ChatGPT Free Users Get Unlimited Messages as GPT-5.6 Luna Arrives!

OpenAI is preparing a major change for millions of people using ChatGPT for free. The company has announced that Free and Go users will soon be able to have unlimited text-based conversations. At the same time, GPT-5.6 Luna will become the default model for the free ChatGPT experience, while a new "Think" option will give users a way to handle more complex questions.
The update comes as competition in the artificial intelligence industry continues to intensify. OpenAI is now expanding the capabilities available to users who do not have a paid ChatGPT subscription, with text messaging limits set to become a thing of the past.

ChatGPT's Free Tier Is Getting Unlimited Text Chats!

According to OpenAI, Free and Go users will be able to have unlimited text chats starting next week.
Until now, free ChatGPT users could encounter message limits after reaching a certain level of usage. The upcoming change will remove those restrictions specifically for standard text conversations.
That could make a significant difference for people who regularly use ChatGPT for studying, research, writing, coding, brainstorming or everyday questions.
However, there is an important distinction.

ChatGPT Is Not Becoming Completely Unlimited!

The new policy does not mean every ChatGPT feature will become unlimited for free users.
OpenAI is specifically expanding access to text conversations. Limits on features such as file uploads, image generation and other tools will remain in place.
In other words, it would be misleading to describe the update simply as "ChatGPT is now completely unlimited."
A more accurate description is that free ChatGPT users are getting unlimited text conversations.
OpenAI will also continue to enforce its existing safeguards designed to prevent abuse and misuse of the service.

GPT-5.6 Luna Is Coming to Free ChatGPT Users!

Another major part of the update is GPT-5.6 Luna.
The GPT-5.6 family includes models designed for different types of workloads. Luna is positioned as a particularly fast and cost-efficient model within the lineup.
With the new update, Luna will become the default model for the ChatGPT experience available to Free and Go users.
There is an important detail here, however.
Users will not need to open the model picker and manually select a separate "GPT-5.6 Luna" option. Luna will operate behind the scenes as part of the standard experience for free users.
OpenAI's documentation also indicates that GPT-5.6 Luna is not directly selectable from the standard ChatGPT model picker.
So reports suggesting that ChatGPT is getting a dedicated "Luna" button would be misleading.

ChatGPT Is Getting a New "Think" Option!

Free users are also getting another notable feature: Think.
The option is designed for situations where a question requires more reasoning. Instead of always prioritizing the fastest possible response, users will be able to ask ChatGPT to spend more effort working through a difficult problem.
This could be particularly useful for mathematics, coding, analysis, planning and tasks that require multiple steps.
The feature gives users more control over how ChatGPT approaches complex questions, rather than treating every request in exactly the same way.
According to OpenAI, the Think experience for these users will be powered by GPT-5.6 Luna.

GPT-5.5 Is Not Simply Disappearing!

The arrival of GPT-5.6 does not mean GPT-5.5 is being completely removed from ChatGPT.
OpenAI's current documentation indicates that GPT-5.5 Instant continues to serve as a fast option for everyday questions, while the different GPT-5.6 models are designed for specific use cases.
That means it would be inaccurate to say that "GPT-5.6 has completely replaced GPT-5.5."
The two model generations can continue to play different roles within OpenAI's product lineup.

Plus and Pro Users Are Getting GPT-5.6 Sol Improvements!

OpenAI is also updating the experience for paying customers.
ChatGPT Plus and Pro users are receiving improvements to GPT-5.6 Sol, with OpenAI focusing on areas such as accuracy, relevance and better control over how detailed responses should be.
The company is also introducing a new control that allows eligible users to adjust the model's reasoning level.
This gives users more flexibility. A simple task can be handled more quickly, while a complicated request can receive additional reasoning effort when needed.

Is the Gap Between Free and Paid ChatGPT Getting Smaller?

The new changes will undoubtedly make the free version of ChatGPT more capable.
Removing the text-message limit means free users will be able to rely on ChatGPT more heavily for everyday conversations and longer sessions.
However, the difference between free and paid plans is not disappearing.
Paid subscribers will continue to receive access to additional capabilities, more advanced reasoning options and different usage limits.
The update therefore does not make ChatGPT Plus or Pro obsolete. Instead, OpenAI is making the free tier significantly more useful.

When Will ChatGPT's Message Limit Be Removed?

OpenAI says that unlimited text conversations for Free and Go users will begin next week.
The rollout may not happen simultaneously for every account. As with many ChatGPT updates, OpenAI can introduce new features gradually.
Therefore, users should not necessarily expect the new option to appear in every account immediately.

Is ChatGPT Now Free and Unlimited?

This is likely to be one of the biggest questions among users.
No — not every ChatGPT feature is becoming unlimited.
The change specifically applies to text conversations.
Limits will continue to apply to features such as file uploads, image generation and other tools.
For people who primarily use ChatGPT through text, however, the difference could be substantial.
Users who previously had to wait for their message allowance to reset will soon be able to continue their standard text conversations without the same restriction.

Why Is OpenAI Making This Change?

The announcement comes at a time when competition between AI companies is becoming increasingly aggressive.
ChatGPT is competing with products such as Google Gemini, Anthropic's Claude and a growing number of other AI assistants. Companies are increasingly making advanced AI capabilities available to free users as they compete for market share and user loyalty.
Expanding unlimited text conversations could help OpenAI make ChatGPT an even more central tool for everyday AI use.
OpenAI says ChatGPT now has more than 1 billion weekly users, making any change to the free tier particularly significant.

What Does the Update Mean for ChatGPT Users?

OpenAI's latest move marks a major expansion of the free ChatGPT experience.
Free and Go users will soon be able to have unlimited text conversations, while GPT-5.6 Luna will become the default model for their standard ChatGPT experience. The new Think option will also provide a way to tackle more complicated questions with additional reasoning.
At the same time, limits on image generation, file uploads and other tools will remain.
In short, OpenAI is making free ChatGPT considerably more capable without completely eliminating the differences between free and paid subscriptions.
The biggest change is clear: ChatGPT's free users are getting unlimited text messaging.