard text limits could encourage more people to use ChatGPT for education, content creation, customer support, software development, and daily productivity.

For writers, students, and researchers, the practical difference may be substantial. A longer working session won’t have to stop simply because the account has reached its text allowance. However, users should still remember that unlimited access does not mean unlimited automated activity, and OpenAI’s abuse-prevention systems remain in place.

Summary: OpenAI is giving ChatGPT Free and Go users unlimited text chats powered by GPT-5.6 Luna. A new Think button will provide deeper reasoning for difficult prompts, while limits remain for uploads, image generation, voice, and other resource-intensive tools.