Improving GPT‑5.6 Sol in ChatGPT—and expanding access to GPT-5.6 Luna for free users

OpenAI is removing text message limits for free ChatGPT users, allowing unlimited access to standard conversations starting next week. Additionally, these users will gain access to a new think button designed to process more complex queries. This shift reduces previous restrictions on free-tier usage, making advanced AI capabilities more accessible to a wider audience.