tech π€ OpenAI upgrades free ChatGPT to GPT-5.6 Luna
OpenAI announced that its free tier users will now get unlimited text chats using GPT-5.6 Luna. This update rolls out to the service used by about 1 billion people each week. The new model shows fewer factual errors, with Luna reducing errors by 62% internally. Paid users receive an updated GPT-5.6 Sol optimized for direct responses and better formatting. The unlimited text access starts the week of August 10, 2026.