GPT-5.6 Launch: ChatGPT Upgrades for All Users

OpenAI has rolled out significant performance upgrades for ChatGPT, impacting both free and premium users. Free users are now transitioning to GPT-5.6 Luna, which removes standard message volume limits for basic text chats. This new model also supports an impressive 1,050,000-token context window and handles text and visual inputs. Plus and Pro subscribers are getting GPT-5.6 Sol, an advanced model designed for concise, fact-checked responses. What's interesting is paid users can now manually set the depth of reasoning applied before a response is generated, with settings like Instant, Medium, High, and Extra High. The bottom line is these updates aim to enhance the speed, capabilities, and accuracy of ChatGPT for everyone.