OpenAI has announced updates to its ChatGPT offering. The company improved GPT-5.6 Sol, citing better accuracy and consistency. Alongside this, OpenAI expanded access to GPT-5.6 Luna, making it available to free users with unlimited everyday chats.
Why it matters
Expanding a model to free users with unlimited everyday chats broadens who can use ChatGPT without cost barriers, while improvements to Sol’s accuracy and consistency target the quality of responses.
Who should care
Current and prospective ChatGPT users, particularly those on the free tier, are the most directly affected by the expanded access and model improvements.