OpenAI Drops GPT-5.6 Luna, Unlimited Free Chats
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- OpenAI updated the default ChatGPT model for free users to GPT-5.6 Luna and added unlimited text chats for the free tier in a Thursday announcement.
- OpenAI simultaneously rolled out an improved GPT-5.6 Sol version as part of upgrades applying to both paid and free ChatGPT users.
Why it matters: Free ChatGPT users gain OpenAI's newest default model (GPT-5.6 Luna) and unlimited text chats per Thursday's announcement — upgrades that previously sat behind the paid tier. The same-day rollout of an improved GPT-5.6 Sol version keeps OpenAI's model lineup fresh across both free and paid offerings.
