AI Matters
Why it matters
OpenAI releases GPT-5.6 Sol updates and expands free ChatGPT access
OpenAI Improving GPT‑5.6 Sol in ChatGPT—and expanding access to GPT-5.6 Luna for free users
OpenAI released an updated version of its GPT-5.6 Sol model and granted free ChatGPT users unlimited access to the smaller GPT-5.6 Luna model.
Why it matters
Free users can now have unlimited daily conversations with a faster model and use a new reasoning button to get more detailed answers for complex questions.
Latest brief · Aug 6, 2026