ChatGPT brings unlimited text chats to free users

Free and Go users

OpenAI said that ChatGPT free and Go users are also getting a new “Think” button for complex queries.

OpenAI is removing limits on text-based chats for all users on ChatGPT, which recently crossed the 1 billion weekly user mark, the company announced today. The new GPT-5.6 Luna model will power this experience and will be the default model for Free and Go users, replacing GPT-5.5.

Both users will also get a new “Think” button that lets them select higher reasoning power for complex questions. OpenAI said that there will still be separate limits for:

• files
• images
• voice
• image generation

Plus and Pro users

The update brings changes for Plus and Pro users as well. They’ll gain access to an upgraded GPT-5.6 Sol model that’s better for quick tasks such as:

• questions
• web research
• advice
• planning
• writing
• making decisions

The company noted that this new model will give more compact and robust answers. (Notably, this is a separate version from GPT-5.6 Sol used for Codex and Work, which is unchanged.)

ChatGPT Plus and Pro users