ChatGPT brings unlimited text chats to free users
OpenAI said that ChatGPT free and Go users are also getting a new think button for complex queries.
AI Summary
OpenAI is removing limits on text-based chats for all ChatGPT users, introducing the GPT-5.6 Luna model for Free and Go users and an upgraded GPT-5.6 Sol for Plus and Pro users. Free users will gain a "Think" button for complex queries, while Plus and Pro users get a thinking slider to adjust reasoning depth. The company reports significant reductions in factual errors with the new models.