ChatGPT Free

ChatGPT’s free plan now runs on GPT-6 Luna in the Chat tab, rolling out from October 8, 2026. It is tuned for everyday conversation, and answers can now include Intelligent UI: charts, buttons, forms, and small interactive tools like calculators, built right into the chat. Free with a ChatGPT account. The rollout is staged, so the new model may not appear on every account immediately. Paid plans get the bigger GPT-6 Sol model.