ChatGPT gives free users unlimited text chats while improving its flagship model

OpenAI Supercharges ChatGPT: Unlimited Free Chats, Smarter AI Models, and Enhanced Control

OpenAI is rolling out significant enhancements to ChatGPT, revolutionizing the user experience for both free and premium subscribers. The biggest news for budget-conscious users is the introduction of **unlimited text chats** for the free version and the entry-level Go paid tier, eliminating previous caps and frustrating model downgrades. This massive update also includes a substantial AI model upgrade and new control features, while premium users benefit from a more precise and robust flagship AI.

Unlimited AI Power for Everyone: Introducing GPT-5.6 Luna

Users on the free and Go tiers of ChatGPT are set to receive a major boost. Starting next week, these users will enjoy truly **unlimited text chats**, a move designed to make advanced AI more accessible than ever before. Critically, these chats will no longer automatically switch to a lesser model during heavy usage. Instead, OpenAI is upgrading the default AI engine for free and Go users to **GPT-5.6 Luna**, the smallest yet powerful member of the new GPT-5.6 series. This replaces the now "ancient" (in AI terms) GPT-5.5 Instant, promising a noticeable leap in conversational quality and intelligence. The transition to GPT-5.6 Luna is expected to occur this week. Next week will also introduce a novel "Think" button for free and Go users. This innovative feature grants users the ability to influence the "thought" process ChatGPT applies to its responses, offering a new layer of customization. While text chats become limitless, it's important to note that restrictions on file uploads and image generation will remain for free and Go users.

Flagship AI Refined: GPT-5.6 Sol Gets Smarter for Premium Users

OpenAI hasn't forgotten its premium subscribers. The flagship **GPT-5.6 Sol** model, exclusively available to Plus and Pro tier members, is receiving a targeted suite of improvements. These updates are engineered to deliver **more direct responses, tighter formatting, and concise information**, actively avoiding unnecessary detail. For users with quick queries, the new Sol model will provide a **direct answer with essential context**. For complex tasks like multi-step planning or in-depth research, it will generate a fuller, more comprehensive response that still keeps the primary recommendation clearly articulated. A key focus of the new GPT-5.6 Sol is enhanced accuracy. OpenAI states the model is "designed to make fewer mistakes," particularly concerning crucial data points such as numbers, dates, sources, rules, and assumptions. Internal evaluations highlight this improvement: financial, medical, and legal prompts requiring factual precision showed a remarkable **68% reduction in responses containing at least one factual error** with the new GPT-5.6 Sol compared to its predecessor, GPT-5.5 Instant. The "Think" button feature will also be available to Plus and Pro subscribers, presenting as a slider that adjusts from "instant" to "pro" levels of "thinking" while maintaining a consistent tone and style. This flexibility allows users to quickly tackle "everyday questions" or dial up the AI's processing power for more demanding tasks like "planning, research, writing, coding, or decisions that need more thought."

It's worth noting that this particular update to GPT-5.6 Sol is "optimized for everyday chats" and will exclusively enhance the core ChatGPT experience. The version of GPT-5.6 Sol powering specialized applications like ChatGPT Work and Codex remains unchanged by these updates. Source