OpenAI's GPT-5.6 Luna Model and Rumors of Unlimited Free ChatGPT Chats
A social media post claims that free ChatGPT users now have unlimited text chats powered by OpenAI's new GPT-5.6 Luna model. According to official documentation, GPT-5.6 Luna is a highly cost-efficient model designed for high-volume workloads. The release of the GPT-5.6 model family, including the cost-efficient Luna, represents OpenAI's push to lower API costs and handle high-volume tasks. If integrated into the free tier of ChatGPT, it could significantly lower the barrier to accessing advanced AI capabilities. GPT-5.6 Luna features a context window of 1,050,000 tokens and a maximum output of 128,000 tokens, priced at $0.10 per million input tokens and $0.60 per million output tokens. However, claims regarding unlimited free access for ChatGPT users remain unverified by official OpenAI announcements.
## BACKGROUND
OpenAI recently launched the GPT-5.6 family of models, which includes the flagship Sol, the balanced Terra, and the cost-efficient Luna. These models are designed to scale frontier intelligence while offering different tiers of performance and cost to developers.