ChatGPT brings unlimited text chats to free users

OpenAI has made unlimited text chats available to free users of ChatGPT, powered by the new GPT-5.6 Luna model, which reduces factual errors by 62% compared to GPT-5.5. Paid Plus and Pro subscribers receive GPT-5.6 Sol, which cuts errors by 68% and includes a 'thinking slider' for adjustable reasoning depth.

TechCrunch https://techcrunch.com/2026/08/06/openai-brings-unlimited-chatgpt-text-chats-to-free-users/ ChatGPT brings unlimited text chats to free users Which summary reads better? Pick one — models revealed after.Both summaries are AI-generated. GPT-5.6 Luna reduces factual errors by 62% over GPT-5.5 for free users, enabling more reliable unlimited text chats. This allows free-tier services to handle complex queries with higher accuracy, reducing the need for paid tiers for basic fact-based tasks while maintaining quality. Free users now get unlimited text chats on GPT-5.6 Luna, cutting factual errors by 62% vs GPT-5.5, while Plus/Pro users get GPT-5.6 Sol with 68% fewer errors and a "thinking slider" for adjustable reasoning depth. This means your production agents can rely on cheaper, higher-accuracy models for most text tasks, but you’ll need to retest rate limits on non-text features files, images, voice and validate whether the new models’ compact answers break existing prompt chains or output parsers.